⚡

EV Charging Habit & Cost Calculator

Level 1 (120V) vs Level 2 (240V) Overnight Speed & Payback Model
Charging Parameters Live adjustments
35 mi
US average is ~37 mi/day; UK average ~20 mi/day.
10 hrs
Hours vehicle is plugged in parked at home.
75 kWh
e.g., Model Y LR: 75 kWh, ID.4: 77 kWh, Bolt: 65 kWh.
$0.15 / kWh
Standard or off-peak EV home rate.
$0.45 / kWh
Supercharger or roadside commercial DC rate.
$1,200
Wallbox unit + 240V dedicated circuit breaker.
Standard Outlet (120V)
Level 1 Charging
120V / 12A (~1.4 kW) • Standard 3-prong wall outlet
Replenish Speed 4.0 mph
Overnight Recovery 40.0 mi
Sufficiency Flag true
✓ Replenishes Daily Drive
Dedicated Wallbox (240V)
Level 2 Charging
240V / 32A (~7.2 kW) • Dedicated garage circuit
Replenish Speed 28.0 mph
Overnight Recovery 280.0 mi
Full 0-100% Charge 10.4 hrs
✓ Instant Morning Surplus
Overnight Miles Recovered vs Daily Commute Target Daily Target: 35 mi
Level 1 (120V) 40.0 mi recovered
Level 2 (240V) 280.0 mi recovered (Battery Capped)
Operating Cost & Upgrade Economics
Annual Home Charging Cost
$204.54
At $0.15/kWh for 35 mi/day
Public DC Fast Charging Equiv.
$613.62
At $0.45/kWh on road trips/DC
Level 2 Payback Duration
3.8 yrs
Payback on $1200 investment
Active Profile Verdict: Level 1 satisfies your 35-mile daily commute with 5 miles overnight surplus. Level 2 installation pays for itself in 3.8 years.
Source Grounding & Empirical EV Data: Insights synthesized from experienced EV drivers on Quora. Level 1 wall outlets supply ~1.4 kW adding ~4 miles per hour (32–40 miles per 8–10 hour sleep), fully covering the median US driver's 35-37 daily miles. Level 2 (240V / 32A) replenishes ~28 miles per hour (~7.2 kW), allowing drivers to capitalize on ultra-low overnight EV tariffs (e.g., £0.08/kWh in the UK or $0.05-$0.10 off-peak in the US).
Enjoy this tool? Build your own with Super