Electric Car Range Calculator — Battery

Calculate your EV's real-world range. Enter battery size and efficiency, then select your driving conditions for an accurate range estimate.

Your EV's total battery capacity

EPA combined rating

Affects real-world range

EPA Range = Battery Capacity (kWh) × Efficiency (mi/kWh); Real-World Range = EPA Range × Condition Factor; Ideal: 100%, Mixed: 85%, Highway: 75%, Cold: 75%, Extreme Cold: 55%; Usable Range (20-80% SOC) = Range × 60%
Example: 75 kWh battery, 3.5 mi/kWh, highway driving; EPA Range: 263 miles; Real-World (highway): 197 miles (75%); Usable Range (20-80%): 118 miles; Full charge cost: $12.00

How do you calculate electric car range?

EV range is calculated using: Range (miles) = Battery Capacity (kWh) × Efficiency (miles/kWh). However, real-world range differs from EPA estimates due to: Temperature: Cold weather (32°F) reduces range by 20-40%, Speed: Highway driving at 75mph uses 15-25% more energy than city driving, Climate control: A/C uses 10-15% extra, heating uses 20-40% extra, Terrain: Hills increase consumption by 10-30%, Tire pressure and condition: Underinflated tires reduce range 3-5%, Payload: Extra 100 lbs reduces range 1-2%. Most EVs achieve 70-85% of EPA-rated range in real-world mixed driving.

How many miles can an electric car go on a full charge?

Current EV ranges (2025 models): Budget EVs (200-250 miles): Nissan Leaf (150-220 mi), Mini Cooper SE (114 mi), Chevy Bolt (259 mi), Mainstream EVs (250-350 miles): Tesla Model 3 (272-341 mi), Hyundai Ioniq 5 (240-303 mi), Ford Mustang Mach-E (230-312 mi), Long-range EVs (350-400+ miles): Tesla Model S (405 mi), Lucid Air (516 mi), Mercedes EQS (350 mi), Rivian R1T (328 mi). Average new EV in 2025: 280-320 miles EPA range. Real-world range is typically 10-25% less than EPA estimates.

How does cold weather affect EV range?

Cold weather impact on EV range: At 40°F (4°C): 10-15% range reduction, At 32°F (0°C): 20-25% range reduction, At 20°F (-7°C): 30-40% range reduction, At 0°F (-18°C): 40-50% range reduction. Why cold affects range: Battery chemistry is less efficient in cold, Cabin heating uses significant energy (unlike gas cars which use waste engine heat), Battery preconditioning uses energy before driving. Tips to maximize winter range: Precondition while plugged in (heat cabin before unplugging), Use seat heaters instead of cabin heat (uses 80% less energy), Park in garage when possible, Keep battery above 20% charge in cold weather.

How fast do EVs lose range while driving on the highway?

Highway speed impact on EV range: 55 mph: ~95% of EPA range, 60 mph: ~90% of EPA range, 65 mph: ~85% of EPA range, 70 mph: ~75-80% of EPA range, 75 mph: ~65-75% of EPA range, 80 mph: ~55-65% of EPA range. Why highway reduces range: Aerodynamic drag increases with the square of speed, EVs don't have multi-speed transmissions optimized for highway, Regenerative braking is minimal at constant highway speeds. For road trips: Plan charging stops every 150-200 miles at highway speeds, not the full EPA range.