Food · #961 biggest of 1,014
How big is a grain of rice?
7 mm
A grain of rice measures 7 mm. That's about 100 human-hair widths lined up end to end.
By the numbers
- That's 7 mm across — roughly the width of a few human hairs.
- You'd need about 243 of them stacked up to reach the height of an average adult.
- Roughly 100 human-hair widths could line up across it.
- Out of all 1,014 things in this collection, it ranks #961 by size.
Size comparison
How grain of rice stacks up against things of a similar size. Tap any bar to explore it.
pea
8.0 mm
pearl
8.0 mm
housefly
7.0 mm
grain of rice
7.0 mm
grain of rice
7.0 mm
sapphire ring stone
7.0 mm
1-carat diamond
6.5 mm
garnet
6.0 mm
ant
5.0 mm
Bars use a logarithmic scale so everything fits — real differences are even more extreme!
Fun fact
It's so small that about 0.143 of them would fit across a single millimeter.
More in Food
Tip: swipe, use the arrow keys, or scroll past the edge to jump between sizes.