Weighroo

How much does a cubic foot of Styrofoam weigh?

15.9 ozAbout 450 g · Pocket

About 1 lb (450 g). It's about 98% air.

That's as heavy as about 18,000 grains of rice.

15.9 oz
a cardinal

By weight: a cubic foot of Styrofoam is about 10× heavier than a cardinal.

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Things about the same weight

Many real things vary, so we use a typical or official figure. Spotted a mistake? Email [email protected].