Solve for voltage (V), current (I), resistance (R), or power (P). Enter any two known values.
Known Values — enter any two
Solved Values
V = I × R · P = V × I = I²R = V²/R
V=Volts · I=Amperes · R=Ohms (Ω) · P=Watts
📐 Accuracy Note: Results are calculated using standard formulas and are provided for educational and reference purposes. While we strive for accuracy, floating-point arithmetic and rounding may introduce small errors. Do not rely on this tool for safety-critical, professional, or high-precision applications without independent verification.