PRELIMINARY ENGINEERING TOOL
Amps to kW calculator
Convert electrical load ratings with transparent assumptions and a substituted formula.
Inputs
Calculation steps
P = 230.000 × 10.000 × 0.800
Formula ID: POWER_SINGLE_PHASE_A_V2
System voltage factor: 230.000
Assumptions and references
Use voltage, current and power factor from the same operating condition. The balanced three-phase mode uses line-to-line voltage and line current. This preliminary estimate does not replace representative power or energy measurements.
Compare 230 V and 415 V worked examples →UNDERSTAND THE TOOL
What this calculator does
Estimate active input power from a current reading or design current. Current alone is not enough; the system voltage and AC power factor also matter.
How to use it
- Choose DC, single-phase AC or balanced three-phase AC.
- Enter current and voltage from the same operating condition.
- Enter a measured or supportable AC power factor.
- Compare the result with nameplate or measured power data.
Fields and meanings
- Current
- Measured or design line current in amperes.
- Voltage
- Nominal or measured voltage for the same operating point.
- Power factor
- The relationship between active and apparent AC power.
- System
- Controls the applicable DC, single-phase or balanced three-phase formula.
Review required. A momentary clamp-meter reading is not an energy study or verified equipment rating.
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