Lawn Size Calculator + GPS

How big is your lawn? Trace it on the satellite map, take out the house, and get the fertilizer, seed and sod to buy.

Tools 0+ downloads

Free Contains ads In-app purchases

Every bag of lawn fertilizer says how many square feet it covers. This app tells you how many your lawn has.

Trace the lawn on the satellite photo, then draw the house, the driveway and the flower beds as holes: the app takes them out and gives you the square footage of grass you actually feed, seed and mow. Front yard and back yard add up. Or walk the edge with GPS, with the accuracy shown as a ± figure.

Lawn Calc turns that area into what to buy: lawn fertilizer, grass seed, lime, sod rolls and topdressing, from the rate printed on your bag, in pounds per 1,000 square feet or in grams per square metre. Enter your own prices for a total; the app never invents a price and never tells you which product to buy. Export a PDF, measure again next spring and compare. No account, no subscription: a single purchase removes ads.

Key features

Trace it on the photo

Tap the corners of the lawn on the satellite map, from the couch. Drag them under a magnifier.

Take out the house

Draw the house, the driveway, the patio and the beds as holes: what is left is grass.

Front and back

Add another area and the total adds up. Or walk the edge with GPS.

What to buy

Lawn fertilizer, grass seed, lime, sod rolls and topdressing, in pounds and bags.

Rates like the bag

lb per 1,000 sq ft, like every label, or g/m². Your bag size, your price.

No account

Nothing to sign in to, no subscription, and your lawn never leaves your phone.

See it in action

Ready to play?

Download Lawn Size Calculator + GPS for free on Google Play.