Kilowatt (kW) Calculator
Accurate kilowatt calculations for AC/DC systems
kW Calculator
Compliant with IEC 60034 Standards
Results:
Watts (W): 0.00
Kilowatts (kW): 0.00
Megawatts (MW): 0.00
How to Use the Calculator
AC Single Phase
- Select "AC" system type
- Choose "Single Phase"
- Enter line-to-neutral voltage
- Provide current in amps
- Input power factor (0-1)
AC Three Phase
- Select "AC" system type
- Choose "Three Phase"
- Enter line-to-line voltage
- Provide current in amps
- Input power factor (0-1)
DC Systems
- Select "DC" system type
- Enter voltage
- Provide current in amps
- Power factor is automatically set to 1
Electrical Power Fundamentals
AC Power
In AC systems, power calculations consider:
- Phase configuration (Single/Three)
- Power factor (cosφ)
- Voltage type (Line-to-Line/Line-to-Neutral)
DC Power
- No phase or power factor considerations
- Simple V × I calculation
- Direct power conversion
Key Formulas:
Single Phase: kW = V × I × PF / 1000
Three Phase: kW = √3 × V × I × PF / 1000
DC: kW = V × I / 1000
Calculation Formulas
AC Single Phase:
kW = V × I × PF / 1000
AC Three Phase:
kW = √3 × V × I × PF / 1000
DC Systems:
kW = V × I / 1000
Example Calculation
Three Phase AC System:
Voltage: 400V
Amps: 100A
PF: 0.9
W = √3 × 400V × 10A × 0.9 = 62352W
kW = 62352 / 1000 = 62.35kW
Watts = 62352W | kW = 62.35 kW | MW = 0.062 MW
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