UK running-cost calculator

See what every mile
really costs.

Calculate or compare the energy and fuel costs of verified UK electric, petrol, diesel and non-plug-in hybrid cars using your own rates.

Static UK vehicle data.
Your prices. Clear maths.

24verified vehicles

4powertrain types

UKrates and measures

Calculation mode

Choose your cars

Compare two vehicles

Efficiency figures are manually checked against cited UK manufacturer sources.

Vehicle A

MY2026 · Air Long Range 81.4kWh 17-inch4.10 mi/kWh

Verified dataset

Vehicle B

MY2026 · Pure 1.6 T-GDi 147PS 2WD manual 17-inch39.8 UK mpg

Verified dataset

Set your assumptions

Your driving and energy prices

Official defaults are dated and may fall back when a source is unavailable. Public charging is illustrative. You can replace every value.

Annual mileage

miles

Your estimated distance over 12 months

Home electricity rate

p/kWh

GB-average Ofgem cap default — replace with your tariff
Ofgem energy price cap · 2026-07-01 · fallback

Public charging rate

p/kWh

Average price paid away from home
Editable illustrative assumption · 2026-08-27 · fallback

Charging done at home

The rest is charged at the public rate

Petrol price

p/litre

Used by petrol and all non-plug-in hybrids
DESNZ weekly road fuel prices · 2026-08-24

Diesel price

p/litre

Used only by diesel vehicles
DESNZ weekly road fuel prices · 2026-08-24

£826.54estimated energy or fuel cost per year

Cost per mile: 8.27p
Monthly cost: £68.88
Annual cost: £826.54

Lower running cost

£1,846.84estimated energy or fuel cost per year

Cost per mile: 18.47p
Monthly cost: £153.90
Annual cost: £1,846.84

Comparison summary

Kia EV3 Air Long Range is £85.03 cheaper per month

Under these assumptions.

Monthly difference: £85.03
Annual difference: £1,020.30
Per-mile difference: 10.20p

Break-even electricity rate

75.7p /kWh

The EV and fuel vehicle cost the same per mile at this average electricity price.

Your current blended rate is 33.9p/kWh, which is 41.8p/kWh below break-even.

How this is calculated

Assumptions

Annual mileage: 10,000 miles
Home electricity: 26.1p/kWh
Public electricity: 65p/kWh
Home charging: 80%
Petrol: 161.6p/litre
Diesel: 182.8p/litre

EV costs use a blend of home and public charging. Fuel costs use UK MPG and exactly 4.54609 litres per imperial gallon. Mild, full and series hybrids are non-plug-in petrol hybrids and use the petrol price.

Results are estimates based on stated vehicle efficiencies and entered prices. They exclude purchase price, depreciation, insurance, servicing, tax, financing, charging losses, seasonal variation and weather.

Data provenanceVehicle data and sources

Kia EV3 Air Long Range

MY2026 · Air Long Range 81.4kWh 17-inch

Confidence: verified

Last verified: 2026-08-27
Efficiency basis: published

Kia UK EV3 specificationsRetrieved 2026-08-27

Official WLTP combined electric consumption for the 17-inch Air Long Range configuration.

Kia Sportage Pure 1.6 T-GDi

MY2026 · Pure 1.6 T-GDi 147PS 2WD manual 17-inch

Confidence: verified

Last verified: 2026-08-27
Efficiency basis: unit converted

Kia UK Sportage specificationsRetrieved 2026-08-27

Converted directly from the published 7.1l/100km WLTP combined figure using 282.4809363 ÷ 7.1.

See what every milereally costs.