EV vs Petrol Calculator

An EV savings calculator shows annual fuel cost reduction from switching to an electric vehicle. The saving depends on electricity rate vs fuel price and driving efficiency

The calculator uses the standard published formula for ev savings. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches, British pounds, kilowatts, watts. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: EV fuel cost = Miles/year × (1/efficiency kWh/mi) × Electricity rate. Each step in the calculation is shown so you can verify the result manually.