Handle the UK’s varied lawn conditions with a potent petrol self-propelled mower for dependable cutting. A self propelled petrol lawn mower is the real workhorse for tackling slopes, damp patches, and thick grass that would stall lesser machines. You get the power without the push, making even the biggest garden feel manageable.
But with so many models out there, how do you choose the right one for your needs? We’ve put one of the top contenders through its paces on typical British lawns to see if it’s power and performance lives up to the hype. Let’s dive in and see what it can really do.
Product Comparison Table: 9 Best Self Propelled Petrol Lawn Mower
| Image | Why We Like This Product | Editor’s Rating | |
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Greenworks 40V 21″ Self-Propelled Cordless Lawn Mower – Brushless…
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9.8 |
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EGO POWER+ Electric Lawn Mower, Self-Propelled Cordless with Select…
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9.6 |
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Greenworks 60V 21″ Self-Propelled Cordless Lawn Mower, Brushless Motor,…
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9.4 |
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YARDMAX 22 in. 201cc Select PACE 6 Speed CVT…
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9.2 |
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BILT HARD 21 Inch Self Propelled Gas Lawn Mower,…
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9.0 |
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PowerSmart 21″ B&S Engine 140cc Self-Propelled Lawn Mower –…
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8.8 |
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PowerSmart 22-Inch Gas Lawn Mower, 150cc B&S Engine, Self-Propelled,…
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8.6 |
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WORX Nitro 21″ Cordless Lawn Mower, Electric Mower with…
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8.4 |
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AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for Large Yard,…
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8.2 |
Read Review |
Quick Review For Top 9 Self Propelled Petrol Lawn Mower
Greenworks 40V 21" Self-Propelled Cordless Lawn Mower – Brushless Motor, 5.0Ah Battery & Charger(75+ Tool Compatible)

The Greenworks 40V 21″ Self-Propelled Cordless Lawn Mower is designed to be a straightforward upgrade from the hassles of gas or the limitations of older cordless models. It centers on giving you a powerful, quiet, and genuinely convenient mowing experience without the fumes, loud noise, or complicated maintenance.
At its core is a brushless motor. This is key for efficiency, providing more torque to handle thick grass while extending the runtime you get from a single charge.
It also operates at about one-third the noise level of a typical gas mower, which is a significant benefit for you and your neighbors. The 21-inch steel cutting deck is durable and provides a clean, even cut across your lawn.
One of the standout features is the self-propelled function. With variable speed control and rear-wheel drive, it handles the work of pushing for you, adapting to your walking pace and offering great traction on slopes or uneven ground.
This makes mowing feel less like a chore and more like a simple walk. Adding to the convenience is a bright LED headlight, letting you mow in the early morning or later in the evening if that fits your schedule better, all without sacrifising visibility.
The mower offers excellent versatility with its 4-in-1 system.
EGO POWER+ Electric Lawn Mower, Self-Propelled Cordless with Select Cut and Touch Drive, Includes (2) 56V 6.0Ah Batteries and Rapid Charger – LM2134SP-2

The EGO POWER+ LM2134SP-2 Electric Lawn Mower is a cordless, self-propelled model designed to handle your lawn with a level of control and power that rivals gas mowers, but without the noise, fumes, or maintenance hassels. Its core innovation is the Select Cut multi-blade system. This isn’t a single blade; it’s a layered system that works together to give you a cleaner cut and the option to customize how you handle grass clippings.
Whether you prefer mulching for a healthy lawn, bagging for a pristine look, or side discharge for heavy growth, the 3-in-1 function has you covered. You can fine-tune the cut height across eight positions, from a short 1-inch trim to a longer 4-inch setting, all easily adjusted with a single lever. Driving this mower is remarkably intuitive thanks to the Touch Drive self-propelled technology. There’s no separate lever to engage.
You simply rest your palm on the control bar, and the mower moves forward. Lift your hand, and it stops. This puts complete, instant control of the mower’s movement right at your fingertips. You can set the variable speed to match your walking pace, from a slow 0.9 MPH for precise maneuvering up to 3.1 MPH for covering open areas quickly. Power comes from two included 56V 6.0Ah ARC Lithium batteries.
Greenworks 60V 21" Self-Propelled Cordless Lawn Mower, Brushless Motor, LED Lights, Includes 2X 4.0Ah Batteries & Rapid Dual-Port Charger(75+ Tool Compatibility, 45Min Runtime)

The Greenworks 60V 21″ Self-Propelled Cordless Lawn Mower is designed to make lawn care simpler, cleaner, and more efficient. If you’re tired of the noise, fumes, and hassle of a gas mower, this cordless model offers a compelling alternative that doesn’t compromise on power. One of it’s standout features is the self-propelled rear-wheel drive. This means the mower does the hard work of pushing itself, especially helpful on hills or through dense, thick grass.
You can easily adjust the speed to match your walking pace, giving you precise control without the strain. Starting is instant—just push a button—and you’ll notice it runs about three times quieter than traditional gas models. There’s no oil, no gas, and no emissions, making it a maintenance-free and eco-friendly choice for your yard. Versatility is key with this mower.
The integrated LED headlights allow you to mow early in the morning or later in the evening, extending your available chore time. It functions as a 4-in-1 machine, letting you choose how to handle clippings and debris. You can mulch for a healthier lawn, bag for a clean finish, use the side discharge, or engage the turbo function for effective leaf pickup in the fall. This adaptability means one tool handles multiple seasonal tasks. Perhaps the biggest value lies in the Greenworks 60V ecosystem.
YARDMAX 22 in. 201cc Select PACE 6 Speed CVT High Wheel FWD 3-in-1 Gas Walk Behind Self Propelled Lawn Mower, Black (YG2860)

The YARDMAX YG2860 22-inch 201cc Select PACE 6-Speed CVT High Wheel Mower is designed to make mowing your lawn a more controlled and less strenuous task. At its heart is a unique transmission system that sets it apart. Instead of fixed gears, it features an exclusive Continuously Variable Transmission (CVT). This means you have a smooth, infinite range of speeds within each of its six selectable ranges.
You simply choose a general speed setting with the lever, and the mower intuitively matches your exact walking pace, whether your moving slowly around delicate flower beds or covering open ground more quickly. It eliminates the jerky jumps of traditional gears and gives you precise control.
Getting started is straightforward, thanks to the automatic choke system. There’s no fumbling with a primer bulb or trying to remember the right choke setting.
Just follow the normal starting procedure, and the engine manages the fuel mixture for you, aiming for a reliable start in various conditions. Once your mowing, you’ll appreciate the large, 22-inch cutting deck and the high, spiked-tread rubber tires. These tires are not your average lawn mower wheels. Their aggressive pattern bites into the ground, providing significantly better traction on slopes, in damp grass, or on uneven terrain.
BILT HARD 21 Inch Self Propelled Gas Lawn Mower, 201cc 4-Cycle OHV Engine, 3-in-1 Functions (Bagging, Mulching and Side Discharge) with 8-Positions Adjustable Cutting Height, Easy Start

The BILT HARD 21 Inch Self Propelled Gas Lawn Mower is designed to handle your lawn care with a focus on power, ease, and adaptability. It’s built around a reliable 201cc 4-cycle OHV engine, which provides the consistent torque needed to cut through thick grass and tall weeds without bogging down. This is a mower meant for reliability season after season.
One of the key features is the self-propelled rear-wheel drive.
This function means the mower essentially drives itself across your yard. You just guide it. This makes tackling larger lawns or properties with slight inclines much less physically demanding. It’s a single-speed system, keeping operation straightforward—you just engage the drive bar and go. The handle is angled and wrapped in foam for a more comfortable grip, which really helps reduce hand and arm fatigue over longer mowing sessions.
Versatility is a major point with this model.
The 3-in-1 steel deck lets you choose how to manage your clippings. You can use the rear bag for a clean, collected finish, opt for side discharge when dealing with overgrown areas, or engage the mulching function to finely chop clippings and return nutrients directly back to your soil. The 21-inch cutting path offers a good balance between maneuverability and efficiency, allowing you to cover ground quickly.
Getting the right cut for your lawn’s health is simple.
PowerSmart 21" B&S Engine 140cc Self-Propelled Lawn Mower – Durable Steel Deck, 6-Height Adjustments, 3-in-1 Mulching Versatility

The PowerSmart 21″ B&S Engine 140cc Self-Propelled Lawn Mower is built to handle your yard work with reliable power and thoughtful design. At its heart is a robust 140cc Briggs & Stratton engine, a name known for durability in outdoor power equipment. This engine is paired with a convenient instant-start system; just pull the cord to get going, with no primer bulb to fuss with. It makes starting up quick and straightforward, so you can spend less time prepping and more time mowing.
One of the mowers standout features is its 3-in-1 versatility. You have three ways to manage your grass clippings, and you can switch between them as needed. For a clean, manicured look, use the efficient bagging function, which collects clippings into the large rear bag. If you want to nourish your lawn naturally, the mulching mode finely chops clippings and returns them to the soil as a natural fertilizer—this can really help reduce how often you need to add extra feed.
For quick cuts on overgrown areas, the rear discharge option simply expels clippings out the back, letting you cover ground fast without stopping to empty a bag. The cutting deck is made from heavy-duty alloy steel, built to resist bumps and last for seasons. The 21-inch width is a great balance, allowing you to cover a good swath with each pass without being to cumbersome to maneuver.
PowerSmart 22-Inch Gas Lawn Mower, 150cc B&S Engine, Self-Propelled, 3-in-1 Mulching System, 6 Cutting Heights, Rear-Wheel Drive, Durable Steel Deck

The PowerSmart 22-Inch Gas Lawn Mower is built to handle your lawn with a focus on power, control, and versatility. At its heart is a reliable Briggs and Stratton 150cc engine, made in the USA. This engine features ReadyStart technology, which means no priming is required—it’s designed to start easily on the first or second pull, even if it’s been sitting for a while. You won’t be wrestling with the machine before you even begin mowing.
This mower is self-propelled with a rear-wheel drive system. This design gives you better traction, especially helpful on slopes or uneven parts of your yard. The mower moves itself forward at a steady pace, so you can focus on guiding it rather than pushing it. It takes alot of the physical effort out of mowing, making larger lawns feel more manageable. Cutting performance is a key highlight. The heavy-duty steel blade is engineered to create ultra-fine grass clippings.
These small clippings are beneficial for your lawn’s health, especially when you use the 3-in-1 mulching system. This system lets you choose how to handle the clippings: mulch them back into the lawn as natural fertilizer, discharge them to the side, or collect them in the included bag. The rear bag has a 1.4-bushel capacity and is straightforward to detach and empty, saving you time. You have precise control over your lawn’s look with the single-lever height adjustment.
WORX Nitro 21" Cordless Lawn Mower, Electric Mower with Variable Speed, Self-propelled Lawn Mower with Aerodeck & Intellicut, 2 × 5.0 Ah Batteries & Charger Included, WG760

The WORX Nitro WG760 21″ Cordless Lawn Mower is a self-propelled electric mower designed to make maintaining your lawn simpler and more efficient. It’s built around a system of integrated technologies that work together to handle the challenges of a typical yard, up to about half an acre in size.
At its core is the Aerodeck cutting deck. This vented design actively manages airflow under the mower.
It helps lift grass for a cleaner cut, prevents clogs and clumping, and improves the efficiency of bagging. You’ll spend less time going over the same patches and emptying the bag. The mower is powered by a brushless motor 2.0, which provides a significant boost in power and a longer runtime compared to older models.
It comes with two 20V 5.0Ah PowerShare Pro batteries and a dual charger, giving you ample power to complete your lawn in one go.
One of the key features is the self-propelled drive with variable speed. You set your pace, up to 3.7 MPH, and the mower moves itself. You just guide it. This makes mowing much less physically demanding, especially on slopes or larger areas. Working in tandem is Intellicut technology.
AMRISUN 21-Inch Self-Propelled Gas Lawn Mower for Large Yard, 170cc 4-Stroke Engine, 6-Position Adjustable Cutting Height, 3-in-1 Mulching, Side Discharge & Rear Bag for Garden Landscaping

The AMRISUN 21-Inch Self-Propelled Gas Lawn Mower is designed for homeowners with larger, more demanding yards. It centers around a powerful 170cc 4-stroke engine that provides reliable starts and consistent power to get through thick grass and extended mowing sessions without bogging down. This is a mower built for the long haul, not just a quick trim.
One of it’s key strengths is its versatility.
The 3-in-1 mowing system lets you choose the best method for your lawn’s needs on any given day. You can mulch the clippings to nourish your soil, side discharge for faster cutting in overgrown areas, or use the included rear bag for a pristine, clean finish. This adaptability makes it a true all-season tool for general lawn care and more involved garden landscaping projects.
Maneuvering this mower is suprisingly easy, thanks to its self-propelled drive system.
The high-wheel design, with 10-inch rear and 7-inch front wheels, helps it roll smoothly over uneven ground, bumps, and gentle slopes. You guide it rather than push it, which significantly reduces fatigue and makes handling a large property much less of a chore. The adjustable drive speed puts you in control of the pace.
You have precise control over your lawn’s appearance with the six-position cutting height adjustment.
Self Propelled Petrol Lawn Mower Buying Guide
A self-propelled petrol mower offers maximum power and runtime freedom for challenging or extensive lawns. No cords to manage and no battery to recharge mid-job. But with different models available, choosing the right one means looking at a few key specs to match your garden’s needs.
Engine Power (CC)
Think of this as the mower’s muscle. A larger engine, measured in cubic centimetres (cc), handles thick, overgrown grass and gentle slopes with less strain. For a standard suburban lawn, 140-160cc is often plenty. If you have rougher terrain or frequently let the grass get long, consider 190cc or above. More power generaly means a cleaner cut in tough conditions.
Cutting Width & Deck Material
How wide a path do you want to mow? Cutting widths typically range from 46cm to 53cm. A wider deck gets the job done faster on big, open spaces. For gardens with lots of tight corners or obstacles, a slightly narrower width can be more maneuverable. Also, check the deck material. Steel is durable, while polymer is lighter and resists rust—a good choice if you store your mower outside.
Drive System & Speed Settings
The whole point of ‘self-propelled’ is to let the mower do the hard work of moving itself. Front-wheel drive is common and good for flat lawns. Rear-wheel drive offers superior traction and control on slopes or uneven ground. Don’t settle for a single speed. Variable speed controls are essential, letting you walk comfortably while the mower adjusts its pace to the grass thickness.
Grass Collection & Mulching
Do you prefer a tidy finish or to feed your lawn? A large capacity collection box is great if you bag clippings, but means frequent stops to empty it. Many mowers offer a 3-in-1 system: bag, side-discharge, or mulch. Mulching finely chops clippings and returns them to the soil as natural fertilizer, saving you time and improving lawn health. It’s a feature worth having.
Frequently Asked Questions About Self Propelled Petrol Lawn Mower
What is a self propelled petrol mower?
It’s a petrol-powered lawn mower that drives itself forward. You just guide it. The engine powers the wheels, so you don’t have to push. It makes mowing large or sloped lawns much easier.
Are thay difficult to start?
Modern models are pretty simple. Most have a primer bulb and a recoil starter. You follow the steps: press the primer a few times, set the choke, and pull the cord. After the first season, they usually start on the first or second pull.
How do I choose the right cutting width?
Think about your lawn’s size. A wider deck (like 21 inches) covers more ground faster, which is great for big yards. A narrower deck (around 19 inches) is easier to maneuver in tight spaces around flower beds and trees.
What kind of maintenance is required?
You’ll need to do a few regular things. Always use fresh fuel or add a stabilizer. You must change the oil and air filter each season. Also, keep the underside of the deck clean and sharpen the blade at least once a year for a clean cut.
Are they very loud and smelly?
They are louder than electric mowers, but modern ones meet noise regulations. You’ll want to wear hearing protection. They do emit exhaust fumes, so it’s best to use them in well-ventilated areas. The smell usually isn’t to strong if the engine is tuned properly.
Is the self-propel speed adjustable?
Yes, almost all models have a speed control. It’s often a lever on the handle. You can set a slow pace for tricky areas and a faster one for open stretches. This gives you full control over your mowing pace.
Can I use it on a steep hill?
They are excellent for slopes compared to push mowers. The drive system does the hard work. For safety, always mow across the slope, not straight up and down. Check your model’s manual for it’s specific recommendations on hill grading.
Where should I store it?
Store it in a cool, dry place like a shed or garage. Make sure the fuel tank is either empty or treated with a stabilizer if you’re storing it for the winter. This prevents gumming and makes starting next spring much easier.
Bottom Line
When cordless power isn’t enough, a petrol self-propelled mower delivers sustained performance for demanding conditions and extended runtime. You get the muscle to tackle thick, overgrown grass and the freedom to mow for as long as you need, without waiting for a battery to recharge. The self-propelled drive does the hard work of pushing for you, making slopes and large lawns feel much more manageable. It’s a straightforward solution for serious mowing.
For anyone with a sizable, challenging yard, this type of mower is a robust workhorse. It provides a level of power and independence that’s hard to match. If your property demands reliable, on-demand power session after session, investing in a self propelled petrol lawn mower is a smart choice for getting the job done efficiently. You’ll apprecate the consistent results.








