Example 1
- 64 kWh
- 11 kW
5.82
What EV charging time at 64 / 11? 5.82. Raw hours, no h.
EV charging time calculator
Type kWh and kW. 64 / 11 gives 5.82. 40 / 7 gives 5.71. 77 / 22 gives 3.50. A dot and two places, no h.
Not a DC curve and not a BMS. The calculator divides energy by power. The cost of those kWh lives on EV charging cost.
Results
Enter data and click Calculate.
How it works
EV charging time in this calculator is energy over power when power is greater than zero. 64 / 11 = 5.818β¦ The result is 5.82, with a dot and two places. 40 / 7 gives 5.71. 77 / 22 gives 3.50. No h in the number.
Field a is kWh to add. Field b is power in kW. The label says battery capacity. The formula still divides a by b. 64 at 11 stays 5.82 whatever the SOC.
A DC curve and an 80% threshold do not enter. 5.82 at 64 and 11 is constant power. An 11 kW wallbox is often an onboard limit, not the socket. The calculator does not guess that limit.
EV charging cost next door multiplies kWh by a rate. Here hours only. 64 / 11 stays 5.82, not a bill.
Type 64 and 11, then Calculate. A comma in 11.5 parses. Power 0 yields no number. A quotient sketch, not a charger session.
64 / 11 gives 5.82. 40 / 7 gives 5.71. 77 / 22 gives 3.50. Another power at 64 changes the result.
Formula
hours = energy / power when power > 0
How to use
- Type energy in kWh, for example 64.
- Type power in kW, for example 11.
- Click Calculate. The result is 5.82, with no h.
- 40 / 7 give 5.71. 77 / 22 give 3.50.
- No DC curve here. The cost of those kWh lives on EV charging cost.
64 / 11 = 5.82
Hours = energy / power. 64 / 11 gives 5.82. No h in the result.
- time
- kWh over kW. 64 / 11 shows 5.82. 40 / 7 gives 5.71.
- energy
- Field a in kWh. 77 / 22 gives 3.50. No SOC here.
- power
- Field b in kW. Zero power yields no number.
Examples
Example 2
- 40 kWh
- 7 kW
5.71
What time at 40 / 7? 5.71.
Example 3
- 77 kWh
- 22 kW
3.50
What time at 77 / 22? 3.50.
Related calculators
Common questions
What EV charging time at 64 / 11?
5.82. 64 / 11 is about 5.818. A dot and two places, no h.
What about 40 / 7?
5.71. 40 / 7 is about 5.714.
What about 77 / 22?
3.50. 77 / 22 = 3.5.
Is the result 5.82 h?
No. The calculator shows 5.82. It does not append h.
Is this a DC curve?
No. Constant power. Taper and 80% SOC do not enter.
What if power is 0?
No number. There is no quotient from zero power.
Is 64 the whole pack?
The label says capacity. The formula divides the typed kWh by kW.
How is this different from EV charging cost?
That card multiplies kWh by a rate. Here 64 / 11 stays 5.82.
Does a comma in 11.5 work?
Yes. 64 / 11.5 gives another time than 5.82.
Knowledge sources
Use, cost or emissions come from your numbers. Below are FuelEconomy.gov, EPA and SI terms.
Page updated in 2026.