Household calculator
Wire Voltage Drop Calculator
Use this calculator to estimate how much voltage a cable run may lose before choosing a conductor size.
Household calculator
Wire Voltage Drop Calculator
Estimate cable voltage drop from length, current, conductor size and material.
Result
- Loop resistance
- 0.28 ohms
- Voltage drop
- 2.8 V
- Drop percentage
- 1.22%
- Approximate load
- 2,300 W
Cable sizing must also account for breaker rating, installation method, heat, insulation and local electrical code.
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