CraftSprint
178 free tools · CraftSprint AI · 100% in your browser
Enter any two of voltage, current, resistance and power to calculate the other two instantly.
Fill in exactly two values and leave the other two empty.
Voltage equals current times resistance (V = I × R). Power is P = V × I, which also gives P = I² × R and P = V² ÷ R.
Volts (V), amperes (A), ohms (Ω) and watts (W).
