Drive calculators
Vehicle and EV running-cost tools — charging cost and time, cost per mile, journey costs and comparisons.
EV charging cost calculator
What an EV charge will cost, from battery size, charge range and electricity price.
EV charging time calculator
How long an EV charge will take, from battery size, charge range and charger power.
EV cost per mile
Your EV's running cost per mile, from its efficiency and electricity price.
Petrol journey cost
Estimates litres used and fuel cost from your distance, UK mpg and price per litre.
Diesel journey cost
The fuel cost of a diesel journey, from distance, fuel economy and pump price.
EV vs petrol running-cost comparison
Compare the same mileage using your EV efficiency, charging price, petrol mpg and pump price.
Annual mileage cost
Turns a per-mile running cost into a yearly and monthly budget figure.
MPG to L/100km converter
Converts UK mpg fuel economy figures to litres-per-100km.
Miles to km converter
Converts a distance between miles and kilometres.
Battery energy to range reverse estimator
How far you can go from the battery energy you have left.
How running costs are worked out
Fuel and charging costs follow the same pattern: distance divided by efficiency gives the energy or fuel used, multiplied by the price you pay. For petrol and diesel that means miles per gallon and price per litre; for an EV it means miles per kWh (or kWh per 100 miles) and your electricity rate.
Use your own prices
Pump prices and electricity tariffs change often and vary a lot — home off-peak charging can cost a fraction of a rapid public charger. Enter the price you actually pay for the most useful answer.
Real-world efficiency
Official economy figures are measured in test conditions. Motorway speed, cold weather, heavy loads and short trips all reduce real efficiency, so your own long-term average (from the car's trip computer or fuel receipts) is usually the better input.
To compare vehicle types, try the EV vs petrol running-cost comparison; for a whole year's budget, use the annual mileage cost calculator. If your economy figure is in a different unit, convert it first with the MPG to L/100km converter.