Kirchhoff's Voltage Law Calculator
Apply Kirchhoff's Voltage Law to verify that voltage drops around a loop sum to the source voltage.
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Sum of Voltage Drops
12.00 V
Unaccounted Voltage0.00 V
Sum of Voltage Drops vs Source Voltage
Kirchhoff's Voltage Law (KVL)
The sum of all voltages around any closed loop equals zero.
Principle
V_source = V_drop1 + V_drop2 + V_drop3 + ...
If drops do not sum to the source, there is an unaccounted component.
Example Calculation
12 V source with drops of 4 V, 5 V, and 3 V.
- 01Sum = 4 + 5 + 3 = 12 V
- 02Unaccounted = 12 - 12 = 0 V
- 03KVL is satisfied.
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