Electric Vehicle Calculator

EV Range Calculator

Estimate how far your EV will actually go — adjusting for temperature, driving speed, and style, which all cut into the EPA sticker range.

Vehicle & Conditions

Tesla Model 3 ~4.0 · Mustang Mach-E ~3.3 · Rivian R1T ~2.2

Estimated Real-World Range

231

miles on a full charge

Ideal Range

263 mi

Effective mi/kWh

3.1

To 80% Charge

185 mi

Range Loss

−12%

How range is estimated.

Ideal Range = Usable kWh × Efficiency (mi/kWh) Real Range = Ideal × Temp × Speed × Style factors Effective mi/kWh = Real Range ÷ Battery kWh

Charging to only 80% is recommended for daily use to preserve battery life — DC fast-charging also slows dramatically above 80%.

Frequently asked questions.

How much does cold weather reduce EV range?

Range can fall 20–40% in freezing temperatures. Batteries are less efficient when cold, and cabin heating draws significant power. Preconditioning while plugged in helps a lot.

Does highway driving use more energy than city?

Yes — unlike gas cars, EVs are most efficient in city driving thanks to regenerative braking. Sustained highway speeds above 70 mph can cut range 15–20%.

Should I charge to 100%?

For daily driving, most manufacturers recommend charging to 80–90% to extend battery lifespan. Save 100% charges for long trips.