Electrical Formulas Canada
Fully coupled — change any value and every other quantity, chart, and waveform reacts in real time.
Live values — edit any one, the others follow
The two most recently edited fields are the knowns — the other two solve automatically. Use the input arrows to step values up or down and watch every chart react.
All Ohm's Law relationships
V = I × R
Voltage
120.000V
V = √(P × R)
Voltage from P, R
120.000V
I = V / R
Current
10.000A
I = √(P / R)
Current from P, R
10.000A
R = V / I
Resistance
12.000Ω
P = V × I
Power
1200W
P = I² × R
Power from I, R
1200W
P = V² / R
Power from V, R
1200W