Short answer: Among the 145 models with a manufacturer list price in our data, the middle price is about $2,300, and half of them fall between roughly $1,500 and $3,100. The cheapest listed is $629. What you pay at a store can be different, so treat these as a starting range, not a quote.

Figures come from our catalog of 378 robot lawn mowers (data as of 2026-10-07). They are what the makers claim.

What do robot lawn mowers usually cost?

Our catalog has 378 models. A US dollar list price is known for only 145 of them, so everything below describes that smaller group, not the whole market.

Here is how those 145 list prices spread out:

  • Lowest: $629
  • A quarter of them are at or below about $1,500
  • Middle (median): about $2,300
  • Three quarters are at or below about $3,100
  • Nine out of ten are at or below roughly $4,500

A few listings are far higher. The top one in our data is about $44,000. Those extreme values are commercial or very large units, not typical home mowers. If you only read the highest number, you would get the wrong idea.

These are list prices set by the maker. Some of the numbers we hold may be sale prices that were published on a maker's site. Prices also move over time. We do not show retailer prices on this site, because they change often and we would rather show nothing than a number that is out of date.

Why do some robot mowers cost more than others?

Makers do not explain their pricing, so this is general reasoning, not a measured result. These are the things that usually separate a lower-priced model from a higher-priced one:

  • Claimed lawn size. A mower built for a bigger lawn usually has a bigger battery, a stronger motor and a larger body. Read more about sizing in how to choose a robot lawn mower.
  • How it finds its way. Some mowers follow a boundary wire you bury or pin down. Others are wire-free and use satellites, cameras or lasers. The methods are compared in RTK vs LiDAR vs vision. Our data does not give enough prices per method to say which kind is cheaper, so we will not guess.
  • Drive and slope ability. Models that claim to handle steeper ground often use more powerful drive systems. See robot mowers for slopes and hills.
  • Extras in the box. A separate base station, a better antenna, extra sensors, a camera, or a longer-range connection can all add to the price.

What other costs should I plan for?

The list price is rarely the whole cost. Think about these before you decide:

  • Installation. Some models need a bit of setup work. Others are meant to be set up by you in an afternoon. Ask what is included, and whether a dealer charges for installing.
  • Wire and pegs. If the mower uses a boundary wire, you need the wire, pegs and connectors. Some kits include them, and larger lawns may need more than the kit holds.
  • Somewhere to put the dock. The charging dock needs power and a flat spot. Many owners add a small shelter or use a garage wall to protect it from sun and rain. Check what the maker advises.
  • Spare blades. Blades wear out. See how often to replace robot mower blades. The price of a set is not in our data, so we do not quote one.
  • Possible subscriptions. Some mowers use a cellular connection for remote features. Whether that is free, free for a period, or paid is a question to ask the seller or the maker. We do not have this information in our data.
  • Repairs and warranty. Ask how long the warranty is and where service is done.

What this means for you

Start with your lawn, not the price tag. Measure it first with how to measure your lawn, then decide whether you need a wire or not. After that, add up the extras above. A model that looks cheap can end up costing about the same as a pricier one once you add what it needs.

Prices change, so check with the seller before you buy. Our buying checklist lists questions worth asking.

For the details-minded

  • The 145-model price group is a subset. We do not know whether it represents all 378 models, so the median here is not a market average.
  • Price known for each navigation type is based on very few models in some groups (a handful for several types). We do not compare navigation types by price for that reason.
  • Our data has no price-by-lawn-size breakdown, so we do not publish one.
  • List prices are in US dollars as published by the maker at the time of collection. UK, EU and AU prices are not covered here.

Next step

Not sure where to start? Try our short quiz at /help-me-choose/. It uses your yard size and slope, not your budget alone.

Quick answers

What is the cheapest robot mower in your data? The lowest list price among the 145 models with a price is $629. List prices change, so check current ones with the seller.

Is the median price a good budget number? It is a rough guide only. About $2,300 is the middle of a partial list, and your lawn may need something very different.

Do you show store prices? No. We do not show retailer prices because they change often. We show list prices from makers where we have them.

Do robot mowers have a monthly fee? Some may charge for certain remote features, but we do not have that data. Ask the maker or seller before buying.