One of the most frequently needed electricity conversions is kW (kilowatts) to Amps.
- kW is a unit of measure of electrical power (wattage).
- Ampere (A) is a unit of measure of electrical current (amperage).
To convert kW to Amps, we can use the equation for electrical power:
Power (kW) = I (A) * V (V)
You can use this kilowatt to amperes converter. Below you will find 3 examples of a kW to Amps conversion for:
- 4 kW central air conditioner (220 V).
- 1 kW washing machine (220 V).
- 36 kW tankless electric water heater (240 V).
kW To Amps Calculator
Using the calculator, we have calculated a kW to Amps table:
|Power (kW)||Voltage (220 V)||Amperage (A)|
|1 kW to Amps:||220 V||4.55 Amps|
|2 kW to Amps:||220 V||9.09 Amps|
|4 kW to Amps:||220 V||18.18 Amps|
|6 kW to Amps:||220 V||27.27 Amps|
|9 kW to Amps:||220 V||40.91 Amps|
|18 kW to Amps:||220 V||81.82 Amps|
|27 kW to Amps:||220 V||122.73 Amps|
|36 kW to Amps:||220 V||163.64 Amps|
|45 kW to Amps:||220 V||227.27 Amps|
Example 1: How Many Amps Does 4 kW Central AC Unit Draw?
For example, let’s take a 36,000 BTU central air conditioner with a power output of 4 kW. The electrical circuit can provide 220 V voltage. How many amps does the 4 kW AC unit draw? Let’s use the kW to Amps calculator:
We can see that the 4 kW air conditioner needs 18.18 amps to function properly.
Example 2: 1 kW Washing Machine To Amps
Most washing machines draw about 1,000 W or 1 kW of electrical power. You don’t need upgrades to your electrical circuit for an average washing machine. Here is how many amps it draws:
1 kW washing machine needs about 4.55 Amps to run.
Example 3: 36 kW Electrical Tankless Water Heater
Tankless water heaters are notorious for needing a huge amount of electrical current (amps). For example, you have 9 kW, 18 kW, 27 kW, and even 36 kW tankless water heaters that run on electricity. Usually, they run on 240 V and can reach up to 200 amps.
For this example, let’s take a bigger 36 kW tankless water heater on 240 V potential:
As you can see, 36 kW converts to 150 amps. This is some serious amperage; for such a device, you would need 4 x 40 A breakers.
This conversion can be quite useful for a number of different applications. For example, if you have ever wondered how long does it take to charge a Tesla Model 3 (check here), you will have to think about kW as well as amps.
If you have any questions about kW to amps calculation, you can pose them in the comments below.