Lawn Mowing Time Estimator
Calculate the estimated time to mow your lawn based on its area, your mower's cutting width, walking speed, and overlap between passes.
Formula
1. Effective Cutting Width (ft)
effectiveWidth = (cuttingWidth_in × (1 − overlap% / 100)) / 12
2. Total Distance to Cover (ft)
totalDistance = lawnArea_sqft / effectiveWidth_ft
3. Mowing Speed (ft/min)
speed_ft_per_min = speed_mph × 88
(1 mph = 5,280 ft / 60 min = 88 ft/min)
4. Pure Mowing Time (min)
mowingTime = totalDistance / speed_ft_per_min
5. Number of Passes
passes = ⌈ √(lawnArea) / effectiveWidth ⌉
(assumes approximately square lawn)
6. Turn Time (min)
turnTime = (passes × turnTime_sec) / 60
7. Obstacle Time (min)
obstacleTime = (obstacles × timePerObstacle_sec) / 60
8. Total Time (min)
totalTime = mowingTime + turnTime + obstacleTime