Find out exactly how big your lawn is. Use the satellite tool below for a precise measurement, or enter your square footage manually to see product estimates.
Free instant results · No signup required
Enter your lawn area below to see how much product you need. For a more precise number, use the satellite tool above to measure your actual grass area.
Most lawn care products are dosed per 1,000 square feet. Apply too little fertilizer and you get patchy results. Apply too much and you risk burning your grass or contaminating groundwater. The same goes for grass seed, weed killer, and grub control — the bag tells you how much to use per 1,000 sq ft, but that only works if you know your lawn size.
Your lawn area is not the same as your lot size. A typical suburban lot might be 8,000 square feet, but after subtracting the house footprint, driveway, walkways, patio, and garden beds, the actual grass area could be 4,000–5,000 square feet. That difference means buying 40% less product than you would if you used the lot size.
LotSite solves this by letting you paint your lawn on satellite imagery. Instead of guessing, you select just the grass areas and get a precise square footage. The number accounts for the actual shape of your lawn — including curves, islands, and irregular edges — not just a rough rectangle estimate.
Townhouse / Condo
500–2,000 sq ft
Small Suburban Home
2,000–4,000 sq ft
Average Suburban Home
4,000–8,000 sq ft
Large Suburban Home
8,000–15,000 sq ft
Rural Property (1 acre)
20,000–35,000 sq ft
Rural Property (2+ acres)
40,000+ sq ft
These are lawn (grass) areas, not total lot size. Your actual lawn size depends on how much of your lot is covered by structures, hardscape, and landscaping.
The fastest way to measure your lawn is to enter your address on LotSite. We pull your property boundary from county records and overlay it on satellite imagery. Then you paint the grass areas on the map — LotSite calculates the square footage automatically.
If you prefer a manual approach, break your yard into simple shapes. Measure length and width for rectangles, or base and height for triangles. Multiply, then add up all the sections. For circles (like a round garden bed to subtract), use the formula: area = 3.14 × radius × radius.
For a detailed walkthrough of every measurement method, see our complete property measurement guide.
Enter your address and paint your lawn on the satellite map — exact square footage in seconds.