// multi-utility computation suite · offline · instant · precise
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eng.combine-harvester-capacity Calculator
Calculates combine harvester theoretical field capacity from header width, operating speed, and field efficiency. Actual combine capacity is 65–80% of theoretical due to turning, field obstacles, and grain tank filling time — header width is the primary capacity driver.
Inputs
Cutting Width M
Horizontal extent perpendicular to the length.
Forward Speed Km H
Rate of movement. 1 m/s = 3.6 km/h = 2.237 mph.
Grain Yield T Ha
Reference formula or conversion factor shown for context.
Field Efficiency Pct
Useful output divided by total input, as a percentage. 100% is impossible due to losses (heat, friction, resistance).
Results
field capacity (ha/hr)
Reference formula or conversion factor shown for context.
grain throughput (t/hr)
Amount of work completed per unit time — requests per second, MB/s, or transactions per second.
daily capacity (ha/day, 10hr)
Reference formula or conversion factor shown for context.
effective field capacity = W×V×FE/10
Reference formula or conversion factor shown for context.
field efficiency range
Useful output divided by total input, as a percentage. True 100% efficiency is impossible — losses appear as heat. LEDs: 30–50%. Electric motors: 85–97%. Switching supplies: 85–95%.