EV Road Trip Range Planner

For a typical EV with 250-300 miles EPA range and a 0.85 real-world multiplier, starting at 90% gives 190-230 real usable miles before hitting 20%. A 400-mile trip would need 1-2 charge stops depending on driving speed, conditions, and whether you started fully charged. Modern EVs with 300+ mile EPA range can often complete 400-mile trips with one stop.

A 150 kW DCFC adding 45 kWh (20-80% in a 75 kWh battery) takes about 20-25 minutes at sustained peak power. A 50 kW charger takes 45-60 minutes for the same session. Actual charge time varies - batteries precondition, chargers share power between stalls, and charging slows as it approaches the target level.

Most experienced EV road trippers aim to arrive with 10-15% remaining. Lower than 10% creates range anxiety and reduces time flexibility if a charger is unavailable. Higher than 20% wastes charging time at the previous stop. Plan legs to arrive with 10-20% as your target arrival buffer.

Yes. Aerodynamic drag increases with the square of speed. Going from 65 mph to 80 mph increases drag by about 51%, cutting EV range proportionally more than the speed increase suggests. A car rated for 300 EPA miles may only achieve 220-240 real miles at sustained 80 mph highway driving. This is a bigger factor for EVs than for gas cars because EVs already operate at high efficiency and have less margin.