Mowers
Best Mowers for Half an Acre (2026): What Size to Buy
Quick answer
For half an acre, a 21 to 22 inch self-propelled mower is the right size: it mows the full half acre in about 1 hour 9 minutes, and most half-acre lots have far less grass. The best pick is the EGO LM2206SP, with up to 70 minutes of runtime. A 30 inch rider cuts it to about 32 minutes.
Half an acre is 21,780 square feet, and it sits right on the line between walk-behind and riding mower territory. The honest answer for most owners is a quality self-propelled walk-behind, because once you subtract the house, driveway, patio and beds, a typical half-acre lot has about a third of an acre of actual lawn. A 42 inch tractor mows that in minutes, but it costs several times more and needs a garage bay.
Our top pick is the EGO POWER+ LM2206SP 22 in. Aluminum Deck Self-Propelled Mower Kit at $1,299.00: its 70 minute rating covers a typical half-acre lot's grass on one charge, and its aluminum deck carries a lifetime warranty. For the most range per charge, the Greenworks 80V 25 in. Self-Propelled Mower Kit is rated for 0.75 acre. Measure your real lawn with the lawn size calculator before choosing between walking and riding.
On this page
- What size mower do I need for half an acre?
- How long does it take to mow half an acre?
- What size lawn mower for 1/2 acre: push, self-propelled or riding?
- Beginner pick: rated for half an acre on a budget
- Intermediate pick: more deck and more range
- Expert pick: premium walk-behind, robot or small tractor
- How do the half-acre picks compare on specs?
- How much of a half-acre lot is actually grass?
- Is a robot mower a good fit for a half-acre lot?
What size mower do I need for half an acre?
For half an acre, choose a 21 to 22 inch self-propelled walk-behind for most lots, a 25 to 30 inch walk-behind for open lots, or a 30 to 42 inch riding mower if walking an hour is not practical for you.
- Typical half-acre lot, some slope: a 21 to 22 inch rear-wheel-drive self-propelled mower.
- Open, flat half acre: a 25 inch battery mower or a 30 inch walk-behind such as the Toro 60V MAX 30 in. eTimeMaster Personal Pace Mower (Tool Only).
- Mobility limits or long mowing sessions: a 42 inch tractor such as the Husqvarna TS 120 42 in. Lawn Tractor.
- No mowing at all: a robot rated for at least half an acre, such as the Husqvarna Automower 410iQ Robot Mower.
For more detail by lot type, see what size mower for half an acre and half an acre with hills.
How long does it take to mow half an acre?
| Mower | Deck | Speed | Time for 1/2 acre | Time for 1/3 acre of grass | Hours per season (30 mows, 1/2 acre) |
|---|---|---|---|---|---|
| Gas push mower | 18 in | 3 mph | 1 hr 21 min | 53 min | 40 |
| Push or self-propelled | 21 in | 3 mph | 1 hr 9 min | 46 min | 35 |
| Self-propelled | 22 in | 3 mph | 1 hr 6 min | 44 min | 33 |
| Wide battery self-propelled | 25 in | 3 mph | 58 min | 38 min | 29 |
| Wide-area walk-behind | 30 in | 3 mph | 49 min | 32 min | 24 |
| Small rider | 30 in | 4.5 mph | 32 min | 21 min | 16 |
| Lawn tractor | 42 in | 4.5 mph | 23 min | 15 min | 12 |
| Zero-turn | 42 in | 6.5 mph | 16 min | 11 min | 8 |
Acres per hour = mph x (deck inches x 0.85 / 12) x 5,280 / 43,560 x 0.8 for turns and trimming.
What size lawn mower for 1/2 acre: push, self-propelled or riding?
A push mower works on half an acre only if it is flat and you are comfortable walking for over an hour. A self-propelled mower is the practical default, because it removes the effort of pushing 60 to 90 pounds, especially with a full bag or on slopes. A riding mower saves 45 minutes or more per mow, which adds up to over 20 hours in a season, but it is more machine than most half-acre lots need.
The deciding factors are usually your body and your storage, not the lawn. If walking an hour is hard on your knees or back, or the lot is steep, a rider or robot is money well spent. If you have a single-car garage and a flat, typical lot, a quality 21 or 22 inch self-propelled mower is the right call. Our push vs self-propelled mower comparison covers the middle ground.
Beginner pick: rated for half an acre on a budget
For flat, typical half-acre lots, and buyers who want a mower rated for the job at a low price.
Greenworks 80V 21 in. Self-Propelled Mower Kit
$479.99Rated to cut up to half an acre on its included 80V 4.0Ah battery, with rear-wheel drive, variable speed, a brushless motor and a 4-year tool and battery warranty.
Best for: Half-acre lawns with some slope
Check price on Amazon
SENIX 21 in. 2-in-1 Gas Push Mower, 144cc
$249.99SENIX rates this value-brand 144cc push mower for yards up to half an acre, and its 11 inch rear wheels roll over bumps more easily. It mulches or side discharges and carries a 2-year warranty.
Best for: Flat, uneven lawns up to half an acre
Check price on AmazonIntermediate pick: more deck and more range
For owners who want the half acre done faster, with margin on runtime or a variable-speed gas drive.
Greenworks 80V 25 in. Self-Propelled Mower Kit
$717.27A 25 inch deck with rear-wheel drive and a brushless motor, rated for up to 0.75 acre per charge. That is a 50 percent margin over a full half acre, and the wider deck saves about 11 minutes a mow over 21 inches.
Best for: Open half-acre lots
Check price on Amazon
SENIX 22 in. Variable Speed RWD Self-Propelled Gas Mower, 201cc
$509.99Variable-speed rear-wheel drive, a 201cc engine, a single-handle four-wheel height adjuster from 1.25 to 4 inches and a 22 inch 3-in-1 deck. SENIX is a value brand with a 2-year warranty.
Best for: Half-acre lots where you set the pace
Check price on Amazon
WORX WG760 40V 21 in. 3-in-1 Self-Propelled Mower
$429.99Rated for lawns up to half an acre on two 20V 5.0Ah PowerShare batteries, with IntelliCut sensors that raise blade speed only in thick grass, and drive speed up to 3.7 mph.
Best for: Owners of WORX PowerShare tools
Check price on AmazonExpert pick: premium walk-behind, robot or small tractor
For owners who want the best cut, no mowing at all, or a seat.
EGO POWER+ LM2206SP 22 in. Aluminum Deck Self-Propelled Mower Kit
$1,299.00Up to 70 minutes on the included 10.0Ah battery, 11.1 ft-lb of cutting torque and blade speeds up to 3,350 RPM, on a 22 inch cast aluminum deck with a lifetime warranty.
Best for: Typical half-acre lots
Check price on Amazon
Husqvarna Automower 410iQ Robot Mower
$1,829.99EPOS positioning with no boundary wire, onboard radar, a 1 to 4 inch cut range and 45 percent slope handling, rated for up to half an acre, with a 4-year warranty.
Best for: Half-acre lots with about a third acre of grass
Check price on Amazon
Husqvarna TS 120 42 in. Lawn Tractor
$2,799.00A 19 HP, 540cc Briggs and Stratton engine, 42 inch twin-blade deck and pedal-operated transmission. It mows a full half acre in about 23 minutes, the lowest-cost gas rider in our catalog.
Best for: Owners who cannot walk an hour
Check price on Amazon Who should not buy this tier: Skip the tractor if you can comfortably walk for an hour and have a small garage: it costs over twice as much as the EGO and takes a full parking space. Skip the 410iQ if your lot has more than about 0.4 acre of actual grass or several disconnected zones; step up to the Husqvarna Automower 420iQ Robot Mower. And skip premium walk-behinds on a tiny, flat lawn, where a simple push mower is enough.
How do the half-acre picks compare on specs?
| Model | Price | Deck width | Rated acreage | Rated area | Drive | Runtime | Engine |
|---|---|---|---|---|---|---|---|
| EGO POWER+ LM2206SP 22 in. Aluminum Deck Self-Propelled Mower Kit | $1,299.00 | 22 in | - | - | - | 70 min | - |
| Greenworks 80V 21 in. Self-Propelled Mower Kit | $479.99 | 21 in | 0.5 acres | - | rwd | - | - |
| SENIX 21 in. 2-in-1 Gas Push Mower, 144cc | $249.99 | 21 in | 0.5 acres | - | push | - | 144 cc |
| Greenworks 80V 25 in. Self-Propelled Mower Kit | $717.27 | 25 in | 0.75 acres | - | rwd | - | - |
| SENIX 22 in. Variable Speed RWD Self-Propelled Gas Mower, 201cc | $509.99 | 22 in | - | - | rwd | - | 201 cc |
| WORX WG760 40V 21 in. 3-in-1 Self-Propelled Mower | $429.99 | 21 in | 0.5 acres | - | - | - | - |
| Husqvarna Automower 410iQ Robot Mower | $1,829.99 | - | - | 21,780 sq ft | - | - | - |
| Husqvarna TS 120 42 in. Lawn Tractor | $2,799.00 | 42 in | - | - | - | - | 540 cc |
How much of a half-acre lot is actually grass?
Much less than half an acre, usually. Here is a worked example for a typical suburban half-acre lot. Your numbers will differ, so measure.
| Area | Example square feet | Share of lot |
|---|---|---|
| Total lot | 21,780 | 100% |
| House footprint and garage | 2,600 | 12% |
| Driveway and walks | 1,200 | 6% |
| Patio, deck and play area | 600 | 3% |
| Beds, shrubs and tree rings | 2,800 | 13% |
| Woods or natural areas left unmowed | 0 to 3,000 | 0 to 14% |
| Remaining lawn to mow | 11,580 to 14,580 | About 0.27 to 0.33 acre |
Illustrative example, not a survey. Use the lawn size calculator or a free satellite map measuring tool for your own lot.
Is a robot mower a good fit for a half-acre lot?
Often, yes. Half-acre lots with a third of an acre of grass are the robot mower sweet spot: large enough that mowing takes real weekend time, and small enough that a mid-priced robot covers it easily. The Husqvarna Automower 410iQ Robot Mower is rated for exactly half an acre, and the Mammotion LUBA 2 AWD 3000X Robot Mower for 0.75 acre with 80 percent slope handling. Keep a string trimmer for edges.
See robot mower size for half an acre, and our best self-propelled lawn mowers if you would rather keep walking.
How we chose
We did not test these products in person. Picks are researched from manufacturer specifications and owner manuals, engine and safety certifications where they apply, warranty terms, public recall records, and the recurring themes in verified owner reviews. We favor established brands with large review counts and parts support, match each pick to a real yard size or task, and place it in the tier where its price and capability actually belong.
Frequently asked questions
What size mower for .5 acre?
For half an acre, a 21 to 22 inch self-propelled mower is the right size for most lots. It mows a full half acre in about 1 hour 9 minutes, and a typical half-acre lot with a house and driveway in about 45 minutes. A 25 to 30 inch walk-behind or a 30 to 42 inch rider saves time on open or sloped lots.
What size lawn mower for 1/2 acre if I want to ride?
A 30 to 42 inch riding mower suits half an acre. A 42 inch lawn tractor mows a full half acre in about 23 minutes at 4.5 mph. The Husqvarna TS 120 42 inch is the lowest-cost gas rider in our catalog. Smaller 30 inch riders such as the Troy-Bilt TB30 and Cub Cadet CC30 fit tighter storage spaces.
Is a riding mower worth it for half an acre?
Usually not, unless walking for an hour is difficult for you, the lot is steep, or you simply prefer riding. A half-acre lot typically has about a third of an acre of grass, which a good self-propelled mower handles in about 45 minutes. A rider saves that time but costs several times more and needs a garage bay.
Can a battery mower handle half an acre?
Yes. The Greenworks 80V 21 inch and WORX WG760 are rated for up to half an acre per charge, and the Greenworks 80V 25 inch for up to 0.75 acre. The EGO LM2206SP is rated for up to 70 minutes, enough for a typical half-acre lot's lawn. Thick spring grass shortens runtime, so a spare battery helps on a full half acre.
How long does it take to mow half an acre with a push mower?
About 1 hour 9 minutes with a 21 inch mower at a steady 3 mph, allowing for overlap and turns, or about 1 hour 21 minutes with an 18 inch mower. A typical half-acre lot has less grass once the house and driveway are subtracted, so real mowing time is often 45 to 55 minutes, plus trimming.
What robot mower is best for half an acre?
The Husqvarna Automower 410iQ is rated for half an acre with wire-free EPOS navigation, radar and 45 percent slopes, and suits most half-acre lots. For steep half-acre yards, the WORX Landroid Vision Cloud WR342 is rated for 84 percent slopes. If your lot has close to half an acre of actual grass, choose a model rated for 0.75 acre or more.
Researched, not professional advice. This page is compiled from published specifications, manuals, labels and owner-review consensus, not hands-on testing. Follow the manufacturer's instructions and product label, and consult a qualified professional where safety, chemicals, fuel or structures are involved. As an Amazon Associate we earn from qualifying purchases.