A Travel Price Comparison for Families, Couples, and Backpackers Dusseldorf vs. Sibenik for Attractions, Food, Old Town, and Families

Should you visit Dusseldorf or Sibenik?

Which is cheaper to visit? Which is more expensive for vacation?

Which city should you visit? Read on to compare the activities as well as the prices of travel for Dusseldorf and Sibenik. We'll break down costs for accommodation, food, transportation and more to help you learn more about these two destinations. Then, you can figure out if either of these two places are accessible based on your travel budget, schedule, and interests. So, let's dig into it.

Dusseldorf

Dusseldorf is a fun-filled, cultural, and vibrant city. Since it's a large city, you'll find plenty of things to do. Other reasons to visit include food, shopping, and museums.

Sibenik

Sibenik is a authentic, local, and undiscovered town. Don't miss this spot, as it's a charming small town with plenty of activities. It's a gorgeous place to visit. It's also known for food, beaches, and shopping.

Dusseldorf and Sibenik: Pros and Cons

Pros
  • Popular museums and historical sights
  • Active nightlife
  • Family-friendly
  • Good for couples and romance
  • Good for backpackers and budget travelers
  • Good public transit
Pros
  • Popular museums and historical sights
  • Active nightlife
  • Nice resorts
  • Good scuba and snorkeling destination
  • Popular beach
  • Family-friendly
  • Good for couples and romance
  • Good for backpackers and budget travelers
Things to Consider
  • Public transit not as usable


Is there more to do in Dusseldorf or Sibenik?

Tourists will generally find more to do in Dusseldorf. Although Dusseldorf and Sibenik are both popular with visitors, Dusseldorf has more sights, activities, and attractions for travelers. Dusseldorf is more popular for its big city activities, while Sibenik is known for its museums, resorts, scuba diving & snorkeling, beaches, small town charm, and impressive beauty. Dusseldorf is popular for its music and art scene, as well as being the fashion capital of Germany. It is also home to Altstadt (the Old Town). Sibenik is popular for its photogenic beaches, charming old town, and surrounding natural beauty.

How is Dusseldorf different from Sibenik?

Which is Better for a Holiday?

Let's take a look at the differences and similarities between Sibenik and Dusseldorf. Then, you can decide for yourself which place is better for your next trip.

Are the Museums and Historical Sights Better in Dusseldorf or Sibenik?

Dusseldorf
Sibenik

Sibenik is a great destination for its museums and landmarks. Also, Dusseldorf is still popular, but not quite as popular for its historical sights.

Visitors can fill many days exploring the museums and attractions around Sibenik. Despite being skipped by many international tourists, the town has a number of historical landmarks such as Sibenik Cathedral, St. Michael's Fortress, and the fascinating the Dalmatian Ethno Village.

Dusseldorf offers a variety of museums and landmarks to choose from. There are museums, palaces, and many cultural sights. Make sure you check out Schloss Benrath, the Rheinturm, the North Rhine-Westphalia Art Collection, and Museum Kunstpalast.


Is the Food Better in Dusseldorf or Sibenik? Which Destination has the Best Restaurants?

Dusseldorf
Sibenik

Both Dusseldorf and Sibenik offer excellent local cuisine and restaurants.

With its innovative style combined with traditional elements, Dusseldorf makes for a great culinary experience. You'll find a mix of regional specialties and international restaurant options. Traditional dishes include Rheinischer Sauerbraten (Rhine style marinated roast), Haxe (shin), Flönz (blood sausage), and Ähzezupp (pea soup).

Sibenik has a huge number of terrific restaurants. The restaurants are local and delicious. The old town has cafes that spill into the squares, so dining is a truly delightful experience. This is a hidden gem on the Adriatic.

Is Dusseldorf or Sibenik Better for Nightlife?

Dusseldorf
Sibenik

It's hard to distinguish whether Dusseldorf or Sibenik has a better nightlife scene.

Dusseldorf has an active nightlife scene for those who seek it out. You'll find the highest concentration of bars and pubs in the old town area. Try to find a brewerie where you can try Dusseldorf's famous altbier.

If you're looking for night time activities Sibenik has a few options to choose from. During the summer months you'll find people filling the terraces and squares at night. There are also a number of festivals in and near town. If you're looking for nightlife, it's best to visit during one of these festivals.

Is Dusseldorf or Sibenik Better for Resorts?

Dusseldorf
Sibenik

Sibenik is a good destination for its resorts. However, Dusseldorf is not a resort destination.

Sibenik has a handful of resorts to choose from. The town has gained popularity in recent years and its become a popular summer resort destination for Europeans.

Dusseldorf is not a resort destination.


Is Dusseldorf or Sibenik Better for Scuba Diving and Snorkeling?

Dusseldorf
Sibenik

Sibenik is a town with a few options for the nearby scuba diving and snorkeling. However, Dusseldorf is not a scuba or snorkeling destination.

Sibenik has a few snorkeling spots. There aren't as many snorkeling trips leaving from this town as other, more popular beach destinations in Croatia.

Dusseldorf is not a scuba or snorkeling destination.

Is Dusseldorf or Sibenik Better for Beaches?

Dusseldorf
Sibenik

Sibenik is a great destination for its beaches. However, Dusseldorf is not a beach destination.

Many people visit Sibenik for it's beautiful beaches. The beaches are less crowded than those in the more popular nearby cities, but they are gaining popularity. In town, Banj Beach is a pebbly beach that is easy to access. Nearby Jadrija Beach is considered to be one of the most photogenic in the area and St. Nicholas Beach is one of the more remote.

Dusseldorf is not a beach destination.

Is Dusseldorf or Sibenik Better for its Old Town?

Dusseldorf
Sibenik

Visitors enjoy the excellent old town areas in both Dusseldorf and Sibenik.

There are many historical things to see in the old town of Dusseldorf. The old town is popular for its bars and pubs, which serve up the local altbier. The atmosphere is charming and there are restaurants that spill out onto the streets.

Many visitors explore the old town while visiting Sibenik. The charming old town is car-free and filled with quaint streets and lovely cafes.


Is the Shopping Better in Dusseldorf or Sibenik?

Dusseldorf
Sibenik

Shopping is a popular activity in both Sibenik and Dusseldorf.

Dusseldorf is a great destination for shopping. Head to the popular shopping street of Königsallee. You'll find luxury brands and boutique shops. The city also has department stores and large shopping malls.

Shopping is a popular activity when visiting Sibenik. You'll find some local shops selling interesting trinkets and souvenirs.

Is Dusseldorf or Sibenik Better for Families?

Dusseldorf
Sibenik

Both Dusseldorf and Sibenik are excellent family-friendly destinations.

Dusseldorf is a very family-friendly place to visit. It has many great playgrounds and parks where kids can run around. Animal lovers will appreciate Aquazoo Löbbecke Museum and Grafenberger Wald which has about 100 animals. If the weather's nice you can head to Unterbacher See, which is a lakefront beach. Other kid-friendly activities in town include the Neanderthal Museum and Museum Kunstpalast.

Because of its large number of kid-friendly activities, Sibenik is very family-friendly. It has grown into a popular summer resort destination. There are many outdoor activities in the area including kayaking, swimming, and boating. You should also take a day trip to Krka National Park to see the waterfalls. There are also some good beaches where families can hang out.

Is Dusseldorf or Sibenik Better for Couples?

Dusseldorf
Sibenik

Dusseldorf and Sibenik both excellent destinations for a couple.

Couples visit Dusseldorf frequently as it offers plenty of romantic activities. There is live theater, spa hotels, historic palaces, and many parks and gardens where couples can enjoy their time together. Popular activities for couples in town include visiting Rheinturm, taking a Rhine River cruise, and exploring Schloss Dyck.

Sibenik is a great city if you're traveling as a couple. The town is charming and filled with historic sights. There are also beaches and adventure sports for those looking for an adrenaline-filled vacation.


Is Dusseldorf or Sibenik Better for Backpackers and Budget Travelers?

Dusseldorf
Sibenik

Sibenik is a great destination for backpackers. Also, Dusseldorf is still popular, but not quite as popular for backpackers and budget travelers.

Backpackers come from all over to visit Sibenik. The town has a large number of hostels to choose from, making this an easy and convenient stop off for backpackers and budget travelers.

Plenty of budget travelers visit Dusseldorf. There are plenty of hostels and activities around town. There are also affordable restaurants and a nice nightlife scene.

Is Dusseldorf or Sibenik Better for Public Transit? Which Is Easier to Get Around Without a Car?

Dusseldorf
Sibenik

Dusseldorf is renowned for times when you don't have a car. Also, Sibenik is not quite as popular, but is fairly good for its public transit.

Dusseldorf has a great public transit system. All of the public transportation in town is operated by Rheinbahn. There's a city railway, (U-Bahn), suburban trains (S-Bahn), trams, and buses. Dusseldorf is also easily connected to the many other nearby towns and cities including Cologne.

You'll find some public transit in Sibenik, but it may not be enough to take you everywhere. There is a public bus system that can help you get around the area.

Is Dusseldorf or Sibenik a more walkable city?

Dusseldorf
Sibenik

Sibenik is very popular for its walkability. Also, Dusseldorf is still popular, but not quite as popular for its high level of walkability.

Getting around Sibenik on foot is easy. The old town is car-free and easily explored on foot.

Dusseldorf is a very walkable city. It's easy to explore most of the city on foot.


For even more information, also check out Is Dusseldorf Worth Visiting? and Is Sibenik Worth Visiting?.

Should I spend more time in Sibenik or Dusseldorf?

How long in Dusseldorf or Sibenik?

Visitors can find plenty of fun things to do in both Dusseldorf and Sibenik. In our opinion, Sibenik has more to see and do, so we recommend spending more time in Sibenik than Dusseldorf. However, 2-3 days is a good amount of time to spend in either destination.

Families should spend more time in Sibenik than Dusseldorf. Because of the many family-friendly attractions and fun things to do for kids in Sibenik, it's a great place to visit with the whole family.

Couples should spend more time in Sibenik than Dusseldorf. You'll find plenty of romantic sights and fun activities in Sibenik that are perfect for a weekend getaway or a longer couple's trip.

Backpackers and budget travelers should spend more time in Sibenik than Dusseldorf if your budget allows for it. With a larger number of budget-friendly sights, good nightlife, and active things to do, anyone traveling on a budget would have a good time in Sibenik.


  • How many days in Dusseldorf or Sibenik? Ideal Length of Stay
    Dusseldorf 2-3 
    Sibenik 2-3

One day in Dusseldorf or Sibenik?

In Dusseldorf, you'll find nightlife and food. Most visitors spend time around the old town while in the area. This city offers something for everyone. One day is usually not enough time for a trip here as there is plenty to do.

With museums and nightlife around the local town of Sibenik, there's plenty to do. Anyone can find something fun to do here. Make sure you visit the old town while you're here. But since there are so many activities, you'll likely want to spend more than one day exploring.

A weekend in Dusseldorf or Sibenik?

In Dusseldorf, you'll find food and shopping. The length of your trip often depends on your style of travel. A weekend here is typical. Visiting the old town is also a must. A weekend is a great amount of time to relax and see the many things that Dusseldorf has to offer.

With nightlife and food around the destination of Sibenik, there's plenty to do. It's also a great beach destination, too. It offers something for everyone. Many people spend a weekend here. In a weekend, you should have a good grasp of this town.

Five days in Dusseldorf or Sibenik?

Dusseldorf is a great place to explore. The old town is one of the main draws for visitors. Five days is more than enough time to enjoy everything. Take some day trips to nearby places to fill the extra days. Anyone can find something fun to do here.

Sibenik, a popular town, is full of activities for travelers. Visiting the old town is also a must. Most people find that five days is more than enough time to see everything. Your budget might influence how long you stay.


A week in Dusseldorf or Sibenik?

It's hard to know how much time to spend in Dusseldorf. Many people enjoy the museums and nightlife when visiting Dusseldorf. Exploring the old town is a popular activity. One week may feel like too much time unless you plan to do a lot of relaxing.

Sibenik is a popular place that is full of things to see and experience. One week is plenty of time to see everything, even with extra days to spare. It has many unique tourist attractions and fascinating things to do.


For some great organized tour ideas, see The Best One-Week (7-Day) Tours from Munich, The Best One-Week (7-Day) Tours from Berlin, The Best One-Week (7-Day) Tours from Dubrovnik, and The Best 2-Week Tours from Dubrovnik.


Which place is cheaper, Sibenik or Dusseldorf?

These are the overall average travel costs for the two destinations.

The average daily cost (per person) in Dusseldorf is €185, while the average daily cost in Sibenik is €93. These costs include accommodation (assuming double occupancy, so the traveler is sharing the room), food, transportation, and entertainment. While every person is different, these costs are an average of past travelers in each destination. What follows is a categorical breakdown of travel costs for Dusseldorf and Sibenik in more detail.



Accommodation
  • Accommodation Hotel or hostel for one person
    Dusseldorf 95
    Sibenik 55
  • Accommodation Typical double-occupancy room
    Dusseldorf 190
    Sibenik 110
Compare Hotels in Dusseldorf and Sibenik

Looking for a hotel in Dusseldorf or Sibenik? Prices vary by location, date, season, and the level of luxury. See below for options and compare which is best for your budget and travel style.

Hotels in Dusseldorf


Hotels in Sibenik


Kayak helps you find the best prices for hotels, flights, and rental cars for destinations around the world. Compare prices for multiple destinations when planning your next trip.


Our Analysis
We've analyzed the average and typical hotel prices based on guest reviews, star ratings, and hotel amenities here: Dusseldorf Hotel Prices and Sibenik Hotel Prices.

Local Transportation
  • Local Transportation Taxis, local buses, subway, etc.
    Dusseldorf 1.63
    Sibenik 13

Hired Cars and Shuttles in Dusseldorf

Some specific examples of transportation prices in Dusseldorf:

  • Dusseldorf Arrival Private Transfers from Airport DUS to Dusseldorf: $73
  • Dusseldorf Airport Transfers : Dusseldorf to Airport DUS in Luxury Car: $86
  • Dusseldorf Airport Transfers : Airport DUS to Dusseldorf in Luxury Van: $77
  • Dusseldorf Airport Transfers : Airport DUS to Dusseldorf in Luxury Car: $86
  • Dusseldorf Airport Transfers : Airport DUS to Dusseldorf in Business Car: $73
  • Dusseldorf Airport (DUS) to Dusseldorf - Arrival Private Transfer: $49
  • Arrival Private Transfer Dusseldorf Train Station or Port by Car: $92

Hired Cars and Shuttles in Sibenik

Also for Sibenik, here are a few examples of actual transportation services:

  • Airport transfer from Split to Šibenik or vice versa: $164
  • Private transfer from Sibenik to Split: $262
  • Private transfer from Sibenik to Split airport: $126

Is it cheaper to fly into Dusseldorf or Sibenik?

Prices for flights to both Sibenik and Dusseldorf change regularly based on dates and travel demand. We suggest you find the best prices for your next trip on Kayak, because you can compare the cost of flights across multiple airlines for your prefered dates.





Food
  • Food Meals for one day
    Dusseldorf 76
    Sibenik 29
Typical Food Prices in Dusseldorf

Below are a few samples from actual travelers for food and meal costs in Dusseldorf:


  • Salami
    1.99
  • Nutella
    1.00
  • Yogurt
    1.00

Food Tours and Cooking Classes in Dusseldorf

Also, here are some specific examples of food and dining related activities in Dusseldorf.

  • Culinary Flingern – The Food Tour: $48

Entertainment
  • Entertainment Entrance tickets, shows, etc.
    Dusseldorf 25
    Sibenik 12

Tours and Activities in Dusseldorf

Here are a few actual costs in Dusseldorf for available activities, ticket prices, and tours:

  • Beer tour with tasting in Dusseldorf: $34
  • Best Intro Tour of Dusseldorf with a Local: $141
  • City game scavenger hunt Düsseldorf - independent city tour I discovery tour: $44
  • City game scavenger hunt Duisburg - independent city tour I discovery tour: $44
  • Düsseldorf 2-Hour Evening Cruise: $27
  • Düsseldorf Scavenger Hunt and Best Landmarks Self-Guided Tour: $7.10
  • Düsseldorf Scavenger Hunt and Sights Self-Guided Tour: $11
  • Düsseldorf Segway Rhein Tour: Rhine River Experience: $86
  • Düsseldorf Segway Tour: Classical City Experience: $86
  • Düsseldorf Self-Guided Audio Tour: $9.00
  • Düsseldorf Sightseeing round-trip Cruise: $19
  • Dusseldorf : Private Walking tour with A Guide (Private Tour): $51

Tours and Activities in Sibenik

For Sibenik, here are a few prices for actual activities, tours, and tickets provided by various companies:

  • Discover Šibenik - Evening walking tour : $38
  • Daily or night walking tour through Medieval Šibenik: $45
  • Private Sibenik Walking Historical Morning or Evening Tour: $49
  • Via Ferrata tour - Čikola Canyon: $74
  • Krka Waterfalls National Park Boat Tour from Vodice: $76
  • Kornati island National Park & Telascica Nature Park Boat Tour from Vodice: $76
  • Šibenik Riviera boat tour: Zlarin + Prvić + Tijat: $120
  • Kornati Experience small group (12 pax) boat tour: $137
  • Sibenik Private Combined Food & Drink and Historical Tour: $152
  • Full-Day Sailing Tour in Šibenik Archipelago: $164
  • The Best of Sibenik Private Walking Tour: $164
  • Private walking tour of Sibenik: $164

Alcohol
  • Alcohol Drinks for one day
    Dusseldorf 23
    Sibenik 16
Typical Alcohol Prices in Dusseldorf

Some typical examples of the costs for nightlife and alcohol in Dusseldorf are as follows:


  • Night Out Drinking
    25

Sample the Local Flavors in Dusseldorf

Some specific costs for nightlife related activities in Dusseldorf:

  • Brewery Tour Düsseldorf in English (inc. 3 beer): $29

Sample the Local Flavors in Sibenik

Some specific costs for nightlife related activities in Sibenik:

  • Vinoplod Winery - Wine Tasting Tour: $29
  • Private Krka Waterfalls Tour with Wine Tasting from Sibenik: $213
  • From Split or Trogir: Krka National Park & Wine Tasting Tour: $1,069


When we compare the travel costs of actual travelers between Dusseldorf and Sibenik, we can see that Dusseldorf is more expensive. And not only is Sibenik much less expensive, but it is actually a significantly cheaper destination. So, traveling to Sibenik would let you spend less money overall. Or, you could decide to spend more money in Sibenik and be able to afford a more luxurious travel style by staying in nicer hotels, eating at more expensive restaurants, taking tours, and experiencing more activities. The same level of travel in Dusseldorf would naturally cost you much more money, so you would probably want to keep your budget a little tighter in Dusseldorf than you might in Sibenik.

If you're trying to decide if either of these two destinations are within your price range, also see Is Dusseldorf Expensive? and Is Sibenik Expensive?.


Which is Bigger, Dusseldorf or Sibenik?

Dusseldorf has a larger population, and is about 20 times larger than the population of Sibenik. When comparing the sizes of Dusseldorf and Sibenik, keep in mind that a larger population does not always imply the destination has more attractions or better activities. So, always research the type of place that you want to visit along with the activities and attractions that interest you.


When is the best time to visit Dusseldorf or Sibenik?

Both places have a temperate climate with four distinct seasons. As both cities are in the northern hemisphere, summer is in July and winter is in January.

Should I visit Dusseldorf or Sibenik in the Summer?

The summer brings many poeple to Dusseldorf as well as Sibenik. The summer months attract visitors to Dusseldorf because of the city activities and the family-friendly experiences. Additionally, the beaches, snorkeling, the small town charm, and the family-friendly experiences are the main draw to Sibenik this time of year.

Dusseldorf is cooler than Sibenik in the summer. The daily temperature in Dusseldorf averages around 19°C (66°F) in July, and Sibenik fluctuates around 26°C (80°F).

The sun comes out a lot this time of the year in Sibenik. In the summer, Dusseldorf often gets less sunshine than Sibenik. Dusseldorf gets 195 hours of sunny skies this time of year, while Sibenik receives 345 hours of full sun.

Dusseldorf usually gets more rain in July than Sibenik. Dusseldorf gets 71 mm (2.8 in) of rain, while Sibenik receives 28 mm (1.1 in) of rain this time of the year.


  • Summer Average Temperatures July
    Dusseldorf 19°C (66°F) 
    Sibenik 26°C (80°F)

Should I visit Dusseldorf or Sibenik in the Autumn?

Both Sibenik and Dusseldorf are popular destinations to visit in the autumn with plenty of activities. The city's sights and attractions and the shopping scene are the main draw to Dusseldorf this time of year. Also, many travelers come to Sibenik for the shopping scene, the small town atmosphere, and the natural beauty of the area.

In the autumn, Dusseldorf is much colder than Sibenik. Typically, the autumn temperatures in Dusseldorf in October average around 12°C (53°F), and Sibenik averages at about 18°C (64°F).

It's quite sunny in Sibenik. Dusseldorf usually receives less sunshine than Sibenik during autumn. Dusseldorf gets 112 hours of sunny skies, while Sibenik receives 200 hours of full sun in the autumn.

In October, Dusseldorf usually receives less rain than Sibenik. Dusseldorf gets 56 mm (2.2 in) of rain, while Sibenik receives 79 mm (3.1 in) of rain each month for the autumn.


  • Autumn Average Temperatures October
    Dusseldorf 12°C (53°F) 
    Sibenik 18°C (64°F)

Should I visit Dusseldorf or Sibenik in the Winter?

Both Sibenik and Dusseldorf during the winter are popular places to visit. Many travelers come to Dusseldorf for the museums, the shopping scene, and the cuisine. Also, many visitors come to Sibenik in the winter for the museums, the shopping scene, and the cuisine.

Be prepared for some very cold days in Dusseldorf. In January, Dusseldorf is generally much colder than Sibenik. Daily temperatures in Dusseldorf average around 3°C (37°F), and Sibenik fluctuates around 8°C (47°F).

In the winter, Dusseldorf often gets less sunshine than Sibenik. Dusseldorf gets 45 hours of sunny skies this time of year, while Sibenik receives 128 hours of full sun.

Dusseldorf usually gets less rain in January than Sibenik. Dusseldorf gets 67 mm (2.6 in) of rain, while Sibenik receives 83 mm (3.3 in) of rain this time of the year.


  • Winter Average Temperatures January
    Dusseldorf 3°C (37°F) 
    Sibenik 8°C (47°F)

Should I visit Dusseldorf or Sibenik in the Spring?

The spring attracts plenty of travelers to both Dusseldorf and Sibenik. Many visitors come to Dusseldorf in the spring for the activities around the city. Also, most visitors come to Sibenik for the beaches, the small town charm, and the natural beauty during these months.

Dusseldorf is much colder than Sibenik in the spring. The daily temperature in Dusseldorf averages around 9°C (48°F) in April, and Sibenik fluctuates around 15°C (59°F).

People are often attracted to the plentiful sunshine in Sibenik this time of the year. Dusseldorf usually receives less sunshine than Sibenik during spring. Dusseldorf gets 155 hours of sunny skies, while Sibenik receives 212 hours of full sun in the spring.

In April, Dusseldorf usually receives less rain than Sibenik. Dusseldorf gets 51 mm (2 in) of rain, while Sibenik receives 66 mm (2.6 in) of rain each month for the spring.


  • Spring Average Temperatures April
    Dusseldorf 9°C (48°F) 
    Sibenik 15°C (59°F)

Typical Weather for Sibenik and Dusseldorf

Dusseldorf Sibenik
Temp (°C) Rain (mm) Temp (°C) Rain (mm)
Jan 3°C (37°F) 67 mm (2.6 in) 8°C (47°F) 83 mm (3.3 in)
Feb 3°C (38°F) 49 mm (1.9 in) 9°C (48°F) 68 mm (2.7 in)
Mar 6°C (44°F) 64 mm (2.5 in) 11°C (52°F) 75 mm (3 in)
Apr 9°C (48°F) 51 mm (2 in) 15°C (59°F) 66 mm (2.6 in)
May 14°C (57°F) 70 mm (2.8 in) 20°C (67°F) 56 mm (2.2 in)
Jun 17°C (62°F) 86 mm (3.4 in) 23°C (74°F) 51 mm (2 in)
Jul 19°C (66°F) 71 mm (2.8 in) 26°C (80°F) 28 mm (1.1 in)
Aug 19°C (66°F) 62 mm (2.5 in) 26°C (79°F) 50 mm (2 in)
Sep 16°C (60°F) 57 mm (2.2 in) 22°C (72°F) 61 mm (2.4 in)
Oct 12°C (53°F) 56 mm (2.2 in) 18°C (64°F) 79 mm (3.1 in)
Nov 7°C (44°F) 66 mm (2.6 in) 13°C (56°F) 108 mm (4.3 in)
Dec 4°C (40°F) 74 mm (2.9 in) 10°C (49°F) 100 mm (3.9 in)