What does the EV Charging Cost Calculator do?

Calculate electric vehicle charging costs for home and public charging. Compare costs per mile. All calculations are performed in your browser using official UK rates and thresholds.

Does this use current UK rates?

Yes. This calculator uses the latest UK rates for vehicle tax, fuel duty and other motoring costs as of the 2025/26 financial year.

Is this suitable for electric vehicles?

From April 2025, electric vehicles are no longer exempt from Vehicle Excise Duty (road tax). This calculator accounts for EV-specific rates where applicable.

EV Charging Cost Calculator Trending

Calculate electric vehicle charging costs for home and public charging. Compare costs per mile.

Last updated: April 2026 · Source: GOV.UK — Electric Vehicle Homecharge Scheme

Battery Size (kWh)

Current Charge (%)

Target Charge (%)

Home Rate (p/kWh)

Public Rate (p/kWh)

Efficiency (mi/kWh)

Home Charging Cost

£8.82

7.0p/mile

Public Charging Cost

£25.20

20.0p/mile

Energy Needed

36.0 kWh

Range Added

126 mi

7kW Home

5.1h

50kW Rapid

43 min

Disclaimer

This calculator is provided for informational purposes only and should not be considered as financial or tax advice. All calculations are performed locally in your browser — no personal data is collected or sent to our servers. Rates and thresholds are sourced from HMRC and GOV.UK and are updated for the current tax year. Always verify results with HMRC or consult a qualified professional before making financial decisions.

How It Works

Electric vehicle charging costs depend on where and how you charge. Home charging using a 7 kW wallbox is the cheapest option at around 24-25p per kWh on a standard electricity tariff, or as low as 7-10p per kWh on an off-peak EV tariff (such as Octopus Go or Intelligent Octopus). A typical EV with a 60 kWh battery costs £14-£15 for a full charge at home on standard rates.

Public rapid chargers (50-150 kW) are significantly more expensive, typically 60-80p per kWh, while ultra-rapid chargers (150-350 kW) can cost 70-85p per kWh. Workplace charging is often free or subsidised, and some supermarket chargers offer free slow charging while you shop.

This calculator estimates your charging costs across different scenarios. It factors in your annual mileage, vehicle efficiency (miles per kWh), charging split between home and public, and your electricity tariff to give an accurate picture of running costs compared to petrol or diesel.

Example: 10,000 miles/year, 3.5 miles/kWh efficiency

Annual energy needed: 10,000 / 3.5 = 2,857 kWh
Home charging (80% at 10p/kWh off-peak): 2,286 kWh x 10p = £228.60
Public charging (20% at 70p/kWh): 571 kWh x 70p = £399.70
Total annual charging cost: £628.30
Equivalent petrol cost (40 MPG, £1.40/L): ~£1,591
Annual saving vs petrol: ~£963

Source: GOV.UK — Electric Vehicle Homecharge Scheme

Frequently Asked Questions

What does the EV Charging Cost Calculator do?: Calculate electric vehicle charging costs for home and public charging. Compare costs per mile. All calculations are performed in your browser using official UK rates and thresholds.
Does this use current UK rates?: Yes. This calculator uses the latest UK rates for vehicle tax, fuel duty and other motoring costs as of the 2025/26 financial year.
Is this suitable for electric vehicles?: From April 2025, electric vehicles are no longer exempt from Vehicle Excise Duty (road tax). This calculator accounts for EV-specific rates where applicable.