Calculate EV driving distance from kWh and efficiency, or solve for energy use and miles per kWh, with miles, kilometers, Wh/mi, and kWh/100 mi conversions.
kWh to Miles Formula
The following formula is used to convert kWh to miles.
Variables:
- M is the miles that can be driven
- E is the energy in kilowatt-hours (kWh)
- Eff is the efficiency in miles per kWh
To calculate the miles that can be driven, multiply the energy in kWh by the efficiency in miles per kWh.
| Energy (kWh) | Distance (miles) |
|---|---|
| 1 | 3.5 |
| 2 | 7.0 |
| 3 | 10.5 |
| 4 | 14.0 |
| 5 | 17.5 |
| 7.5 | 26.3 |
| 10 | 35.0 |
| 12 | 42.0 |
| 15 | 52.5 |
| 20 | 70.0 |
| 25 | 87.5 |
| 30 | 105.0 |
| 35 | 122.5 |
| 40 | 140.0 |
| 50 | 175.0 |
| 60 | 210.0 |
| 70 | 245.0 |
| 75 | 262.5 |
| 90 | 315.0 |
| 100 | 350.0 |
| * Rounded to 1 decimal. Assumes constant EV efficiency: 3.5 mi/kWh. Formula: miles = kWh × efficiency. | |
What is Efficiency in Electric Vehicles?
Efficiency in electric vehicles refers to how effectively the vehicle converts electrical energy from the battery into movement, measured in miles per kWh. Higher efficiency means more distance can be covered per unit of energy, which is crucial for maximizing the range of the vehicle.
How to Calculate Miles from kWh?
The following steps outline how to calculate the miles that can be driven from kWh.
- First, determine the efficiency of the electric vehicle (Eff) in miles per kWh.
- Next, determine the energy available (E) in kilowatt-hours (kWh).
- Use the formula from above = M = E * Eff.
- Finally, calculate the miles (M) that can be driven.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
Efficiency of the electric vehicle (Eff) = 4 miles per kWh
Energy available (E) = 24 kWh
