How long is 4 cm?
It can be tough to picture a specific length like 4 cm in your head. To make it easier, our guide shows you how 4 cm stacks up against hundreds of familiar objects, from everyday items to famous landmarks. See the size of 4 centimeters in a way that makes sense.
4 cm in other units
- Convert 4 cm to in = 1.574803 in
- Convert 4 cm to ft = 0.131234 ft
- Convert 4 cm to km = 0.00004 km
- Convert 4 cm to m = 0.04 m
- Convert 4 cm to mm = 40 mm
Visualizing 4 cm: Real-World comparisons
Ping Pong ball (diameter): 4 cm
They're virtually the same length—it's tough to see a difference.
Golf ball (diameter): 4.27 cm
This item is longer—4 cm falls short by about 6%.
Standard paperclip: 4.4 cm
4 cm comes up about 9% short of this item's full length.
AA Battery (length): 5.05 cm
This item is longer; 4 cm measures about 21% less.
Credit card (width): 5.4 cm
4 cm is about 26% shorter than this item.
CD/DVD (diameter): 12 cm
This item is much bigger—4 cm is just one-3th of its size.
Stick of butter (length): 12.1 cm
Picture this item split into 3 equal parts; 4 cm is the length of one of those parts.
Soda can (height): 12.3 cm
You could fit about 3 measurements of 4 cm inside this single item.
Large egg (length): 6.1 cm
To match this item's length, 4 cm would need to be 34% longer.
US Dollar bill (width): 6.6 cm
This item is longer—4 cm falls short by about 39%.