Ever wonder how long is 20 inches?
Many of us know the measurements but can’t picture them.
We get confused while figuring out if 20 inches is big, small, or in between.
How long is 20 inches, it’s one of the measurements that comes up when you’re shopping online, working on home projects, or talking about hair length.
How long is 20 inches, it’s 1 foot and 8 inches, or 50.8 centimeters.
To help you visualize it, think about the length from your elbow to your fingertips or imagine a large pizza’s diameter, a necklace that hangs to the mid-chest, or hair that reaches the lower back.
These everyday items give you an image without a ruler.
Here in this post, we’ll look at 17 common objects that will tell you how long is 20 inches, see how this length compares to the human body, and give you conversion charts.
How long is 20 inches compared to an object? (17 Real Life Considerations)
When we talk about 20 inches, it helps to think about stuff we see every day.
These 17 examples of how long is 20 inches will make it easy to picture this length without needing a measuring tape.
Width of Large Pizza Box
Many large pizza boxes measure about 20 inches across.
That’s why they sometimes don’t fit in your fridge so well.
Pizza places use different sizes, with some “extra large” pizzas going up to 24 inches, while others say an 18-inch pizza is “large.”
But 20 inches is standard for a large pizza at many popular chains according to restaurant companies.
Youth Baseball Bat
Youth baseball bats are perfect for visualizing 20 inches.
These bats designed for kids between 7-10 years old measure around 20 inches in length.
What makes them a good reference is that they’re designed to be a standard size, and they’re common in homes with kids.
Oven Rack
A standard oven rack in most home ovens measures close to 20 inches in width.
This makes sense when you think about it, it needs to be wide to hold your baking sheets and casserole dishes.
Keep in mind that compact ovens have small racks, and professional or commercial ovens have large ones.
Picture Frame
A poster frame or medium-large wall frame measures 16×20 inches or 20×24 inches, making the 20-inch side a reference.
Picture frames are great because they’re designed to measurements, they need to fit standard photo sizes.
Also, they have straight edges that make it easy to see what 20 inches looks like.
Height of Two Soda Bottles
Take two 2-liter soda bottles and place them end to end and together, they’ll measure almost 20 inches.
A standard 2-liter bottle is about 10-11 inches tall, so two of them together is 20 inches.
What’s nice about this example is that soda bottles are the same size no matter what brand you buy.
Two-Letter Paper
Take two standard US letter papers and place them end to end along the 11-inch sides.
You’ll get 22 inches, which is close to 20 inches, a bit long or place them with an overlap of about 2 inches, and you’ve got 20 inches.
Yoga Mat
Many yoga mats are about 68-72 inches long, but their width is around 20 inches.
This makes them perfect for visualizing this measurement.
Yoga mats are designed to be wide for comfortable movement.
If you’re trying to measure something which is about 20 inches, lay it across the width of a yoga mat.
Width of Carry-On Suitcase
The standard height for many carry-on suitcases is about 20 inches.
Next time you’re packing for a trip, remember that the height of your carry-on is giving you a perfect reference for 20 inches.
But keep in mind that some carry-ons can be 18 inches, but others can go up to 22 inches.
Diameter of a Car Wheel
Car wheels commonly come in sizes ranging from 15 to 22 inches in diameter.
A 20-inch wheel is considered a large rim size, seen on SUVs and luxury vehicles.
If you’re standing next to a car with 20-inch wheels, you’re looking at our target measurement.
Two iPads
The standard iPad is about 9.7 inches tall. Place two iPads end to end, and you get about 19.4 inches which is close to 20 inches.
The new iPad Pro 12.9-inch models give you more than 20 inches when placed side by side.
Tablets are manufactured to their advertised dimensions, so they provide an accurate reference.
House Cat
From nose to base of tail, the average adult domestic cat measures about 18-20 inches.
This doesn’t include their tail length, only their body.
Cats come in different sizes, some breeds like Maine Coons are large, while others like Singapuras are small.
The body length gives you an approximation of 20 inches.
Houseplants Pots
Large decorative plant pots have diameters around 20 inches.
These pots are designed for substantial indoor plants like fiddle leaf figs, large palms, or monstera plants.
If you have big houseplants, measure across the top of the pot, many are at that 20-inch.
Fold Standard Bath Towel
A standard bath towel measures about 30×56 inches when flat.
Fold it in thirds along its length, and it is about 30×18.7 inches which is close to 20 inches in one dimension.
Bath towels can vary by manufacturer, but this standard size is what you’ll find in homes.
From Elbow to Fingertips
For adults, the measurement from your elbow to the tip of your middle finger is 18-20 inches.
While it varies from person to person based on height and arm length, for average-height adults, this forearm-to-fingertip length is close to 20 inches.
Belt Size
If you wear around a size 34-36 in pants, your belt is close to 20 inches when measured from the buckle to the middle hole.
Belts run a few inches larger than your waist size to accommodate the overlap needed for buckling.
This makes a medium to large men’s belt another reference for visualizing 20 inches.
Hair Length
Hair that measures 20 inches is long to reach the mid-back or waist on most people.
Hair stylists and people who donate hair are very familiar with this measurement.
20-inch hair extensions are considered long and dramatic.
If you or someone you know has hair that reaches down to the lower back area, it is around 20 inches.
A Necklace
A 20-inch necklace falls at the collarbone or below it on most adults.
Jewelry designers create necklaces in standard lengths, with 20 inches being a common option that works well with many outfits and necklines.
It’s longer than a choker but shorter than a matinee style.
How big is 20 inches compared to a human?
To understand how 20 inches relates to the human body, let’s look at a few comparisons:
- it’s about the height of a 6-7 month old baby
- it’s the width of an adult’s shoulders
- it’s the circumference of an average adult’s head
- it’s about the length from your elbow to your fingertips
- it’s around the length from your shoulder to the opposite hip
These body comparisons help us understand that 20 inches is a length.
Conversion of 20 Inches to Other Measurements
When working with measurements, it’s helpful to know how to convert between systems.
Here’s how 20 inches translates to other common units:
| Measurement Unit | Equivalent to 20 Inches |
| Feet | 1.6667 feet (1 foot, 8 inches) |
| Yards | 0.5556 yards |
| Centimeters | 50.8 centimeters |
| Meters | 0.508 meters |
| Millimeters | 508 millimeters |
Remembering that 20 inches equals about 50.8 centimeters or over 1½ feet gives you a conversion for everyday situations.
Conclusion
Now you know how long is 20 inches, whether you visualize a large pizza, the width of a yoga mat, or the length from your elbow to your fingertips, you have many everyday references to help you visualize this measurement.
The next time you need to estimate if something is about 20 inches long, you won’t need to search for a ruler.
Think about these common objects, or use your forearm as a handy measuring tool.
These comparisons make measurements come alive in the real world.
Instead of being a number, 20 inches becomes something you can see and understand in your daily life from the cat to the picture frame.
