Convert kWh/100km to mi/kWh instantly — enter a value in either field.
| kWh/100km (kWh/100km) | mi/kWh (mi/kWh) |
|---|---|
| 12 kWh/100km | 5.18 mi/kWh |
| 13 kWh/100km | 4.78 mi/kWh |
| 14 kWh/100km | 4.44 mi/kWh |
| 15 kWh/100km | 4.14 mi/kWh |
| 16 kWh/100km | 3.88 mi/kWh |
| 17 kWh/100km | 3.66 mi/kWh |
| 18 kWh/100km | 3.45 mi/kWh |
| 19 kWh/100km | 3.27 mi/kWh |
| 20 kWh/100km | 3.11 mi/kWh |
| 22 kWh/100km | 2.82 mi/kWh |
| 25 kWh/100km | 2.49 mi/kWh |
Example: 15 kWh/100km → 62.1371 ÷ 15 = 4.14 mi/kWh
Europe and most of the world rate EV efficiency in kilowatt-hours per 100 km — the energy consumed over a fixed distance, analogous to L/100km for petrol. The United States uses miles per kWh, measuring how far the car travels on a fixed unit of energy. Like the L/100km vs mpg split for petrol, these two metrics are inverses of each other and measure the same efficiency from opposite directions.
The conversion follows from the length of a mile (1.609344 km): mi/kWh = 62.1371 ÷ kWh/100km. An EV consuming 15 kWh/100km gets 4.14 mi/kWh; at 20 kWh/100km it drops to 3.11 mi/kWh. EPA ratings and US utility-rate calculations typically use mi/kWh, while WLTP standards and European range estimates use kWh/100km.
The EPA's MPGe metric, which compares EVs to petrol cars, is calculated from mi/kWh × 33.7 (the kWh energy equivalent of one US gallon of petrol). So an EV at 4.14 mi/kWh has an MPGe of 4.14 × 33.7 ≈ 139.6.
mi/kWh = 62.1371 ÷ 15 = 4.14 mi/kWh.
Both indicate the same improvement: they are reciprocals. Lower kWh/100km and higher mi/kWh both mean the EV travels further on each unit of energy.
EPA range (miles) = battery usable capacity (kWh) × mi/kWh. A 75 kWh battery rated at 4 mi/kWh gives an estimated range of 300 miles.