EV Charging Calculators

Every EV charging calculator on the site, grouped by the job. Each one shows the formula and the steps with your numbers, keeps its inputs in the link so you can share or repeat a result, and prints a dated record. Nothing you type is uploaded, and there are no built-in prices: you enter your own.

Charging cost and savings

• EV charging cost calculator — cost per charge, per mile and per month from your electricity price.
• EV cost per mile calculator — energy and running cost per mile or km.
• EV vs gas calculator — yearly fuel savings and the break-even gas price.
• EV total cost calculator — total cost of ownership of an EV and a gas car.
• EV lease calculator — monthly payment and total cost of an EV lease.
• EV charging cost per kWh calculator — the real price per kWh of a public charging bill.
• kWh cost calculator — cost of a device, a number of kWh, or the price per kWh of a bill, at your rate.
• Hybrid gas savings calculator — fuel saved and payback of a hybrid.

Charging, range and efficiency

• EV charging time calculator — Level 1, Level 2 and DC fast charging times.
• EV range calculator — driving range from battery size and efficiency.
• EV trip planning calculator — charging stops, trip time and cost from distance and battery.
• EV efficiency calculator — miles per kWh, kWh per 100 miles, km and MPGe.
• EV battery life calculator — battery capacity and range left after a number of years, or the yearly loss from a health reading.
• E-bike range calculator — range per charge from battery Wh and consumption.

Charger installation

• EV charger wire size — breaker size, minimum ampacity and wire gauge for voltage drop.
• Level 2 charger amps calculator — amps, kW, breaker size and miles per hour of a Level 2 charger.
• kWh to watts converter — kWh to watts and watts to kWh over a length of time.
• EV charger load calculator — whether your service can take a charger, and the largest that fits.
• EV plug types chart — charge connector types by region, AC and DC, and adapters.

All results are estimates for planning: check the car maker’s and charger maker’s data and the applicable electrical code (such as NEC Articles 625 and 220), and have installations done by a qualified electrician. Results may be used freely in commercial work such as quotes and reports.