Used EV Purchase Decision Calculator

Work out whether buying a used EV makes financial sense for you in the UK.

Your Details

Your Current Car

Standard 2026/27 rate is £200. Pre-2017 cars may differ.


EV Purchase


Home Charger


Electricity Tariff


EV Running Costs

EVs can cost slightly more to insure due to higher repair costs

Standard 2026/27 rate is £200 for EVs registered after April 2017.


Depreciation

Used EVs typically depreciate 12–20%/yr depending on age & model

Petrol cars typically depreciate 8–12%/yr

Your Results

Petrol fuel

EV charging

Petrol insurance

EV insurance

Petrol road tax

EV road tax

Petrol servicing

EV servicing

Monthly saving switching to EV

Net EV cost after part exchange

Home charger cost

Total upfront outlay

EV value lost

Petrol value lost

Depreciation difference

Break-even time (running costs only)

Overall verdict over ownership period

Hit Calculate to see results

How this works

This calculator compares fuel, charging, insurance, road tax, servicing, charger setup and depreciation to give a full picture of whether switching to a used EV makes financial sense. Road tax uses 2026/27 UK VED rates: £200/year standard for both EV and petrol, with a £440/year luxury supplement for cars whose original list price exceeded £50,000 (EV) or £40,000 (petrol), applied for up to 5 years from second year of registration. The overall verdict accounts for upfront costs, monthly savings and depreciation difference over your chosen ownership period. Figures are estimates only.

About

The EV Calculator is a free UK-focused tool designed to help you decide whether switching to a used electric vehicle makes financial sense for your situation. Simply enter your current driving costs and compare them against the estimated running costs of an EV — including charging, insurance, road tax, servicing and setup. No sign-up, no data collected, just a straightforward calculation.