EV Range & Charging Cost Calculator
Calculate your electric vehicle's range and full charge cost from battery size and efficiency.
Popular EV Specs (2025)
| Vehicle | Battery | Range | Efficiency |
|---|---|---|---|
| Tesla Model 3 LR | 82 kWh | 358 mi | 4.4 mi/kWh |
| Tesla Model Y LR | 82 kWh | 330 mi | 4.0 mi/kWh |
| Chevy Equinox EV | 85 kWh | 319 mi | 3.8 mi/kWh |
| Ford Mustang Mach-E ER | 91 kWh | 312 mi | 3.4 mi/kWh |
| Rivian R1T Dual Motor | 135 kWh | 314 mi | 2.3 mi/kWh |
EPA-rated range and calculated efficiency. Real-world range varies.
Frequently Asked Questions
How do I calculate EV range?
EV range = Battery capacity (kWh) × Efficiency (miles/kWh or km/kWh). Example: a 75 kWh battery at 4.0 miles/kWh gives 300 miles of range. Real-world range is typically 10–20% less than rated range due to temperature, speed, heating/AC, and driving style.
What is a good efficiency for an electric car?
EV efficiency in miles/kWh (2025 models): Tesla Model 3 Long Range: ~4.5 mi/kWh, Chevy Bolt: ~3.9 mi/kWh, Ford Mustang Mach-E: ~3.5 mi/kWh, Rivian R1T: ~2.5 mi/kWh, Lucid Air: ~5.0 mi/kWh. Higher is better. Cold weather, highway speeds, and heavy cargo reduce efficiency.
How much does it cost to charge an EV at home?
Home charging cost = Battery capacity (kWh) × Electricity rate ($/kWh). The US average residential electricity rate is about $0.12–0.16/kWh in 2025–2026. A 75 kWh battery at $0.14/kWh costs $10.50 for a full charge. That equates to roughly $0.035/mile at 4 mi/kWh — far cheaper than gasoline.
How long does it take to charge an EV?
Charging time depends on the charger level: Level 1 (120V, 1.4 kW): ~50+ hours for a full charge. Level 2 (240V, 7–11 kW): 4–12 hours for a full charge. DC Fast Charger (50–350 kW): 20–45 minutes to 80%. Most EV owners charge at home overnight using Level 2. Fast chargers are used for long trips.
Does cold weather reduce EV range?
Yes, significantly. Cold temperatures can reduce EV range by 20–40% — both because battery chemistry is less efficient below 20°C (68°F) and because cabin heating consumes energy that would otherwise power the motor. Pre-conditioning the cabin while still plugged in helps. Hot weather has a smaller effect (5–10% reduction from air conditioning).