Calculators that use your numbers
A general answer to “what does charging cost?” is close to useless, because the honest answer depends on your battery, your tariff and where you plug in. These take those inputs and give you a figure — with every assumption visible on the page.
Charging cost calculator
What a charge costs on your tariff, including the charging losses most calculators leave out.
Open the calculator →Charge time calculator
How long a charge takes, and which of the car or the charger is holding it back.
Open the calculator →EV mileage tax calculator
What the 3p-per-mile charge costs you from April 2028, against the fuel duty a petrol driver pays today. UK.
Open the calculator →How we build these
Every calculator states that it is an estimate, shows what it assumes, and says plainly what it excludes. The formulas live in tested code rather than in a spreadsheet, and each result is a shareable link — change an input and the address bar changes with it, so you can send someone your exact numbers.
Where a figure cannot be derived honestly, we say “not known” rather than showing a zero.
In development
- EV vs petrol running cost
- Home vs public charging split
- Home charger payback
- Off-peak tariff savings
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