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How Much Does It Cost to Charge an EV at Home?

Use the calculator for an instant estimate, or read on for a full breakdown of how this cost is calculated.

Quick Answer

$30–$80/month

Varies by equipment & usage

How EV Home Charging Cost Is Calculated

EV charging cost depends on how many miles you drive, how efficient your vehicle is (measured in kWh per 100 miles or miles per kWh), and your electricity rate. The formula: (annual miles ÷ miles per kWh) × $/kWh = annual cost.

For example: 12,000 miles/year ÷ 3.5 miles/kWh × $0.16/kWh = $549/year, or about $46/month. Efficiency varies by vehicle — compact EVs average 3.5–4.5 miles/kWh, while larger trucks and SUVs may get 2–2.8 miles/kWh.

If you charge at a public Level 3 fast charger (typically $0.30–$0.60/kWh), costs are 2–4x higher. Home Level 2 charging (240V) is the most cost-effective option for daily use.

Estimate Your Cost

Miles per month

1000

mi

Efficiency

3.50

mi/kWh

Electricity rate

0.16

$/kWh

Est. monthly cost

$45.71

~3,429 kWh/year

Factors That Affect the Cost

Miles driven per month

Vehicle efficiency (miles per kWh) — varies from 2 to 4.5+ depending on model

Home electricity rate vs. public charging rates

Level 1 (120V) vs. Level 2 (240V) charger — Level 2 is faster but same cost per mile

Climate — cold weather reduces battery range by 10–30%

Driving style — highway vs. city, speed, use of heat/AC

Time-of-use electricity rates (charging at night can cut costs significantly)

Pro Tip

The biggest savings usually come from upgrading the least efficient items first. Use Watt Wisdom to see exactly which loads are driving your bill before spending money on improvements.

Want a personalized estimate for your whole home?

Watt Wisdom calculates your full household energy profile — every appliance, your climate zone, and your usage habits — and tells you exactly what's driving your bill.

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