Makita LXT
A capable lawn mower (cordless mower, 38cm cutting width, 18V battery) for a well-kept lawn.
The Best Lawn Mowers for a Large Garden (UK 2026)
A large lawn needs a mower with the power, cutting width and ideally self-drive to get the job done without wearing you out. That points to petrol, self-propelled or high-capacity cordless mowers - or a robot rated for a big working area. Here's what to look for and our top picks for large gardens.
Quick answer
For big lawns, a petrol or self-propelled mower with a wide deck (around 40-51cm) makes short work of the area, while a high-capacity cordless with a spare battery is a quieter alternative. A robot mower rated for a large working area can keep a big lawn permanently neat with no effort. Prioritise cutting width, power and run time.
What to look for
A wider cutting deck finishes faster - vital on big lawns. Self-propelled drive saves you pushing over a large area. For petrol, enough engine cc for sustained cutting; for cordless, a big battery (or two) for run time; for robots, a working-area rating comfortably above your lawn. A larger grass box means fewer stops to empty.
How we pick
We rate large-garden mowers on cutting width, power, run time or working area, self-drive and value. Every pick is genuinely suited to a big lawn.
Our top picks
#1
#2 
Eufy Robot Lawnmower E15
A capable lawn mower (robotic mower) for a well-kept lawn.
#3 
Makita LXT
A capable lawn mower (cordless mower, 43cm cutting width, 18V battery) for a well-kept lawn.
#4 
Scheppach
A capable lawn mower (petrol mower, 42cm cutting width) for a well-kept lawn.
#5 
Flymo EasiStore 300R
A capable lawn mower (manual push mower, 30cm cutting width) for a well-kept lawn.
#6 
Einhell GE-CM 18/30 Li Solo
A capable lawn mower (cordless mower, 30cm cutting width, 18V battery) for a well-kept lawn.
#7 
Segway Navimow i105E Robotic Mower
A capable lawn mower (robotic mower) for a well-kept lawn.
#8 
Einhell GC-EM
A capable lawn mower (corded electric mower, 37cm cutting width, 1600W motor) for a well-kept lawn.
Frequently asked questions
What is the best mower for a large lawn?
For a large lawn, a petrol or self-propelled mower with a wide deck is the traditional best choice for power and speed; a high-capacity cordless with a spare battery is a quieter modern alternative; and a robot mower rated for a big working area keeps it neat automatically. Prioritise cutting width, power and run time.
How wide should the cutting deck be for a big garden?
For a large lawn, look for a cutting width around 40cm and upwards - wider decks cut more grass per pass so you finish faster. Very large lawns benefit from 46-51cm petrol or self-propelled mowers. Balance width against manoeuvrability if your lawn has lots of borders and obstacles.
Bottom line
Our top pick is the Makita LXT (our score 9.5/10) - A capable lawn mower (cordless mower, 38cm cutting width, 18V battery) for a well-kept lawn..