15 Common Things That Are 12 Centimeters Long
Sometimes, we find ourselves in need of a quick measurement but lack a measuring tape or ruler. In those moments, gauging lengths by eye can be surprisingly tricky.
To make things easier, we’ve compiled a list of common items approximately 12 cm long. Whether you’re trying to figure out if something fits or just need a rough estimate, this article will help you use everyday objects as makeshift measuring tools.
Next time you face a measurement challenge, reach for one of these familiar items and get an instant sense of 12 cm. This practical guide turns ordinary objects into handy measurement aids, making your life just a bit simpler.
How long is 12 Centimeters?
12 centimeters is not a very long length, and it can be challenging to gauge without a proper measuring instrument or tape. It’s difficult to accurately understand how long 12 cm is when you’re just estimating by sight.
12 Centimeters in Different Units
12 Centimeters = 4.72 inches
12 Centimeters = 0.12 meters
12 Centimeters = 120 millimetersÂ
12 Centimeters = 0.13 Yards
12 Centimeters = 0.39 foots
Things that are 12 Centimeters long
Understanding the length of everyday objects can be surprisingly fascinating and useful. Here are 15 common items, each around 12 centimeters long, that you might encounter daily. This list will not only give you a sense of scale but also help you relate these objects to one another.
1. Beverage Can
In North America, a standard beverage can, like those used for soda or beer, is exactly 4.83 inches or 12.3 cm. Next time you reach for a refreshing drink, you’ll know the can you’re holding is just a bit longer than 12 centimeters. This common item is an excellent reference for visualizing lengths in the 12-centimeter range.
2. iPhone 8
Nowadays, smartphone sizes are increasing, and most new models are larger than 6.5 inches (almost 17 cm). However, a few years ago, smartphones typically measured between 5-6 inches, roughly 12-15 cm. One specific model that is exactly 12 cm in height is the iPhone 8.
Apple’s iPhone 8 is precisely 4.7 inches tall, which is 12 cm. Although the iPhone 8 Plus measures 5.5 inches (about 13-14 cm), the standard iPhone 8’s height makes it a perfect reference for 12 centimeters.
So, if you’re an iPhone user with an iPhone 8, you have an ideal tool for this comparison.
3. Teaspoon
A standard teaspoon typically measures between 13 and 14 centimeters. Although slightly longer than 12 centimeters, it’s a familiar kitchen tool that provides a close approximation.
The next time you’re baking or stirring your tea, think of the teaspoon’s length to understand similar measurements.
4. 3 Table Tennis Balls
Table tennis balls, also known as ping pong balls, are precisely 40 millimeters or 4 cm in diameter and 125.6 mm or 12.6 cm in circumference. These dimensions are standardized by international rules.
By considering the diameter of three ping pong balls or the circumference of one, you can visualize measurements close to the 12 cm mark. These lightweight balls, commonly used in a popular sport, are small and easy to picture.
5. 2 Dollar Bills (Width)
A US dollar bill is exactly 6.14 inches in width and 2.61 inches in height. Dollar bills, regardless of denomination, are all the same size. If we take two dollar bills and consider their combined height, we get a total length of 5.22 inches, which is nearly 13 cm.
This method gives us a good idea of how long 12 cm is. I personally love this method because it’s so accessible that you can easily use these notes to estimate the desired length.
6. 5 Paper Clips
Paper clips are common office supplies that you can easily find. Each standard paper clip is about 1 inch long, which is approximately 2.54 cm. By lining up five paper clips end to end, you can measure roughly 12 centimeters.
Next time you’re organizing papers, try this simple trick to get an idea of this measurement. This practical method not only helps you visualize lengths but also adds a fun twist to your daily office tasks.
7. 2 Tennis Balls
Tennis balls come in different sizes depending on the manufacturer and type. According to ITF regulations, a tennis ball should be 6.54-6.86 cm in diameter.
If we take two tennis balls and add up their diameters, the total length will be 13.08-13.72 cm. While this slightly exceeds the 12 cm mark, it still gives a good idea of how big 12 cm is.
8. 5 US Quarters
US Quarters are common coins that you can find in your pocket or wallet. The exact diameter of a US quarter is 0.955 inches, 24.26 millimeters, or 2.43 centimeters.
If we line up five quarters horizontally, their total length will be 121.30 millimeters or 12.13 centimeters. This is a great example of something that measures approximately 12 centimeters.
9. 2 Debit or Credit Cards
Credit and debit cards all have the same size and dimensions as specified by ISO. They are 3.375 inches (8.56 cm) wide and 2.125 inches (5.398 cm) high.
If we stack two standard cards height-wise, the total measurement is 10.8 centimeters. Since most people carry cards daily, this comparison is convenient and easy to understand.
10. 5 Hockey Pucks
Hockey pucks are widely recognized in sports, especially in the U.S. and Canada. Each Puck is about 3 inches or 7.62 cm in diameter and 1 inch or 2.54 cm thick.
Five hockey pucks were placed on top of the other, reaching around 12.7 centimeters, which almost comes up under the 12-centimeter mark and comes under our desired length. If you’re a hockey fan, this comparison will help you picture the length quickly.
11. Fist of a Young Child
If you’re a regular reader, you know that measuring with your hands is my favorite method because it’s so convenient. An average male fist is about 15-18 centimeters long, which is slightly out of our desired range.
Instead, we can use children’s fists, which are about 12-15 centimeters long. While children’s hands grow quickly, their fists provide a good reference for this length at a young age. If you have kids, you’ll find this comparison particularly relatable.
12. Ruler
If you have a ruler, you don’t need anything else to use it as a measuring tool. A standard small ruler, commonly used in school, is about 15 centimeters long. It has 15 major lines, each representing one centimeter, and between each centimeter, there are 10 smaller lines indicating millimeters.
If you focus on the first 12 major lines, they precisely measure 12 centimeters. Using a ruler allows you to accurately measure and compare lengths up to 12 centimeters.
13. 3-4 Almonds
Almonds are a healthy snack and a common kitchen staple. They are highly nutritious, and as a gym rat, I love them because they are packed with protein.
On average, almonds are about 3-4 centimeters in size. If we line up a few almonds vertically, they will give us an approximate length of 12 centimeters, which can be useful for comparing with items that are about 12 centimeters long.
14. A Standard Lip Balm Tube
You know that small ChapStick or lip balm tube you always find at the bottom of your bag or pocket? I measured mine one day just out of curiosity, and it came in at almost exactly 12 centimeters.
A standard lip balm tube like ChapStick measures around 7 to 8 cm in its capped form, but the most common full-size lip balm sticks, including the cap, measure right around 11.5 to 12 cm in total length. It is one of those objects that is so small and ordinary that you never think to measure it, but it turns out to be a surprisingly accurate 12 cm reference that almost everyone has somewhere nearby.
15. Three Matchsticks Lined Up End to End
I actually had a box of matches sitting right next to me on my desk when I was writing this, and I decided to measure them. Matchsticks come in a few different sizes, depending on their type and purpose, so let me break them down quickly so you know exactly which ones work for this reference.
Here are the common matchstick sizes you will find:
- Standard safety matchstick: 38 to 41.5 mm long (about 3.8 to 4.15 cm each)
- Regular strike anywhere matchstick: 57.2 mm long (about 5.7 cm each)
- Long BBQ or fireplace matchstick: 75 mm to 114 mm long (7.5 to 11.4 cm each)
So which size gets you closest to 12 cm?
Three standard safety matchsticks lined up end to end give you a total length of around 11.4 to 12.45 cm, depending on the exact brand. That puts them right in the 12 cm zone, making them one of the most precise and fun references on this list. The next time you grab a matchbox from your kitchen drawer, pull out three sticks, line them up on the table, and you will be looking at almost exactly 12 centimeters right in front of you.
Frequently Asked Questions About 12 Centimeters
Q1. How long is 12 centimeters in inches?
12 centimeters is equal to 4.72 inches. So if someone tells you something is 12 cm long, it is just a little under 5 inches. A good way to picture it is roughly the height of a standard beverage can or the length of five paper clips lined up end to end.
Q2. What is the easiest everyday object to use as a 12 cm reference?
In my personal experience, the easiest one is five US quarters lined up side by side. Each quarter is 2.43 cm in diameter, so five of them give you 12.15 cm, which is almost exactly 12 cm. Most people have quarters in their pockets or wallets at any given time, which makes this one of the most practical and accessible references on this list.
Q3. How do I measure 12 cm without a ruler?
Use your hand! An average adult male fist is about 8 to 9 cm wide. Just extend your index finger alongside it, and you will reach very close to 12 cm. Measure your own fist once with a ruler, and you will always have a reliable measuring tool right at hand.
Q4. Is 12 centimeters bigger than 5 inches?
No. 12 centimeters is equal to 4.72 inches, which is actually slightly less than 5 inches. Five inches converts to 12.7 centimeters, so 5 inches is about 0.7 cm longer than 12 cm. They are very close to each other, but 5 inches is just a tiny bit longer.
Q5. What common phone is 12 cm long?
The iPhone 8 is one of the most well-known phones that measures almost exactly 12 cm in height at 4.7 inches or 11.94 cm. It is one of the most precise phone references for this length because it sits so close to the 12 cm mark.
Conclusion:
Now you have 15 everyday objects that can help you picture exactly how long 12 centimeters is without ever needing a ruler. From the beverage can sitting in your fridge to the quarters in your wallet to the ping pong balls on your game table, 12 cm is all around you once you know what to look for.
I personally find the five quarters method the most useful because it is always accurate, and everyone has coins nearby. The iPhone 8 reference is also one I use a lot when talking to people who own that model, since it is an instant visual they already know well.
If you found this helpful and want to keep building your measurement knowledge, check out some of my other guides. I wrote about things that are 10 centimeters long and things that are 15 centimeters long, which are the two measurements closest to 12 cm on my site.
You can also check out things that are 5 centimeters long if you want to go smaller. Once you know a few reference points at different lengths, estimating measurements becomes second nature. Happy measuring!
