The best way to do determine the area is to divide your turf into several squares, rectangles, or circles (Figure 1). Calculate the area of these smaller shapes and then add them together to determine the total size of the turf.
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| Figure 1. Common shapes and how to calculate their area. |
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| Figure 2. An example property with dimensions for its lawn, hardscape, landscape, and house. |
Area Calculation Example
This example illustrates how you might calculate the area of your lawn. The measurements for this example come from Figure 2.
In this example, the easiest method is to calculate the total area of the property, and then subtract the hard surfaces from that to get the total area of the lawn.
Section of Property | Calculation | Area (square feet) |
| Total land | ((90 ft + 60 ft)/2) x 80 ft | 6,000 |
| House | 50 feet x 25 feet | 1,250 |
| Driveway | 15 feet x 40 feet | 600 |
| Porch | 8 feet x 12 ft | 96 |
| Mulch 1 | 10 feet x 5 feet | 50 |
| Mulch 2 | 25 feet x 5 feet | 125 |
| Mulch 3 | 3.14 x 82 x 0.25 (mulch bed is a quarter circle) | 50 |
| Mulch 4 | 3.14 x 82 x 0.25 (mulch bed is a quarter circle) | 50 |
| Total area of objects | 2,221 | |
| Total turf area | (6,000 square feet – 2,221 square feet) | 3,779 |
The total turfgrass area of the lawn is 3,779 square feet.
Turf professionals often use specialty programs, software, or commercial services to help in calculating your lawn's area down to the square foot. Technology has also made this a little easier as various online maps can also be used to estimate your lawn's area. If you are computer savvy, then using Bing or Google maps and measuring tools you can also get an accurate measurement. If you are not computer savvy, then measuring your lawn area the old fashion way as described above will probably be just as quick and possibly easier.
Aaron Patton, Turfgrass Extension Specialist
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