EV Charging Cost Calculator 2026

How this calculator works

Inputs combine state residential electricity-rate planning data + 2026 public DCFC network blended average ($0.43/kWh — Tesla Supercharger + Electrify America + EVgo). Result shows split between home L2 charging and DCFC, plus comparison vs equivalent gas car at your state's gas price + chosen MPG. Verify your current utility tariff and local fuel price before making a purchase decision.

Why DCFC % matters

DCFC (DC Fast Charging) costs 2-4x more than home L2 charging. Apartment dwellers without home charging may have 80%+ DCFC share — flips EV total cost vs gas in some states (Hawaii, California). Homeowners with L2 typically run 5-15% DCFC for road trips, dramatically lower total cost.

EV efficiency assumptions

Default 0.30 kWh/mile = typical Hyundai Ioniq 5, Tesla Model Y, Ford Mach-E, Volkswagen ID.4. Tesla Model 3 Long Range achieves 0.25 kWh/mile (most efficient mainstream). Trucks + larger SUVs (Rivian R1T, Hummer EV, F-150 Lightning) closer to 0.40-0.50 kWh/mile.

Limitations

• Does not include time-of-use (TOU) electric rates that can lower home charging cost 30-50% if charging overnight
• DCFC rate $0.43 is national blended average — Tesla Supercharger ranges $0.27-$0.55, EA ranges $0.40-$0.50
• Does not include subscription discounts (Tesla membership, EA Pass+, Sam's Club, Costco)
• Cold-climate winter EV efficiency drops 20-30% — annual averages assume mixed-climate
• Gas price uses EIA May 2025 averages — actual price varies