Use our Amps Per Kw Calculator by entering values of Power (Watts), Voltage (V) to get the your results quickly
Amps Per Kw Calculator
Enter any 2 values to calculate the missing variable
The Amps per kW Calculator makes things way easier for you. It assists you to measure the number of amps required for a specific kilowatt rating based on the voltage and power factor. More importantly, this tool is also useful in electrical calculations for both singlephase and threephase systems, helping you manage the current and power capacity of an electrical system.
Formula:
Contents
$kW = \frac{PF \times A \times V}{1000}$
Variable  Description 

kW  Kilowatt (power) 
PF  Power factor (dimensionless) 
A  Current in amperes (A) 
V  Voltage in volts (V) 
How to calculate amps from kW ?
The general formulas to convert kW to amps vary based on the phase type (singlephase or threephase).

SinglePhase Formula:
$\text{Amps} (A) = \frac{\text{kW} \times 1000}{\text{Voltage} (V)}$ 
ThreePhase Formula:
$\text{Amps} (A) = \frac{\text{kW} \times 1000}{\sqrt{3} \times \text{Voltage} (V) \times \text{Power Factor}}$
Examples:

Singlephase calculation: For a 240V singlephase system and a load of 1 kW:
$\text{Amps} = \frac{1 \times 1000}{240} = 4.17A$ 
Threephase calculation: For a 440V threephase system with 7.5 kW and a power factor of 0.8:
$\text{Amps} = \frac{7.5 \times 1000}{\sqrt{3} \times 440 \times 0.8} = 12.31A$
Solved Calculation:
Example 1 (Singlephase system):
Step  Calculation 

Voltage (V)  240V 
Current (A)  10A 
Power Factor (PF)  0.9 
kW Calculation  $kW = \frac{0.9 \times 10 \times 240}{1000}$ 
Result  $kW = 2.16 \, \text{kW}$ 
Answer: The power is 2.16 kW for a 10A current at 240V.
Example 2 (Threephase system):
Step  Calculation 

Voltage (V)  415V 
Current (A)  15A 
Power Factor (PF)  0.85 
kW Calculation  $kW = \frac{0.85 \times 15 \times 415}{1000}$ 
Result  $kW = 5.29 \, \text{kW}$ 
Answer: The power is 5.29 kW for a 15A current at 415V.
What is Amps per kW Calculator?
An Amps per kW Calculator is an accessory that is used to convert between kilowatts (kW) and amps (A) in both singlephase and threephase systems. Indeed, knowing the relationship between kilowatts, voltage, and amperage is essential for electrical system design, load calculations, and power distribution.
Common Tools:
 kW to Amps chart: A quick reference for various voltages and power ratings.
 Amps per kW calculators: Simplify the calculation for different voltage systems, whether 240V, 415V, or 440V.
 3phase amp to kW formula: Especially useful for industrial setups and large electrical systems.
Final Words:
In essence, this calculator is useful for finding out the current that is required for specific loads, sizing electrical components, and ensuring safe operation of electrical systems. This is by far the most valuable tool in your hands.