# Online Calculator to Determine Lawn Mowing Time

Calculate the amount of time it will take the mow a lawn with this Lawn Mowing Time Calculator.

To find the find the time required to mow a yard use the following

equations:

_{w}x Efficiency x S )

S = Speed in Feet/Second

C_{w} = Cutting Width in Feet

(to convert inches to feet, divide the number of inches by 12 )

Area = Total lawn area to be mowed in square feet

( to convert square yards to square feet, multiply the number of square

yards by 9)

Cutting Efficiency = The effective amount of the cutting blade that is

actually cutting grass. The efficiency is a percentage, but should be

converted to decimal form for the equation. (75% = .75)

## Lawn Mowing Time Example

Example: The estimated amount of time required to mow a yard that is

550 square yards in area with a lawn mower with a 42" cutting width, at

a speed of 1.5 feet/second and an estimated cutting efficiency of 75%:

S = 1.5 feet/second

C_{w} = 42/12 = 3.5 feet

Cutting Efficiency = 75% = in decimal form is .75

Total area to be mowed = 550 square yards = 4950 square feet

Time Required = 4950 / (3.5 x .75 x 1.5)

Time Required = 1257.14 seconds, or 20.95 minutes (divide amount of

seconds by 60)
(Rounded to the nearest 100th)