2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires): home charging cost in Oklahoma

In Oklahoma, home electricity runs 13.37¢/kWh — put a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires)'s EPA-rated 36.8 kWh/100mi against that and 100 miles costs $4.91, versus $16.02 for a gas car averaging 25.5 mpg. Charging at home costs a fraction of what gas would here: 69.3% less than gas per mile, here specifically.

What a year of driving costs

Driving 15,000 miles a year — fueleconomy.gov's own default assumption — a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) charged at home in Oklahoma costs about $737/year in electricity, against about $2,403/year for the gas-car comparison. That's a savings of about $1,666 a year.

Cost of a full charge

A 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) needs roughly 133.8 kWh to reach its EPA-rated 364-mile range, which runs about $17.89 at 13.37¢/kWh in Oklahoma.

Where this ranks

This combination ranks 4,146 of 20,400 state/model pairs for cost savings against gas (1 is cheapest). The BMW i7 xDrive50 Sedan (21 inch Summer Tires) alone ranks 184 of 400 models for efficiency; Oklahoma alone ranks 5 of 51 states for electricity price.

Getting set up to charge a 2027 BMW i7 xDrive50 Sedan (21 inch Summer Tires) at home

The numbers above assume Level 2 home charging is already in place — the electrical work behind that is a real, separate cost that varies by panel, wiring, and local labor rates, not something this page's per-mile math includes.

Get quotes from local electricians for Level 2 charger installation in Oklahoma before deciding.

Where these figures come from

Every figure on this page traces to a named EIA or EPA dataset — see the methodology guide. Oklahoma is one of the cheapest states for home electricity — the guide to why the cost varies so much by state covers what drives that.