Power Calculator
Easily calculate electric power, voltage, current, and resistance for DC and AC circuits. Enter any two values for DC or the required values for AC to get the results instantly.
DC Power Formulas
- P = V × I
- V = I × R
- P = V² / R
- P = I² × R
- R = V / I
AC Power Formulas
- Apparent Power (S) = V × I
- Real Power (P) = V × I × PF
- Reactive Power (Q) = V × I × sin(φ)
- Power Factor (PF) = cos(φ)
Example Calculations
- DC: V = 12V, I = 2A → P = 12 × 2 = 24 W
- AC: V = 230V, I = 5A, PF = 0.8 → P = 230 × 5 × 0.8 = 920 W
Power Calculation Table
Type | V (V) | I (A) | R (Ω) | P (W) |
DC | 12 | 2 | 6 | 24 |
AC | 230 | 5 | - | 920 |
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