Volage & Load Calculators

Below are handy calculators. The AWG Sizing Calculator helps you select correct cabling. The Off-Grid Load & System Sizer calculator sums up your total Wh/day, estimating common loads, and you can refine duty and average hours of use. The Voltage Drop Calculator compares different Cable/wire sizes (AWG) to their voltage drops over a specfic Distance. Use these tools at your own risk.


AWG Sizing Calculator

AWG Reference (Resistance per 1000 ft)
AWG
Copper Ω/kft
Aluminum Ω/kft
Approx. Ampacity*
*Ampacity is a rough guide. Always check NEC or local code for AC branch circuits and manufacturer guidance for DC.

Off-Grid Load & System Sizer

Appliance Watts Hrs Qty Duty% Wh/day
Total 0



Voltage Drop Calculator

K constant (Estimated method): 12.9 cmil-Ω/ft @ 75 °C.

Results

Voltage drop
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Drop percent
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Load end voltage
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Calculated current
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