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EV vs Petrol Cost Savings Calculator in the Uk
Compare the running costs of an electric car and a petrol car based on your own driving and energy costs.
Electric Vehicle
Mileage, efficiency and charging details
Driving profile
Miles driven
mi
Please enter a distance greater than zero.
EV efficiency
mi/kWh
Typical range: 2.5 to 5 miles per kWh.
Please enter a valid efficiency value.
How do you charge?
Off-peak rate
£/kWh
Please enter a valid rate.
Off-peak hours/day
hrs
Please enter a value between 0 and 24.
Standard electricity rate
£/kWh
Please enter a valid electricity rate.
Using typical UK estimates: 8p/kWh for 5 off-peak hours and 28p/kWh for remaining daytime charging.
Petrol Car
Your current fuel cost
Petrol spend
£
Please enter a valid petrol spend.
The calculator compares estimated EV electricity use against your petrol spend, then shows weekly, monthly and yearly savings.
UK tariff assumptions
Uses typical UK charging rates when unsure.
No data collected
Everything runs privately in your browser.
Petrol comparison
Compares your actual petrol spend.
Estimate only
Actual savings vary by car, tariff and driving style.
Your EV vs Petrol Results
Estimated comparison based on your details.
—
Electric
EV charging cost
—
per week
Petrol
Petrol cost
—
per week
Saving
Weekly saving
—
per week
Monthly
Monthly saving
—
per month
Annual saving
—
per year
—
EV cost per mile
—
Petrol cost per mile
—
Estimated Savings — 12 Months
Monthly savings based on your calculated weekly saving.
Recommendation
—
Estimates based on your inputs. Actual savings vary by vehicle, driving style and tariff. For guidance only.