VOLTS=Voltage, AMPS=Current, OHMS=Resistance, WATTS=Power
Insert any TWO numeric values then press the Ohm's Law button.
Volts
Watts
Ohms
Amperes
OHM’S LAW CALCULATOR
Symbolic:E =VOLTS ~or~ (V = VOLTS) P =WATTS ~or~ (W = WATTS) R = OHMS ~or~ (R = RESISTANCE) I =AMPERES ~or~ (A = AMPERES) HP = HORSEPOWER PF = POWER FACTOR kW = KILOWATTS kWh = KILOWATT HOUR VA = VOLT-AMPERES kVA = KILOVOLT-AMPERES C = CAPACITANCE EFF = EFFICIENCY (expressed as a decimal) |
| AMPS= | WATTS÷VOLTS | I = P ÷ E | A = W ÷ V |
| WATTS= | VOLTS x AMPS | P = E x I | W = V x A |
| VOLTS= | WATTS ÷ AMPS | E = P ÷ I | V = W ÷ A |
| HORSEPOWER= | (V x A x EFF)÷746 | ||
| EFFICIENCY= | (746 x HP)÷(V x A) |
| AMPS= | WATTS÷(VOLTS x PF) | I=P÷(E x PF) | A=W÷(V x PF) |
| WATTS= | VOLTS x AMPS x PF | P=E x I x PF | W=V x A x PF |
| VOLTS= | WATTS÷AMPS | E=P÷I | V=W÷A |
| VOLT-AMPS= | VOLTS x AMPS | VA=E x I | VA=V x A |
| HORSEPOWER= | (V x A x EFF x PF)÷746 | ||
| POWERFACTOR= | INPUT WATTS÷(V x A) | ||
| EFFICIENCY= | (746 x HP)÷(V x A x PF) |
| AMPS= | WATTS÷(1.732 x VOLTS x PF) | I = P÷(1.732 x E x PF) |
| WATTS= | 1.732 x VOLTS x AMPS x PF | P = 1.732 x E x I x PF |
| VOLTS= | WATTS÷AMPS | E=P÷I |
| VOLT-AMPS= | 1.732 x VOLTS x AMPS | VA=1.732 x E x I |
| HORSEPOWER= | (1.732 x V x A x EFF x PF)÷746 | |
| POWERFACTOR= | INPUT WATTS÷(1.732 x V x A) | |
| EFFICIENCY= | (746 x HP)÷(1.732 x V x A x PF) |