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# EV - Electrical Vehicles Charging Speed (km/h and mph)

## Electrical vehicle charging speed vs. power supply and energy consumption.

### Electric Vehicle - Power and Charging Speed

Charging speed is "how many km or miles are added to the range during charging per hour" and can be calculated as

c = P / E           (1)

where

c = charging speed (km per hour, miles per hour)

P = charging power (kW)

E = the energy consumption of the car when driving (kWh/km, kWh/miles)

#### Example - Charging EV

An electric car with energy consumtion 20 kWh/100km (0.2 kWh/km) is charging on a fast charger with 45 kW power. The charging speed can be calculated as

c = (45 kW) / (0.2 kWh/km)

= 225 km per hour

### Electric Vehicle - Power Supply and Charging Speed Calculator

The same calculation as above but with single phase current (A) and voltage (V) as input instead of power (kW).

### Electrical Vehicle - Power Supply and Charging Speed Diagram

The diagram below can be used to estimate charging speed for electrical vehicles. The default values are for single phase 240V, 32 amps, 7.7 kW, 18 kWh/100km driving consumption - and charging speed 43 km/h.

### Electrical Vehicle - Charging Time and Energy - Charging Speed Diagram

The diagram below can be used to estimate charging speed for electrical vehicles. The default values are for 13 minutes, 9 kWh, 42 kW, 18 kWh/100km driving consumption - and charging speed 230 km/h.

Download and print electrical vehicle charging energy, time and charging speed diagram!

## Related Topics

• ### Miscellaneous

Engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more.

## Related Documents

• ### EV - Electric Vehicles Energy Consumption - miles/kWh vs. kWh/100 km

Convert between energy consumption units like miles/kWh and kWh/100 km.
• ### EV - Electric Vehicles Range vs. State of Charge (SOC) Calculator

Electric vehicle range vs. battery size, SOC - state of charge and energy consumption.

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## Citation

• The Engineering ToolBox (2019). EV - Electrical Vehicles Charging Speed (km/h and mph). [online] Available at: https://www.engineeringtoolbox.com/ev-electrical-vehicle-power-supply-charging-speed-d_2154.html [Accessed Day Month Year].

Modify the access date according your visit.

7.8.15

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