Cost per mile formula
Cost/mile = kWh per mile × $/kWh. At $0.15/kWh and 0.30 kWh/mi, driving costs about $0.045 per mile.
Find kWh per mile
Divide kWh per 100 miles by 100, or check your EV's trip meter. Compare to gas using local fuel prices.
Frequently asked questions
Q: Does this include charging loss? A: Use metered kWh from your bill for best accuracy—wall losses add ~5–10%.