This grain bin calculator estimates the volume and weight of grain stored in a round bin using US Bushels (also known as Winchester Bushels).
π(D/2)²H
The bushel is a volume measurement and a unit of weight used with various commodities. The United States uses the Winchester bushel, which has a volume equal to 1.244456 cubic feet. In comparison, Canada uses the Imperial ( Avery) bushel, which has a slightly larger volume of 1.284349 cubic feet.
The weight of a bushel is a measure of the grain's density, usually expressed in pounds per bushel (lb/bu) and kilograms per hectolitre (kg/hL).
π(D/2)²H/3
where π = 3.141593 D = diameter H = height
one bushel (bu) US = 1.245 cubic feet (ft³) one cubic foot (ft³) = 0.8036 bushels (bu) US one pound (lb) = 0.0004114 short tons (tn short) one pound (lb ) = 0.00045359237 metric tonnes (t)
Bin height 30 feet diameter is 40 feet roof slope is 0 degrees (level) the grain type is wheat @ 60 lbs per bushel
Calculate the volume of the bin;
3.141593 * (40 ÷ 2) ² * 30 3.141593 * 400 * 30 = 37699
This grain bin has a volume of 37699 cubic feet.
Calculate the capacity by multiplying the cubic feet by 0.8036;
37699 * 0.8036 = 30295 (rounded up)
This bin can hold 30295 US bushels. (Winchester measure)
Multiply the number of bushels by the bushel weight of 60 lbs
30295 * 60 = 1817695 (rounded up)
This bin can hold 1817695 pounds of wheat.
Convert the pounds to metric tonnes by multiplying by 0.00045359237;
1817695 * 0.00045359237 = 824.49258298715
This bin can hold 824.49 metric tonnes of wheat.
This tool simplifies determining storage capacity and grain weight in US bushels, specifically Winchester Bushels. It offers both imperial and metric results for versatility.