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Plan how long your mowing job will take using lawn square footage, mower deck width, typical ground speed, and realistic field efficiency for overlap and turns. Add a buffer for trimming and cleanup.
Last updated: April 17, 2026
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Overlap, turns, obstacles, and trim passes.
Mowing Time
7.7 min
Total Time
17.7 min
Total (hours):
0.29 hr
Effective coverage:
1039.50 sq ft/min
Planning Notes:
Basis
Width × speed
Real-world factor
60% to 100%
Total time
Mow + buffer
Example: 8,000 sq ft, 42 in deck, 4.5 mph, 75% efficiency, 10 min buffer:
17.7 minutes total
The calculator converts mower deck width to feet, multiplies by feet traveled per minute from your mowing speed, and estimates effective square feet per minute after applying field efficiency. Lawn area divided by that rate yields mowing minutes, and your buffer minutes are added for a realistic total job time.
Feet per minute = mph × 88Sq ft per minute = (deck inches / 12) × feet per minute × efficiencyThe factor 88 comes from 5,280 feet per mile divided by 60 minutes per hour.
Effective coverage: 1039.50 sq ft/min
7.7 min mowing
Total with buffer: 17.7 min (0.29 hr)
Share it with homeowners and lawn crews estimating mowing time.
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