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Cost to run an electric lawn mower

Each 45 minutes use of an electric lawn mower drawing 1,000 W costs 19.7p at 26.32p/kWh. Used 1 use a day of 45 minutes, 1 day a week, that comes to 85.8p a month.

Each use costs

19.7p a use

That is 0.75 kWh. Used as set, it comes to 85.8p a month and £10.29 a year.

On the label or in the manual.

Standby, thermostats and off-peak use

Drawn while plugged in and not running.

Electricity price

26.32p/kWh in the United Kingdom

Default Ofgem, 1 Oct – 31 Dec 2026.
Running cost, energy and emissions by period
PeriodCostEnergyCO2e
A use19.7p0.75 kWh163 g
A day, on average2.82p0.11 kWh23 g
A month85.8p3.26 kWh709 g
A year£10.2939.1 kWh8.5 kg

How we calculated this

Energy is power multiplied by time: 1,000 W for 45 minutes uses 0.75 kWh each time.

The rating is the average Centre for Sustainable Energy gives for an electric mower. A cordless mower runs from a battery that is charged from the wall, so its cost is the energy to charge that battery, not this rating.

The starting use for an electric lawn mower, 1 use a day of 45 minutes, 1 day a week, is where the calculator starts, not a measurement of your home: change it to how you use yours. A day is the average across the week, and a month is a twelfth of a 365-day year.

Electricity costs 26.32p/kWh. That is the published figure for the United Kingdom, 1 Oct – 31 Dec 2026, from Ofgem. Average for England, Scotland and Wales, paying by Direct Debit. No VAT on electricity from 1 October 2026 to 31 March 2027.

Standing charges are left out: you pay them whether or not the appliance runs.

Emissions use 0.217 kg CO2e per kWh, the lifecycle intensity of electricity generated in the United Kingdom in 2025, from Ember, via Our World in Data. Lifecycle means building the power stations and supplying their fuel are counted too. It is the grid’s average, not the particular power station an extra appliance brings on.

What drives the cost

An electric lawn mower runs a motor, and it draws 1,000 W while it mows. A session of 45 minutes uses 0.75 kWh and costs 19.7p, and it is only used in the growing season, so the yearly cost is modest.

Also called: electric mower, corded mower, lawnmower.

What it costs in the UK, Europe and the US

For an electric lawn mower used as typical (1 use a day of 45 minutes, 1 day a week), at each country’s published average electricity price.

CountryElectricity priceA use
United Kingdom26.32p/kWh19.7p
United States (average)18.19¢/kWh13.6¢
Ireland€0.4042/kWh€0.30
Germany0,3869 €/kWh0,29 €
France0,2561 €/kWh0,19 €
Spain0,2669 €/kWh0,20 €
Italy0,2966 €/kWh0,22 €
Netherlands€ 0,2558/kWh€ 0,19

Compared with similar appliances

ApplianceTypical powerAn hourA year, typical use
Electric lawn mower1,000 W26.3p£10.29
Vacuum cleaner900 W23.7p£18.53

How to spend less on it

  • Mow when the grass is dry and only as often as it needs it: cutting long, wet grass makes the motor work harder for longer.
  • Keep the blade sharp: a dull blade tears the grass and takes longer to get the same result.

Questions

How much does an electric lawn mower cost to run per hour?

At 26.32p/kWh, an electric lawn mower drawing 1,000 W costs 26.3p for every hour of running at full power.

How much does an electric lawn mower cost to run a year?

Used 1 use a day of 45 minutes, 1 day a week, it costs about £10.29 a year at 26.32p/kWh, or 85.8p a month.

How much does it cost to mow the lawn?

A session of 45 minutes uses 0.75 kWh and costs 19.7p at 26.32p/kWh. Cutting it once a week for the year as set here costs £10.29.

Sources

  1. How much electricity am I using?, Centre for Sustainable Energy, July 2026. “Electric mower (1000 W)”

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Electricity

Default Ofgem, 1 Oct – 31 Dec 2026.

Default Ofgem, 1 Oct – 31 Dec 2026.

Gas

Default Ofgem, 1 Oct – 31 Dec 2026.

Default Ofgem, 1 Oct – 31 Dec 2026.