Amps to kVA Calculator
Utility load factor auditing, checking transformer loading percentage. Calculates total apparent power demand from measured circuit current.
Step-by-Step Derivation ▼ Show Steps
Calculations adhere to standard electrical engineering physics and National Electrical Code (NFPA 70) regulations.
Engineering Principles & Calculations
This calculator uses the exact mathematical relationships between Current (Amps), Voltage (V), Phase Type (1Φ or 3Φ) to determine Apparent Power (kVA). In practical installations, factors such as ambient raceway temperature, harmonic distortion, duty cycle continuous operation, and conductor impedance must be accounted for by a certified electrician.
Calculates total apparent power demand from measured circuit current.
Typical Application & Industry Guidelines
Utility load factor auditing, checking transformer loading percentage.
Amps to kVA Calculator Benchmark Lookup Table
| Amperage | kVA @ 120V 1-Phase | kVA @ 208V 3-Phase | kVA @ 480V 3-Phase |
|---|---|---|---|
| 20 Amps | 2.4 kVA | 7.2 kVA | 16.6 kVA |
| 50 Amps | 6.0 kVA | 18.0 kVA | 41.6 kVA |
| 100 Amps | 12.0 kVA | 36.1 kVA | 83.1 kVA |
| 200 Amps | 24.0 kVA | 72.1 kVA | 166.3 kVA |
| 400 Amps | 48.0 kVA | 144.3 kVA | 332.6 kVA |