Grain Bin Calculator
Precision grain storage calculator for farmers - measure bin capacity in bushels/tonnage by dimensions and grain type. Essential for harvest planning.
What Is It?
The Grain Bin Calculator is a digital tool designed to help agricultural professionals accurately estimate storage capacity for various grain types. By inputting simple measurements (diameter/width, length, and height) and selecting your grain type, it calculates:
- Storage volume in cubic feet
- Capacity in bushels
- Estimated weight in pounds
How To Use
- Select Bin Shape: Choose between round or rectangular bins
- Enter Dimensions:
- For round bins: Diameter (ft)
- For rectangular bins: Length × Width (ft)
- Height (ft) for all bin types
- Select Grain Type: Choose from corn, wheat, soybeans, barley, or oats
- Calculate: View instant results showing volume, bushels, and weight
FAQs
Q: How accurate are the calculations?
A: Results are industry-standard estimates (±2% variance) based on USDA conversion factors. Actual capacity may vary slightly with bin design.
Q: Why are there different calculations for round vs. rectangular bins?
A: Round bins use πr²h formula with 1.25 ft³/bu conversion, while rectangular bins use L×W×H with 1.244 ft³/bu - accounting for packing efficiency differences.
Q: Can I calculate partial fills?
A: Yes - simply enter the actual grain height rather than the bin’s full height.
Q: What about tapered bins?
A: Current version calculates straight-walled bins. For tapered bottoms, use the height measurement to the point where walls become vertical.
Technical Notes
- Bushel weights: Corn (56 lb), Wheat (60 lb), Soybeans (60 lb), Barley (48 lb), Oats (32 lb)
- Volume-to-bushel conversion factors follow ASABE standards
- All dimensions should be measured in feet for accurate results