turf calculator

Avoid the dreaded "oops, we ran out of grass" or "uh-oh, we've got too much turf" surprises! Follow these simple steps to get your turf measurements right the first time.

how much grass do i need?

option A: Google Maps

  1. Head to Goole Maps and use their easy Measuring Tool to get an
    accurate measurement of your space. Add 10% for contingency.

  2. Not sure how to use Google Maps? No worries, check out our quick
    explainer video here for a quick how-to, it’ll only take a minute!

Check out our Google Maps tutorial here.

option b: old school style - measure by hand

  1. Sketch it: create a rough yard sketch.

  2. Shape it up: break down complex areas into simple shapes.

  3. Measure up: use the calculations below to determine your turf requirements, add them up, and voila! You've got your precise turf measurements. But just in case, we suggest adding an extra 10% for contingency.

  4. More of the paper and pen type? Check out the downloadable PDF version below the measurements.

Square / Rectangle:
Length x width = m2
e.g. 5m x 5m = 25m2

Circle:
(Radius x radius) x 3.14 = m2
e.g. (3m x 3m) x 3.14 = 28.26m2

Semi-circle:
Circle calculations (left) / 2 = m2
e.g. 28.26m2 / 2 = 14.13m2

Triangle:
(Length x width) / 2 = m2
e.g. (10m x 5m) / 2 = 25m2

Unusual Shapes:
Sketch your yard, break it into shapes and use shape calculations above.
e.g. rectangle + square + triangle = m2

Varying Widths:

  1. Measure the longest edge (length)

  2. Divide the widths into 2m sections and measure (width 1, 2, 3, etc.)

  3. Calculate (width 1 + width 2 + width 3) / number of width sections

  4. Multiply by length

e.g. ((5m + 6m + 6m + 7m + 8m)/5) x 10m = 64m2

5. Add a few extra m2 per 100m2 as a buffer

A preview of our measuring up guide

prefer a print out?

Download a printable PDF version of our Measuring for Turf Guide, which includes calculations and examples, so you’ve got all the information in front of you when you’re measuring up.