All tools
Every tool works from your own lawn measurements and the manufacturer's published specs, and shows its sources.
Choosing and fit
- Boundary wire or wire-free? DeciderAnswer six questions about your garden and see which navigation suits it: boundary wire, RTK satellite, camera vision, LiDAR or a hybrid, with the reasons and the trade-offs.
- Lawn area calculatorMeasure your lawn in m² from simple shapes or points round the edge, across several zones, minus beds and patios. The figure every robot mower spec is rated against.
- Lawn slope calculator (% and °)Turn a rise and a distance, or a phone spirit-level reading in degrees, into slope % and °, find your steepest section, and check it against a mower's rated maximum.
- Which robot mower fits my lawn?Tell us your lawn's size, zones, steepest slope, narrowest passage and surroundings. We'll show which navigation tech suits it and which UK models are rated to cover it, each with its specs checked date.