Measure any yard from satellite in under two minutes. No app, no tape measure, no sign-up — just type your address and draw your lawn. Accurate to within ±2%.
A tape measure works fine if your lawn is a perfect rectangle. The problem: almost no lawn is. You have curved beds, a kidney-shaped patio, an L-shaped strip down the side of the house, maybe a peninsula of grass cutting between the driveway and the front walk. A tape measure of an irregular lawn is typically ±5–10% off. That's the difference between buying one bag of fertilizer too few or three bags too many.
A satellite lawn measuring tool sees the whole shape from overhead and calculates the area of any polygon — odd shapes, multiple sections, holes for flower beds — in seconds. It also handles sloped lawns better, because the geometry is calculated, not paced.
| Method | Time | Accuracy | Cost |
|---|---|---|---|
| Measure Lawn (satellite) | ~2 min | ±2% | Free |
| Tape measure | 20–40 min | ±5–10% | $10 (tape) |
| Measuring wheel | 15–25 min | ±5% | $30–60 |
| GPS lawn measuring app | 10–20 min (walk perimeter) | ±5–8% | Free–$5 |
| Hire a surveyor | Days | ±0.1% | $300+ |
1Type your address. Satellite imagery loads automatically and zooms to your property.
2Outline the lawn. Click points around the edge of your grass. Snap to the parcel boundary if you have one.
3Subtract non-grass areas. Click around buildings, driveways, flower beds, pools, patios. The tool cuts each one out of the lawn.
4Get your number. Final lawn square footage appears instantly. Optionally generate a personalized care calendar with exact product quantities for your size.
Ready to measure?
Start Measuring — FreeFertilizer bags list coverage in square feet. If you guess your lawn size, you guess wrong — and either burn your grass with too much nitrogen or starve it with too little. See how much fertilizer you actually need for the math.
Seeding rates depend on grass type and whether you're overseeding or starting from scratch. Without a measurement, you're flying blind.
Most lawn products sell coverage by area. Once you know your number, our pre-emergent timing guide tells you exactly when to apply.
After measuring, Measure Lawn builds you a free month-by-month plan tailored to your grass type, climate zone, and lawn size — with the exact product quantities (no "1 bag should do it" nonsense).
How accurate is an online lawn measuring tool?
Measure Lawn uses high-resolution satellite imagery (10–15 cm/pixel where available) and gives ±2% accuracy on typical residential lawns. That's easily good enough for product buying. A tape measure on an irregular lawn is usually ±5–10% off.
Is the lawn measuring tool really free?
Yes. No sign-up, no app, no trial, no paywall. We make money through optional Amazon affiliate links inside the lawn care plan you can generate after measuring.
Do I need to download an app?
No. The tool runs in any modern browser on phone, tablet, or desktop.
Can I subtract my driveway, beds, and pool?
Yes. After drawing your overall property outline, the tool walks you through carving out non-grass areas — buildings, driveways, sidewalks, patios, decking, flower beds, pools, and anything else paved or planted.
How long does measuring take?
Under 2 minutes for most lawns.
Will I be asked for my email?
No. Measuring works without an account. An optional account lets you save and reopen plans, but is never required to use the tool.
How to measure your lawn (5 free methods)
Open the lawn calculator
What grass type do I have?
Lawn care calendar by month