Volts to Amps Calculator

Convert voltage to current using power (watts) or resistance (ohms)

Result

0 Amps

How to Convert Volts to Amps

Converting voltage (V) to current (I) requires using either power (P) or resistance (R). Here are the two main methods:

Using Power (Watts Law)

I = P ÷ V

where:

  • I = Current in Amperes (A)
  • P = Power in Watts (W)
  • V = Voltage in Volts (V)

Using Resistance (Ohm's Law)

I = V ÷ R

where:

  • I = Current in Amperes (A)
  • V = Voltage in Volts (V)
  • R = Resistance in Ohms (Ω)

Common Applications