EV Home vs Public Charging Cost Calculator
Compare the cost of charging your electric vehicle at home versus public charging stations and superchargers.
Monthly Charging Cost Comparison
Understanding EV Charging Costs The cost to charge an EV depends on your vehicle’s efficiency (miles per kWh), how far you drive, and the electricity rate at whichever charger you use.
The Formula kWh needed per month = Miles Driven ÷ Vehicle Efficiency (mi/kWh) Monthly cost = kWh needed × Rate ($/kWh) Cost per mile = Rate ÷ Efficiency
Charging Level Guide
- Level 1 (120V home outlet): 3–5 miles of range per hour of charging. Slow but free.
- Level 2 (240V home charger): 20–30 miles per hour. Best for overnight home charging.
- DC Fast Charger (DCFC / CCS / CHAdeMO): 100–300+ miles per hour. Used for road trips.
- Tesla Supercharger: 200–1,600+ mph depending on V2/V3/V4. Priced per kWh or per minute.
Typical Rates (USA, 2025)
- Home electricity: $0.10–$0.20/kWh (varies widely by state/utility)
- Public Level 2: $0.20–$0.35/kWh
- DC Fast Charger: $0.35–$0.60/kWh
Key Insight Home charging is almost always the cheapest option — often 2–4× cheaper than public fast charging. If you have access to overnight home charging, you can dramatically reduce your fueling costs.