Matcher

Which robot mower fits your lawn?

Five questions. The matcher filters on hard limits first — coverage rating and maximum gradient — so a mower that physically can't do your lawn never appears in the results, no matter how well it scores.

1. How big is your lawn?

Measured in sq ft. Grass only — leave out beds, paths and the driveway.

2. What is the steepest part of the lawn? A 20% slope rises 20 ft over 100 ft — roughly the point where push mowing gets unpleasant.

3. What's usually left on the lawn?

4. Are you willing to bury a perimeter wire? A wire install takes a weekend but stays reliable under trees, where satellite navigation struggles.

5. How much tree cover is over the lawn?

Budget bracket (optional)

Our own four brackets, not Amazon prices. Tap through to any mower for what it actually costs today.

Your shortlist appears here.

How to read these numbers. Every specification here was taken from the product's own Amazon page on 2026-08-21 and normalised into the same units. A dash means the manufacturer does not publish that figure — we never estimate one to fill a table. We do not republish prices at all: Amazon changes them daily, so each mower shows the bracket we place it in and you tap through for the live figure.

How to measure your lawn properly

Almost every "the mower can't keep up" complaint traces back to a lawn that turned out to be bigger than the owner thought. Two approaches work well:

Satellite measurement. Open any mapping tool with an area measurement feature, trace the grass, and read off the area. Fastest and accurate enough.
Pace it out. Walk the length and the width in normal steps, count, and multiply by your stride length. Split an irregular lawn into rectangles and add them up.

Then add 15%. Manufacturer coverage ratings assume an open rectangle mown daily in dry conditions. A lawn with a tree in the middle, a narrow passage to the back garden, and a week of rain in June is meaningfully harder work than that.

Reading the gradient rating

Slope ratings are published as a percentage, not degrees, and the two are easy to confuse. A 45% slope is about 24 degrees. It is also a rating for dry grass: wet grass on the same bank can cut effective traction by a third. If your steepest section is close to a mower's rated limit, treat that model as out of range rather than borderline.

The full detail is in the slope guide.