$31.52full charge
The GLC Electric 400 4MATIC (94 kWh) costs about $31.52 to charge fully at Massachusetts's average home rate of 30.48¢/kWh, including about 10% charging loss (103.4 kWh from the wall). That is $9.52 per 100 miles.
EIA residential average, Massachusetts, 2026-08 (latest in this book). EIA weekly retail regular, Massachusetts, week of Oct 19, 2026.
At 1,000 miles a month and 30 mpg, home charging costs $95.22 and the gas car costs $140.07. The EV saves $44.85 a month at $4.202/gal. Both miles and mpg are editable on the calculator.
The listed DC fast-charge time is 10–80% in 22 min at up to 330 kW. A full home charge is a different session. This page prices the energy from the wall, not how long a Level 2 charger takes.
This page uses the residential rate. Public fast-charging prices are a separate scenario and are not included.