EV Charging Cost Calculator
Calculate your EV charging time, cost, and see how it compares to gas. Select your charger type and compare annual fuel savings switching from gas to electric.
Frequently Asked Questions
Level 1 (1.4 kW) uses a standard 120V household outlet and adds 3–5 miles per hour. Level 2 (7.2 kW typical) uses a 240V outlet or dedicated EVSE and adds 20–30 miles per hour. DC Fast Charging (50–350 kW) uses direct current and can charge to 80% in 20–40 minutes. Most home charging is Level 2; DC fast chargers are at public stations.
For a 75 kWh battery from 20% to 80% (60% charge = 45 kWh) at $0.13/kWh: 45 × $0.13 = $5.85. A full charge (0–100%) would cost about $9.75. Compare this to filling a 12-gallon gas tank at $3.50 = $42. The equivalent range for that gas would cost roughly 4× more.
Regularly charging to 100% can accelerate battery degradation for some lithium-ion chemistries. Most manufacturers recommend keeping the daily charge level between 20–80% for longevity, with 100% charges reserved for long trips. Some EVs (Tesla LFP batteries) are designed to charge to 100% regularly without issue.
At average US rates ($0.13/kWh for electricity, $3.50/gallon for gas), an EV costs about 3–4 cents per mile vs 10–12 cents per mile for a 30 MPG gas car. Over 15,000 miles per year, that is roughly $450–600 in electricity vs $1,500–1,800 in gas — annual savings of $900–1,200 on fuel alone.
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