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DC AWG Wire Candidate Calculator

Compare documented AWG current allowances, connector limits and actual loop resistance; identify wire candidates that meet the entered voltage-drop limit.

Use this result well

Inputs that matter
Design DC current (A), Supply voltage (V), Complete loop conductor length (m), Allowed loop voltage drop (V), and 2 more
Output to expect
Documented DC wire candidates
  • Check the units and required inputs before comparing results.
  • Keep the assumptions with a copied result so you can reproduce the calculation later.
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Reference & details

How it works

Documented DC wire candidates

Compare actual AWG wire candidates using their permitted current, resistance and connector limit. Calculate the complete outgoing-and-return DC loop at the specified resistance conditions. AWG alone does not establish allowable current.

Loop R = documented ohm/m × total conductor length; drop = I × loop R; loss = I² × loop R.

Updated: September 2026

Example Scenarios

Try this example to see the calculation, then enter actual documented values and preserve the measurement conditions. A failed or unresolved comparison is part of the record.

→ 2 documented candidate(s) fit

FAQ

Compare actual AWG wire candidates using their permitted current, resistance and connector limit. Calculate the complete outgoing-and-return DC loop at the specified resistance conditions. AWG alone does not establish allowable current.

Use the exact equipment data, measurement point, operating conditions and units described in the selected mode. Record source documents, dates and unresolved conditions in Sources and assumptions. Built-in examples illustrate arithmetic; they are not manufacturer ratings or approved designs.

Use Save planning case for an explicit local history entry. Copy MD keeps current inputs and notes; Download CSV exports the result breakdown. Export portable copies before clearing storage and save a separate case after changing equipment, conditions or measurements.

About DC AWG Wire Candidate Calculator

Compare actual AWG wire candidates using their permitted current, resistance and connector limit. Calculate the complete outgoing-and-return DC loop at the specified resistance conditions. AWG alone does not establish allowable current.