yCalculator

EV Charging Cost Calculator

Last updated: April 2026

Your EV

1 mile = 1.609km. UK average mileage is about 12,000km, or 7,400 miles, per year.

Charging mix

Total: 100%

Charging rates

Annual cost headline

Annual charging cost

ยฃ753

Cost per mile

10.1p/mile

Cost per 100km

ยฃ6.28

Charging method breakdown

Method%kWh/yrCost/yrp/kWh
Home70%1,867 kWhยฃ45724.5p
Workplace10%267 kWhยฃ00p
Public AC10%267 kWhยฃ10439p
Public DC8%213 kWhยฃ14970p
Ultra-rapid2%53 kWhยฃ4380p
TOTAL100%2,667 kWhยฃ753-

Vs petrol comparison

Your EV cost10.1p/mile
Equivalent petrol (40mpg, 145p/litre)16.5p/mile
Annual saving vs petrolยฃ475

Home charging optimisation

Switch to Octopus Go or a similar EV tariff for overnight charging.

Current home rate: 24.5p/kWh

Octopus Go rate: about 9p/kWh overnight

Annual saving from switching: ยฃ289

Charging speed guide

7kW home wallbox

Adds about 30 miles per hour

22kW public AC

Adds about 80 miles per hour

50kW rapid

Adds about 100 miles in 30 minutes

150kW+ ultra-rapid

Adds about 100 miles in 10 minutes

EV chargepoint grant

Homeowners and renters in flats may be eligible for the OZEV Electric Vehicle Chargepoint Grant, worth GBP350 off a home wallbox. It is only available through OZEV-approved installers.

How much does it cost to charge an EV at home?

Charging at home on a standard tariff costs approximately 24.5p per kWh. A 60kWh battery providing roughly 300km of range costs about GBP14.70 to charge from empty. On a dedicated EV tariff like Octopus Go, overnight charging at around 9p/kWh reduces this to about GBP5.40.

How much do public chargers cost?

Public charging costs vary significantly. Slow and fast AC chargers typically charge 30-50p per kWh. Rapid DC chargers charge 60-85p per kWh. Ultra-rapid chargers can reach 80-99p per kWh, so rapid public charging can approach the cost of petrol per mile.

What is the OZEV chargepoint grant?

The Office for Zero Emission Vehicles offers a GBP350 grant toward the cost of installing a home EV chargepoint. The grant is available to homeowners, renters in flats, and people in rented accommodation, and must be claimed through an OZEV-approved installer.

What does this mean?

This calculator is designed to help you understand the likely number before you make a decision or start an application.

Your result should be checked against official UK guidance, especially if your circumstances include dependants, exemptions, prior leave, or a complex immigration history.

Treat the figure as a planning tool rather than legal advice. Where the answer affects an application deadline or major payment, speak to an authorised adviser.

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