Free tool
Lawn Area Calculator
Get your yard's square footage in seconds. Add multiple shapes to cover L-shaped or split lawns, and use the total as an input for the fertilizer, seed, mulch, and watering calculators below.
Area 1
Total area
1,500 sq ft
In acres
0.034 acres
How this is calculated
Rectangles use length × width. Circles use π × radius². Triangles use 0.5 × base × height. Add as many shapes as you need — the calculator sums them into one total, which you can carry over into any of the other tools.