Depends On How You Measure It.

Standard Farming Capacities
 

Storage Capacity

Grain bin capacity (bushels)
   bushels = cubic feet x .8
   cubic feet = bushels x 1.25

Corn crib capacity (bushels)
   bushels = cubic feet x .4
   cubic feet = bushels x 2.50

Estimating Grain and Roughage Volumes

1. Shelled corn, soybeans and other grains (bushels)
Round bin: diameter x diameter x average depth x .628 (all in feet)
Rectangular bin: length x width x average depth x .8 (all in feet)

2. Ear corn (bushels)
Round crib: distance around crib x diameter x\ depth x .1 (all in feet)
Rectangular crib: length x width x depth x .4 (all in feet)

3. Hay (tons): length x width x height ÷ 500 (all in feet)

4. Straw (tons): length x width x height ÷ 1,000 (all in feet)

5. Corn silage (tons at 65 percent moisture):
a. Upright silo (tons):
Height	Diameter (ft.)
(ft.)	18	20	22	24	30
40	202	249	300	356	557
50	227	342	416	493	771
60	361	445	538	638	1,000
70				790	1,235
80				949	1,478
b. Bunker silo (tons per feet of length):
Bottom width (ft.)	Depth (ft.)
	8	10	12	16	20
20	3.5	4.5	5.5
30	5.0	6.5	7.9	10.9
40	6.6	8.5	10.3	14.1	18.0
50	8.2	10.5	12.7	17.3	22.0
60		12.5	15.1	20.5	26.0
70			17.5	23.7	30.0
80			19.9	26.9	34.0
100				33.3	42.0
For haylage at 50 percent moisture multiply by .715

Test Weight

		Approximate weight in pounds
Commodity	Unit
Alfalfa seed	bu.	60
Barley	bu.	48
Beans, dry	bu.	60
Beans, lima	bu.	56
Beans, snap	bu.	30
Bluegrass seed	bu.	14-30
Buckwheat	bu.	43-52
Clover seed	bu.	60
Corn, ear (husked)	bu.	70
Corn, shelled	bu.	56
Cotton	bale, gross	500
	bale, net	478
Cottonseed	bu.	32
Flaxseed	bu.	56
Grain sorghums	bu.	56
Lentils	bu.	60
Milk	gal.	8.6
Millet	bu.	48-50
Milo	bu.	56
Mustard seed	bu.	58-60
Oats	bu.	32
Orchard grass seed	bu.	14
Peas, dry	bu.	60
Rice, rough	bu.	45
Rice, rough	bag	100
Rye	bu.	56
Soybeans	bu.	60
Sudangrass seed	bu.	40
Sweet potatoes	bu.	55
Timothy seed	bu.	45
Wheat	bu.	60

 

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