Free tool
Robot mower finder
Answer eight questions about your garden and the finder filters every current robot mower we track down to the ones that fit, then ranks them and explains each match. It runs on published specifications and live prices, and no brand can pay to appear.
How to use the finder
Answer the eight questions, then press Show matching mowers. If you don't know your lawn size, measure it first with the lawn size calculator, which can send the area straight here.
- Lawn area in square metres.
- Number of separate lawns: one, two, or three or more.
- Narrowest passage the mower must pass through between areas.
- Steepest slope, from flat up to 60% or more. Our slopes guide shows how to measure it.
- Trees and buildings: open sky, some, or lots.
- Budget, from up to £600 to no limit.
- Boundary wire: happy with one, prefer to avoid it, or must avoid it.
- 4G tracking and security: not needed, nice to have, or essential.
How it decides
For each model, the finder picks the cheapest version rated for your lawn plus 20% headroom. If none has that headroom, it takes the cheapest version that covers the lawn and warns you it will need to run most days.
Hard rules remove a model when:
- no version is rated for your lawn, or the model is discontinued;
- its slope rating is below your steepest slope;
- you said it must be wire-free and it uses a perimeter wire;
- you said 4G is essential and it has neither built-in 4G nor a 4G module;
- the manufacturer states a minimum passage wider than yours, or fewer zones than you need;
- it costs more than your budget, or has no price at all when you've set one.
Soft rules then rank what's left. Models gain points for slope headroom, for matching a wire-free preference, for navigation suited to your tree cover (LiDAR, vision or hybrid systems under heavy cover; RTK-only systems lose points there), for 4G when you'd like it, for coming in under budget, and for a higher overall score. They lose points when your slope is within 10 percentage points of the rating, when there's little spare capacity, or when they're rated for more than four times your lawn.
Every result lists the reasons it fits and anything to watch out for. Treat it as a shortlist, then read the model pages before you buy.
Frequently asked questions
Why was a model I expected left out?
Usually because it failed a hard rule: its largest version isn't rated for your lawn, its slope rating is below your steepest slope, it needs a boundary wire when you said it must be wire-free, it has no 4G option when you said security is essential, or it costs more than your budget. Discontinued models are also left out.
What happens if the manufacturer doesn't publish a figure?
Missing data doesn't rule a model out unless it matters a lot. A model with no published slope rating is excluded only if your slope is steeper than about 25%, and one without a published passage width stays in the list with a warning. Missing zone or passage figures cost a few ranking points.
Which price does the finder use?
The lowest current price we've found at a UK retailer for the version it recommends. If we don't have a live price yet, it uses the manufacturer's RRP and labels it as such. The budget rule uses the same figure.
Does anyone pay to be ranked higher?
No. The ranking comes only from the rules described on this page, applied to specifications, prices and our published scores. Retailer links are plain direct links today.
Why are there only a few results?
The finder shows at most five. If fewer than three models pass, it tells you which answer is ruling out the most models, for example that more models fit a slightly higher budget or a wired installation.