Convert kWh/100km to MPGe instantly — enter a value in either field.
| kWh/100km (kWh/100km) | MPGe (MPGe) |
|---|---|
| 12 kWh/100km | 174.5 MPGe |
| 13 kWh/100km | 161.1 MPGe |
| 14 kWh/100km | 149.6 MPGe |
| 15 kWh/100km | 139.6 MPGe |
| 16 kWh/100km | 130.9 MPGe |
| 17 kWh/100km | 123.2 MPGe |
| 18 kWh/100km | 116.3 MPGe |
| 19 kWh/100km | 110.2 MPGe |
| 20 kWh/100km | 104.7 MPGe |
| 22 kWh/100km | 95.2 MPGe |
| 25 kWh/100km | 83.8 MPGe |
Example: 15 kWh/100km → (62.1371 ÷ 15) × 33.7 = 139.6 MPGe
MPGe (miles per gallon equivalent) is the US EPA metric for comparing EV efficiency with petrol cars. It is based on the energy content of one US gallon of petrol, which the EPA defines as 33.7 kWh. The conversion formula is MPGe = (62.1371 ÷ kWh/100km) × 33.7.
At 15 kWh/100km an EV earns 139.6 MPGe — strikingly higher than any petrol car because electric motors are roughly three times more efficient at converting stored energy into motion. At 20 kWh/100km the rating is 104.7 MPGe, still well above the most efficient petrol vehicles.
MPGe is primarily a US concept appearing on EPA window stickers. It helps consumers frame EV running costs in familiar terms, but does not account for regional electricity carbon intensity. For cross-market comparisons, kWh/100km is more portable because it is independent of any energy-price equivalence assumption.
MPGe (miles per gallon equivalent) is the US EPA's metric comparing EV efficiency to petrol cars, based on 33.7 kWh as the energy content of one US gallon of petrol. Formula: MPGe = (62.1371 ÷ kWh/100km) × 33.7.
(62.1371 ÷ 15) × 33.7 = 4.14 × 33.7 = 139.6 MPGe.
Electric motors are roughly 85–90% efficient at converting stored energy to motion, while internal combustion engines are only 20–40% efficient. Most of the energy in petrol is lost as heat; an EV battery converts almost all its stored kWh into movement.