Mower deck width and speed decide how fast you cover ground. Add how cluttered the yard is for an honest time.
How it works
Acres per hour = deck width in feet × mph × field efficiency ÷ 8.25, the standard field capacity formula. Lawn acres ÷ that rate gives time.
Before you order
- Use your actual cut width. Wheels and overlap shave a little off the deck size.
- Mow in long passes and cut any odd corners last to keep turns down.
- A sharp blade lets you hold speed through thick grass.
Common questions
How long does it take to mow an acre?
About 2 hours with a 21 inch walk-behind at 3 mph and about 30 minutes with a 54 inch zero-turn, in open conditions.
Does a wider mower always save time?
In open yards, yes. In yards full of beds and trees a narrower deck often loses less time on turns.