AWG Wire Gauge & Voltage Drop
embedcalc_awg_wireCompute AWG wire properties and voltage drop for copper pairs. Input AWG, supply voltage, current, one-way length, and temperature to get diameter, loop resistance, drop percentage, and verdict.
Instructions
AWG wire properties (ASTM B258) and round-trip voltage drop for a copper pair: diameter, area, loop resistance (2× length, go & return), drop %, and a PASS/WARNING/FAIL verdict (<3% / 3-5% / >5%).
Args: awg (e.g. 20), supply_v, current_a, length_m (one-way), temp_c (default 20). Returns (structured): { diameter_mm, area_mm2, loop_resistance_ohm, voltage_drop_v, drop_percent, verdict }. Example: AWG20, 5 V, 2 A, 1 m -> 0.067 Ω loop, 2.7% drop, PASS.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| awg | Yes | Wire gauge AWG number | |
| temp_c | No | Conductor temperature in °C | |
| length_m | Yes | One-way cable length in m (loop = 2×) | |
| supply_v | Yes | Supply voltage in V | |
| current_a | Yes | Load current in A |
Output Schema
| Name | Required | Description | Default |
|---|---|---|---|
| verdict | Yes | ||
| area_mm2 | Yes | ||
| diameter_mm | Yes | ||
| drop_percent | Yes | ||
| voltage_drop_v | Yes | ||
| loop_resistance_ohm | Yes |