That depends on the efficiency of your EV, how many miles you drive, and power cost in your area. Something like a Model 3 will typically do <300 wh/mi (gross)

That depends on the efficiency of your EV, how many miles you drive, and power cost in your area. Something like a Model 3 will typically do <300 wh/mi (gross). At $.14/kwh (pretty close to average for the US), you'd be looking at about $0.042/mile. Energy prices in the US vary between <$.05/kwh (usually off-peak) to ~$.49/kwh (PG&E if you didn't already guess that), so ymmv.