22 Cool Things That are 2 Centimeters Long (With Pictures)

Are you wondering, how big is 2 cm? It’s a small measurement, but you’d be surprised how common it is. You can find a lot of things that are 2 centimeters long, big, or wide.

Here’s the quick answer: 2 cm is about the size of a small button, the width of a Skittle, or a large peanut. That’s pretty tiny! In measurements, 2 centimeters cm is equal to:

• 20 millimeters (mm)
• 0.787 inches (just under 8/10 of an inch)

If you’ve ever had trouble imagining such a small length, don’t worry. In this article, I’ll break it down with real-life objects you know and use daily.

How Big Is 2 cm? (Get an Idea)

Two centimeters is a very short length. On a standard metric ruler, 2 cm equals the space from the 0 mark to the 2 cm line. It is roughly the width of a small button or the diameter of a coin like a dime.

To give a clearer idea, 2 cm is about the length of an average fingernail. Many small objects around us, such as a sugar cube or a paperclip, are also close to this size.

If you need to measure 2 cm accurately, you can use:

• A ruler
• Tape measure
• Any tool that shows metric units.

Most rulers have clear centimeter markings, so measuring this short length is easy.

Understanding the size of 2 cm helps in everyday tasks like:

• Crafting
• Sewing
• Measuring small spaces.

It’s not large, but it’s precise enough for many purposes.

Understanding how small 2 cm is becomes even clearer when you compare it to larger measurements, like 9-inch-long items. Take a look at this list of items that are 9 inches long.

How Big Is 2 cm on a Ruler?

On a ruler marked with centimeters, 2 cm is the space from the 0 to the 2 cm line. Each centimeter is divided into ten smaller parts called millimeters. Two centimeters would equal 20 of those small millimeter lines.

If your ruler also has inches, you’ll notice that 2 cm is less than 1 inch. Centimeter markings are evenly spaced, so finding 2 cm is simple by counting the lines.

How Big Is 2 cm in Inches?

In inches, 2 cm equals approximately 0.79 inches. This means it’s slightly smaller than 1 inch. On a ruler with both inches and centimeters, you can see that 2 cm falls a little past the ¾-inch mark.

Simple, right?

Now, let’s look at 22 fun things that are 2 cm long.

22 Surprising Things That Are 2 Centimeters Long

Here’s the list of items that are 2 centimeters (cm) long, big, or wide:

• A standard pencil eraser
• A small button
• A Large Peanut
• A Nickel (U.S. coin)
• A dice side
• An SD Card
• A small jewelry bead
• Skittles
• AAA Battery Width
• A large pea
• A fingernail
• A Thumbtack
• A small safety pin
• Sewing needle
• 100-Page Notepad
• A LEGO brick-width
• A Drill bit
• The thickness of a smartphone case
• Aspiring tablet
• A smartwatch strap pin
• Half of a Golf Ball
• A piano key cover cap

A Standard Pencil Eraser

A pencil eraser is a simple and clear example of something 2 centimeters long. It’s the small eraser you find on the end of a standard pencil. If you’ve ever used one, you know it’s just the right size for erasing small mistakes.

If you place a pencil eraser next to a ruler, you’ll see it lines up perfectly with the 2 cm mark. It’s compact and easy to handle, making it an everyday item.

These erasers are often made of soft rubber, which helps them remove pencil marks smoothly. Their small size makes them easy to carry in a pencil case or pocket. Despite being so tiny, they’re a powerful tool for anyone who writes or draws.

A Small Button

A small button, like the ones on shirts or blouses, is another everyday object that is 2 centimeters big. Buttons this size are also great for sewing projects or crafts. You can find them in various materials, like plastic, metal, or even wood, but their size stays fairly consistent, making them easy to work with.

These buttons are tiny yet strong, holding your clothes together securely. So, the next time you button your shirt, you can remember that it’s roughly 2 cm in diameter.

A Large Peanut

A large peanut is usually around 2 centimeters long. You’ve probably eaten peanuts as a snack or seen them in mixed nuts. Peanuts this size are often roasted, salted, or turned into peanut butter. Their small size makes them easy to grab and eat without feeling overwhelmed.

If you look at a peanut and imagine its length, you’ll see it’s close to 2 cm. This measurement applies to the bigger peanuts, as smaller ones can be a bit shorter. It’s the perfect size for portioning snacks or adding to recipes.

A Nickel (U.S. Coin)

A nickel is slightly larger than 2 cm in diameter, measuring about 2.1 cm. However, it’s close enough to serve as a good example of what 2 cm looks like. If you place a nickel next to a ruler, you’ll see it aligns almost perfectly.

Nickels are easy to find and universally recognized. Their size is perfect for carrying in your pocket or wallet without being too heavy or bulky.

In addition, nickels are often used in science projects and games. Their consistent size makes them reliable for these purposes.

A Dice Side

A standard six-sided dice has sides that measure about 2 cm each. This size is carefully chosen so that dice are easy to hold, roll, and read during games.

When you pick up a dice, you’ll notice how manageable its size feels. Its 2 cm sides are large enough to see clearly. Dice is also used in classrooms to teach math concepts like probability. Their 2 cm size ensures they’re portable and easy to store with board games.

An SD Card

An SD card is about 2 cm wide. These tiny memory cards are essential for storing photos, videos, and data, even though they’re small enough to fit in your hand. Despite being so small, SD cards can hold enormous amounts of data, from gigabytes to terabytes.

The 2 cm width of an SD card ensures it fits snugly into cameras, laptops, or card readers without taking up too much space. This design is intentional, making them practical for both professionals and casual users.

However, because SD cards are so small, they can be easy to misplace. Many people keep them in protective cases to prevent loss.

A Small Jewelry Bead

Jewelry beads are also around 2 cm. That also makes them perfect for creating necklaces, bracelets, and other accessories. Using 2 cm beads in jewelry ensures that the final piece is lightweight but still noticeable.

These beads come in various materials, such as glass, plastic, or metal. Despite the variety, the 2 cm size remains a favorite because it works well with standard thread and string sizes. Their consistent size also helps in creating symmetrical patterns.

Skittles

A single Skittle candy is about 2 cm in diameter, making it a colorful and tasty way to understand this measurement. These small, round candies are perfect for snacking, and their size makes them easy to pop into your mouth.

If you’ve ever held a Skittle, you’ll notice it fits neatly within your fingertips. This size is consistent across all Skittles, whether they’re original, sour, or tropical flavors.

Skittles are not just fun to eat. Nope. They’re also used in educational activities, like counting or sorting by color. Their uniform 2 cm size makes them an ideal teaching tool for kids learning about measurements.

AAA Battery Width

Another common measurement is the width of an AAA battery, which is about 2 cm. This size is standardized, which means all AAA batteries are consistent, no matter the brand. So, it’s a reliable example of how small 2 cm is.

AAA batteries are compact and lightweight, which is why they’re preferred for portable devices. Despite their small size, AAA batteries are powerful. They provide energy for devices that we use daily. Their 2 cm width plays a key role in making them easy to handle and insert.

A Large Pea

A large pea is about 2 cm in diameter. Peas this size are easy to handle and portion. If you’ve ever cooked with peas, you’ll know how small and round they are. The next time you enjoy a bowl of peas, think about their size. That 2 cm measurement is small but significant.

A Fingernail

An average fingernail is about 2 cm long, especially on most adults’ index finger or middle finger. If you look at your hand, you’ll notice that your fingernail almost perfectly matches this length.

Fingernails grow at a slow pace, and their small size is practical for daily activities. A 2 cm nail is manageable and doesn’t interfere with tasks like typing, cooking, or writing.

Nails are a natural example of how 2 cm appears in real life. They’re always with you, making them a convenient reference.

A Thumbtack

A standard thumbtack measures about 2 cm in length, from the point to the flat head. These small but handy tools are commonly used to pin:

• Papers
• Photos
• Reminders onto bulletin boards.

If you place a thumbtack next to a ruler, you’ll see it lines up almost perfectly with the 2 cm mark. This uniform size is intentional, ensuring the thumbtack is strong enough to securely hold materials.

Thumbtacks are usually made with metal points and plastic or metal heads. Despite their small size, they are sharp and sturdy, making them reliable for various tasks. You can also find thumbtacks in various colors and designs.

A Small Safety Pin

A small safety pin typically measures around 2 cm when closed. These pins are incredibly versatile and are often used for fastening fabrics. You can also use them for fixing minor clothing mishaps or holding small items together.

When you measure a safety pin, the 2 cm length is noticeable from end to end. Despite being small, safety pins are strong and durable, thanks to their metal construction. Their size allows them to perform tasks (without adding bulk).

Safety pins are commonly used in sewing and crafts. Their 2 cm length is ideal for temporary fixes or delicate tasks.

Sewing Needle

A standard sewing needle can measure as little as 2 cm, especially those designed for fine or detailed work. These small needles are perfect for hand-sewing tasks, like stitching buttons or repairing fabric tears. Their slim and precise design makes them essential tools for crafters.

When you hold a sewing needle, you’ll notice its 2 cm length is easy to manage. Needles of this size are often used with lightweight threads and fabrics. The small size ensures the needle can pass through the fabric smoothly without causing damage.

Despite being only 2 cm long, these needles are incredibly strong and sharp. You can also use them for embroidery.

A 100-Page Notepad

The thickness of a 100-page notepad is roughly 2 cm. This measurement varies slightly depending on two things:

• The paper quality
• Type.

Still, it’s a great way to visualize this length. If you have a small notepad handy, it’s an easy reference point for 2 cm.

Notepads with this thickness are common in offices, classrooms, and homes. Their compact size ensures they can fit into bags, desks, or drawers.

A LEGO Brick Width

A standard LEGO brick is about 2 cm wide. These small, colorful blocks are a favorite toy for kids and a creative tool for adults. Their precise dimensions make them easy to connect and build with.

LEGO bricks are designed with uniformity, which is why their 2 cm width works seamlessly with other LEGO pieces. This consistency is key to creating everything (from small sculptures to massive builds).

Their 2 cm width is also why LEGO bricks are easy to store and sort. They’re compact but not so small that they’re difficult to work with.

A Drill Bit

The diameter of a small drill bit is often close to 2 cm. Drill bits of this size are used for precision work, like making holes in wood, plastic, or metal. Their small size makes them ideal for detailed tasks.

When you look at a 2 cm drill bit, you’ll notice how slim and sharp it is. This size ensures it can create clean, precise holes (without cracking or damaging the material).

These drill bits are often found in toolkits for both professionals and DIY enthusiasts. Their 2 cm size is versatile enough for tasks like:

• Assembling furniture
• Installing hardware
• Crafting projects.

The small diameter of a 2 cm drill bit also makes it easy to control, even for beginners. It’s a great tool for anyone working on projects that require accuracy and precision.

The Thickness of a Smartphone Case

The thickness of a standard smartphone case is approximately 2 cm. Smartphone cases are designed to be thin enough to fit in your pocket while still providing reliable protection.

Many cases with this thickness also include features like raised edges to shield the screen and cutouts for easy access to ports. The 2 cm size maintains a balance between style and functionality.

An Aspirin Tablet

An aspirin tablet is a surprisingly common object that’s about 2 cm in diameter. That’s why these small, round pills are easy to swallow. This also makes it manageable for people of all ages, from kids to adults.

Aspirin tablets are often stored in small bottles or blister packs. They take up minimal space in medicine cabinets or travel bags, and their consistent 2 cm size ensures they’re easy to handle.

A Smartwatch Strap Pin

The pin used to attach a smartwatch strap to the watch itself is usually around 2 cm long. It’s a vital component, as it keeps the strap securely connected. You can also make easy adjustments or replacements because of this pin. The 2 cm length ensures they fit snugly into the watch’s lugs, providing stability.

These pins are durable as they have to withstand constant movement and pressure. Changing a strap pin is simple thanks to its small size and user-friendly design. Many smartwatch owners keep spare pins handy because they’re essential for maintaining the strap’s functionality.

Half of a Golf Ball

Half of a standard golf ball is roughly 2 cm tall when cut in half from top to bottom. Golf balls are compact and durable, and their size makes them a great example.

Golf balls have a tough outer shell to withstand high impacts, and even a half-sized piece retains its strength. This small size plays a big role in the ball’s performance, ensuring precision and control on the course.

A Piano Key Cover Cap

The small plastic caps that cover the ends of piano keys are about 2 cm in width. These caps protect the edges of the keys and provide a smooth surface for playing. 

Piano key cover caps are often made of durable plastic or synthetic materials. Their small size helps them remain lightweight, which is important for the “responsive feel.”

This 2 cm width also ensures uniformity across the piano. That’s all.

Thinking about size comparisons? How about you compare 2 cm with 2 inches? It’s fascinating. Check out fun objects that are 2 inches long.

Final Words

Now you know how big 2 cm is with these relatable examples. Here’s a recap:

• A pencil eraser and a small button are perfect 2 cm references.
• Dice sides, Skittles, and SD cards are also great examples.
• Items like a thumbtack or large peanut give more fun ways to imagine 2 cm.
• Everyday objects make understanding measurements easy and relatable.

With this guide, you’ll never have to guess what 2 centimeters looks like again.