9 Items Close to 30 cm in Length

9 things that are about 30 centimeters (cm) long

When it comes to measurements, 30 centimeters (cm) might not seem like a significant length at first glance. However, there are several everyday items that measure around 30 cm in length. In this article, we will explore a list of 9 intriguing things that are about 30 centimeters long.

Key Takeaways:

  • There are many items that measure around 30 cm in length.
  • Chef knives typically have a total length of about 30 cm, including the blade and handle.
  • Credit cards are approximately 8.6 cm in length, making them around 30 cm when placed side by side.
  • A pair of standard-sized hotdogs in buns measures up to about 30 cm.
  • A 2-liter soda bottle, when laid flat, extends to approximately 30 cm in length.

Chef Knives

chef knife size

When it comes to kitchen utensils, one item that stands out in terms of size is the chef knife. These essential tools in the culinary arts offer a versatile range of functions, making them a staple in both professional kitchens and home cooking.

A standard chef knife typically measures around 30 centimeters in length, with a blade size of approximately 20 centimeters. The remaining 10 centimeters are added by the handle, providing a comfortable grip and control during chopping, slicing, and dicing tasks.

With its optimal size and weight distribution, a chef knife ensures precision and efficiency in the kitchen. Whether you’re handling delicate herbs or cutting through tough vegetables, this culinary companion allows for seamless maneuverability and precise cuts.

Investing in a high-quality chef knife is crucial for anyone passionate about cooking or pursuing a career in the culinary arts. The right knife can significantly enhance your cooking experience and elevate your culinary creations to the next level.

Credit Cards

credit card dimensions

Another item that measures about 30 cm in length is a credit card. These slender rectangular pieces of plastic have become a ubiquitous form of currency in the digital age. With dimensions of approximately 8.6 cm in length and 5.4 cm in width, credit cards grant access to goods and services, making them an essential item in our daily lives.

Credit cards are widely accepted as a convenient and secure method of payment. They contain important information such as the cardholder’s name, account number, expiration date, and security code, allowing for seamless transactions in both physical and online stores.

In addition to their size, credit cards offer various benefits and features for cardholders. They provide a convenient way to track expenses, build credit history, earn rewards, and enjoy perks such as purchase protection and travel insurance.

Credit Card Dimensions

The dimensions of a standard credit card are generally consistent across different issuers. The most common dimensions for credit cards are:

  • Length: 8.6 cm
  • Width: 5.4 cm

These dimensions allow credit cards to fit comfortably in wallets and cardholders, making them easy to carry and access when needed.

With their compact size and versatility, credit cards have become an integral part of our financial lives. Whether we are making a small purchase at a local store or booking a flight online, credit cards offer a convenient and widely accepted method of payment.



Hotdogs are a beloved comfort food, often enjoyed at backyard barbecues and sporting events. These iconic treats are a staple of American cuisine, offering a delicious combination of smoky and savory flavors. But have you ever wondered how long a hotdog actually is?

Surprisingly, when two standard-sized hotdogs are placed snugly within their buns, they measure up to about 30 cm in length. This makes them a perfect handheld snack for any occasion. Whether you prefer to top your hotdog with mustard, ketchup, relish, onions, or all of the above, there’s no denying the irresistible appeal of a well-dressed hotdog.

So the next time you’re at a barbecue or a game, take a moment to appreciate the humble hotdog and its comforting presence. It’s no wonder that hotdogs have become a symbol of summer and a classic American indulgence.

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Hotdog Length:Approximately 30 cm
Hotdog Bun:A warm and soft accompaniment to the hotdog
Backyard Barbecues:A popular setting for hotdog consumption
Comfort Food:Hotdogs provide a satisfying and nostalgic dining experience

Next time you bite into a hotdog, savor the moment and enjoy this beloved comfort food.

2 Liter Soda Bottle

When we think of 2-liter soda bottles, we often envision tall containers that provide us with our favorite fizzy drink. But have you ever considered the length of these carbonated beverage containers? While they may appear shorter when upright, a 2-liter soda bottle measures approximately 30 cm in length.

With its generous capacity, the 2-liter soda bottle has become a popular choice for storing and consuming carbonated beverages. Its dimensions offer a convenient beverage option for gatherings, parties, or simply enjoying a refreshing drink at home. The carbonation adds a delightful fizz to the beverage, heightening the sensory experience and making it a go-to choice for many.

Let’s take a closer look at the dimensions of a typical 2-liter soda bottle:

LengthApproximately 30 cm
WidthVaries, typically between 10 cm and 12 cm
HeightVaries, typically between 32 cm and 35 cm
Weight (empty)Approximately 50 grams to 70 grams

The 2-liter soda bottle offers a convenient and portable way to enjoy your favorite carbonated beverages. Its length of approximately 30 cm ensures that you have plenty of your preferred fizzy drink to quench your thirst and share with others.

Next time you reach for a 2-liter soda bottle, take a moment to appreciate its dimensions and the role it plays in providing a refreshing beverage option. Cheers to enjoying your favorite fizzy drinks in the comfort of your own home!

Dollar Bills

dollar bill dimensions

When it comes to currency measurement, dollar bills are a significant part of our everyday financial transactions. These valuable pieces of paper have a distinctive length of approximately 15.6 cm and a width of 6.6 cm. While on their own, a single dollar bill may not seem like much, placing two of these greenbacks side by side brings us close to the 30-centimeter mark.

Dollar bills not only represent monetary value but also serve as a symbol of exchange in various economic activities. Whether used to make purchases, pay bills, or contribute to savings, these currency notes play a crucial role in our financial lives.

To give you a better understanding of the dimensions of dollar bills, the following table provides a detailed comparison:

Dollar Bill15.6 cm6.6 cm

As seen in the table, dollar bills have a length of 15.6 cm and a width of 6.6 cm, making them relatively compact and easy to carry. Despite their compact size, dollar bills hold significant value and serve as a tangible representation of our financial resources.

In summary, dollar bills, with their specific dimensions, form an essential part of our currency system. Being a symbol of value and facilitating financial transactions, they play a crucial role in our daily lives.

Standard Ruler

When it comes to measuring things, a standard ruler is an indispensable tool. Widely used in classrooms, offices, and various other settings, a standard ruler provides us with a reliable means of obtaining precise measurements. These versatile instruments typically span a length of 30 cm, making them suitable for a wide range of applications.

The standard ruler’s carefully marked increments and straight edge allow us to gauge the sizes of objects accurately. Whether we need to measure the length of a piece of fabric, compare the dimensions of different items, or draw straight lines, the ruler helps us navigate the world of measurements with ease and precision.

Ruler LengthMeasurement ToolLength ComparisonPrecise Measurements
30 cmStandard RulerEnable size comparisonAccurate measurements
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With a ruler in hand, we can confidently measure objects of various sizes, from small trinkets to larger items within the ruler’s range. Its clear and concise markings allow for precise readings, eliminating the need for estimation or guesswork. Whether we are engaged in a DIY project, drafting a design, or simply satisfying our curiosity, the ruler provides us with the means to obtain accurate and reliable measurements.

In the wise words of Albert Einstein, “Everything of importance has been measured out.”

As we navigate through our daily lives, the ability to obtain accurate measurements is essential. The standard ruler, with its fixed length of 30 cm, serves as a valuable tool in our quest for precise dimensions. From educational purposes to personal projects and beyond, the ruler’s versatility and accuracy make it an invaluable companion for anyone seeking to measure the world around them.

Now, let’s explore another intriguing item that measures about 30 cm in length – the small fish aquarium.

Small Fish Aquarium

A small fish aquarium, with a typical size of 30 cm in length, offers an enchanting option for those seeking to bring a touch of aquatic beauty into their homes. These compact habitats provide a comfortable living space for a variety of colorful fish species, becoming a captivating centerpiece that offers a glimpse into the wonders of underwater life.

Creating an underwater oasis in your home has never been easier. A small fish aquarium allows you to experience the tranquility and serenity of underwater life, right in your living space. With its compact size, it can fit seamlessly into any corner or tabletop, bringing a touch of natural beauty and a sense of calmness to your surroundings.

Whether you are a beginner or an experienced aquarist, a small fish aquarium is the perfect starting point. It requires minimal maintenance and is ideal for housing a small community of fish. You can choose from a variety of fish species that thrive in smaller tanks, such as guppies, tetras, and bettas, each adding their own vibrant colors and unique personalities to your aquatic ecosystem.

Watching the graceful movements of fish as they navigate through their aquatic world can be a mesmerizing experience. The gentle sway of aquatic plants, the shimmering scales catching the light, and the serene ambiance of the water create a captivating display of natural beauty.

Benefits of a Small Fish Aquarium:

  • Create a peaceful and relaxing atmosphere in your home
  • Add a pop of color and vibrancy to your living space
  • Observe the fascinating behaviors and interactions of fish
  • Teach children about the wonders of marine life and responsibility
  • Promote a sense of mindfulness and stress relief

With advancements in aquarium technology, maintaining a small fish aquarium has become easier than ever. Filter systems, lighting options, and automatic feeders make it simple to keep your aquatic ecosystem thriving.

“Having a small fish aquarium in my home has truly enhanced my living space. It brings a sense of tranquility and natural beauty, and watching the fish swimming gracefully is both relaxing and mesmerizing.” – Amy, aquarium enthusiast

Whether you are a seasoned aquarium hobbyist or someone looking to explore the wonders of underwater life, a small fish aquarium offers a captivating and awe-inspiring experience. It is a window into the aquatic world, allowing you to witness the beauty and harmony of underwater life firsthand.

Medium-Sized Potted Plant

Adding a touch of nature to our living spaces, medium-sized potted plants serve as living decorations that liven up our surroundings. With a length of around 30 cm, these green companions not only beautify our homes but also contribute to cleaner air and a sense of tranquility.

Medium-sized potted plants are a popular choice for indoor decor due to their manageable size and ability to thrive in indoor environments. They bring a vibrant and refreshing element to any room, creating a serene and inviting atmosphere. Whether placed on a windowsill, shelf, or desk, these plants add a pop of color and a touch of nature to our living spaces.

“A houseplant brings life and beauty to a room like no other decor item. It has a way of making a space feel fresh, cozy, and lively.” – Lily Thompson, Interior Designer

Indoor plants not only enhance the aesthetic appeal of our homes but also provide numerous health benefits. They release oxygen and purify the air by removing toxins, improving the overall air quality and creating a healthier environment. Additionally, caring for plants can be a therapeutic and relaxing experience, promoting stress reduction and a sense of well-being.

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When choosing a medium-sized potted plant, consider factors such as sunlight requirements, water needs, and the overall size and shape of the plant. Some popular options for medium-sized indoor plants include the Snake Plant, Peace Lily, and Pothos. These plants are known for their adaptability and ability to thrive in a variety of indoor conditions.

Benefits of Medium-Sized Potted Plants:

  • Enhance the aesthetic appeal of our homes
  • Purify the air and improve indoor air quality
  • Promote a sense of well-being and relaxation
  • Bring nature indoors and create a calming atmosphere
  • Provide a rewarding hobby and promote mindfulness

Whether you’re a seasoned plant enthusiast or a beginner looking to introduce some greenery into your space, medium-sized potted plants are a wonderful choice. Their compact size, easy maintenance, and ability to thrive indoors make them ideal companions for any home or office.

Standard Laptop Keyboard

In the age of technology, a standard laptop keyboard measures approximately 30 cm in length. This essential input device allows us to express our thoughts, communicate, and navigate through the digital realm. From typing emails to crafting creative works, the keyboard serves as our conduit for sharing and connecting.

When it comes to digital communication, the keyboard plays a vital role in enabling us to convey our ideas and messages effectively. Its compact design makes it a convenient laptop accessory, allowing us to carry it wherever we go. Whether you are sending a quick message to a friend or drafting a comprehensive report, the laptop keyboard serves as a versatile typing tool that facilitates efficient and accurate text input.


In conclusion, we have explored a fascinating list of 9 items that measure around 30 cm in length. These objects, ranging from kitchen tools like chef knives to everyday essentials like credit cards and dollar bills, demonstrate the diverse measurements and size comparisons within this relatively small length.

By appreciating the size of these everyday items, we gain a better understanding of their functionality and the scale of objects in our daily lives. Whether it’s wielding a versatile chef knife in the culinary arts or making financial transactions with credit cards and dollar bills, these objects play integral roles in our routines.

Furthermore, the 30 cm length serves as a size benchmark for various items, allowing us to gauge and compare the dimensions of objects more accurately. From the precision of a standard ruler to the enchanting beauty of a small fish aquarium, these items demonstrate the range of possibilities within this specific measurement.

By considering the measurements and potential size comparisons of these objects, we cultivate a deeper appreciation for the diverse and practical applications of a seemingly modest length. As we encounter and interact with these items in our daily lives, let us remember the impact that even a 30 cm measurement can have on our experiences.


What are some items that measure around 30 cm in length?

Here are nine items that are about 30 centimeters long:

1. Chef knives

2. Credit cards

3. Hotdogs

4. 2-liter soda bottles

5. Dollar bills

6. Standard rulers

7. Small fish aquariums

8. Medium-sized potted plants

9. Standard laptop keyboards

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Baron Cooke has been writing and editing for 7 years. He grew up with an aptitude for geometry, statistics, and dimensions. He has a BA in construction management and also has studied civil infrastructure, engineering, and measurements. He is the head writer of measuringknowhow.com

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