Grain Bin Calculator

Estimate the bushel capacity of a round grain bin.

Bin diameter

Grain height

Capacity (bushels) 3,272.91

Volume 4,071.5

Formula: bushels = π r² h ÷ 1.244

Step-by-step with your numbers:

1. Values used:

2. Bin diameter = 18

3. Grain height = 16

5. Capacity = 3,272.91bushels

6. Volume = 4,071.5

Did we solve your problem today?

Estimate how many bushels of grain a cylindrical bin holds.

The math behind it

Volume = π × radius² × height; 1 bushel = 1.244 ft³.

18 ft diameter, 16 ft grain → ~3,273 bushels.

Cone bottom?

Add the cone volume (⅓ π r² × cone height) for a hopper bin.