Grain Bin Calculator
About Grain Bin Calculations
This calculator estimates storage capacity based on standard agricultural measurements. Actual capacity may vary based on bin design and grain compaction.
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