Acres Per Hour Calculator
Free acres per hour calculator for farmers, landscapers, and contractors. Estimate how many acres your equipment can cover per hour based on implement width, travel speed, and field efficiency, and figure out how long a job will take.
How to Calculate Acres Per Hour
The formula is: Acres per Hour = (Width in feet x Speed in mph x Efficiency) divided by 8.25. The 8.25 constant comes from 43,560 square feet per acre divided by 5,280 feet per mile.
Inputs
- Machine Type: tractor, combine, sprayer, mower, plow, seeder, bush hog, field cultivator, or custom.
- Implement Width: effective working width in feet or meters.
- Travel Speed: average operating speed in mph or km per hour.
- Field Efficiency: 60 to 90 percent, or a custom value.
- Plot Area: optional acres or hectares to estimate time to complete.
Dedicated Calculators
- Mowing Acres Per Hour Calculator
- Bush Hog Acres Per Hour Calculator
- Tilling Acres Per Hour Calculator
- Spraying Acres Per Hour Calculator
- Harvesting Acres Per Hour Calculator
- Time to Mow Calculator
Typical Rates by Equipment
- Push mower: 0.10 to 0.15 acres per hour.
- Riding mower: 1.2 to 2.5 acres per hour.
- Zero-turn mower: 2.5 to 6 acres per hour.
- Bush hog or rotary cutter: 2 to 3.5 acres per hour.
- Field cultivator: 7 to 22 acres per hour.
- Large combine: 15 to 28 acres per hour.
- Self-propelled sprayer: 100 to 200 acres per hour.
Frequently Asked Questions
How do I calculate acres per hour? Use the formula (Width in feet x Speed in mph x Efficiency) divided by 8.25.
Where does 8.25 come from? From 43,560 square feet per acre divided by 5,280 feet per mile.
What field efficiency should I use? 80 to 85 percent for large rectangular fields, 70 to 75 percent for typical farms, 60 percent for small or irregular fields.
How long does it take to mow one acre? A 54-inch riding mower at 5 mph takes about 25 minutes; a push mower can take 90 minutes.
How do I convert acres per hour to hectares per hour? Multiply by 0.4047.