Lawn Area Calculator
Measure your lawn in square metres by breaking it into simple shapes. Take away garden beds and paths, then save the area to your Lawn Journal.
Measure in metres. Add a shape for each part of the lawn, and mark garden beds or paths to take away.
Your lawn area
Enter measurements to see your lawn area.
How it works
Every rate on a product label is given per area, so the first step for any lawn job is knowing how big your lawn is. Measure each part of the lawn as a simple shape, add them up, and take away anything that isn’t grass. Once you have the number, save it to your Lawn Journal so the other calculators can use it.
Worked example
A backyard is a 12 m × 8 m rectangle (96 m²) with a 3 m wide half-circle on one end (3.5 m²). A 2 m × 1.5 m garden bed sits in the middle (3 m², subtracted). Lawn area: 96 + 3.5 − 3 = 96.5 m².
What you enter
- Shapes (rectangle, triangle, circle, half circle, trapezium) with measurements in metres
- Areas to subtract, such as garden beds and paths
What you get
- Total lawn area in m²
Assumptions
- Measurements are taken on the flat. Steep slopes have slightly more surface area than their measured footprint.
Questions
How accurate does my measurement need to be?
Within a few per cent is fine for working out product quantities. Pacing it out is usually close enough; a tape measure is better for small areas where the dose matters more.
My lawn is an odd shape. What do I do?
Break it into rectangles and triangles, add them together, and subtract beds and paths. Curved edges can be treated as half circles or trapeziums.
Can I draw my lawn on a map?
Not yet. Map drawing needs a licensed map provider, which is still to be chosen. For now, measure with shapes.