EV kWh/100 mi to MPGe

Enter an EV's kWh per 100 miles and instantly see the MPGe that regulators cite plus your out-of-pocket cost using your utility rate. Perfect for comparing EPA labels, European WLTP data, or your own telematics logs to ICE fuel economy.

EPA or on-board efficiency in kilowatt-hours per 100 miles.
Optional. Defaults to $0.15/kWh for cost estimates.
Optional. Defaults to EPA's 33.7 kWh per gallon equivalence.

Conversion uses steady-state averages. Real-world efficiency varies with speed, temperature, and accessory loads.

Examples

  • 29 kWh/100 mi, $0.15/kWh, 33.7 kWh/gal ⇒ EPA-equivalent efficiency: 116.21 MPGe • Energy per mile: 0.290 kWh/mi • Electricity cost per 100 miles: $4.35 USD • Cost per mile: $0.04 USD.
  • 38 kWh/100 mi crossover, $0.22/kWh, default equivalence ⇒ EPA-equivalent efficiency: 88.68 MPGe • Energy per mile: 0.380 kWh/mi • Electricity cost per 100 miles: $8.36 USD • Cost per mile: $0.08 USD.

FAQ

Can I use WLTP or CLTC data?

Yes. Convert those ratings to kWh per 100 miles first (most WLTP figures are kWh per 100 km), then run the calculator to see the MPGe equivalent.

What if I only know Wh/mi?

Multiply Wh/mi by 100 and divide by 1,000 to get kWh per 100 miles, then plug that into the input.

Does this include charging losses?

No. Enter the wall-to-wheel kWh per 100 miles if you want the MPGe to reflect charging losses; otherwise use the EPA or onboard figure which already includes them.

How do I compare with gas prices?

Use the cost per 100 miles output alongside the price of driving 100 miles in your gas vehicle to quantify savings for blog posts or sales collateral.

Additional Information

  • MPGe is computed with the EPA conversion of 33.7 kWh per gallon; adjust the equivalence input if another jurisdiction mandates a different factor.
  • Cost outputs assume constant efficiency—add weather or charging overhead separately if you want to include winter losses.
  • Divide MPGe by 0.832 to estimate miles per liter equivalent for global comparisons.
  • Pair this conversion with gas price trackers to highlight the EV vs. ICE fuel cost gap in content marketing.