Wire HarnessEngineering Calculators
Professional engineering calculators for wire harness design, cable sizing, and electrical calculations. Free tools used by engineers worldwide.
AWG to mm² Converter
Convert between American Wire Gauge (AWG) and metric cross-sectional area (mm²). Get wire diameter and resistance data instantly.
Keywords: AWG converter, wire gauge calculator, mm2 to AWG
Voltage Drop Calculator
Calculate voltage drop across wire harness and cable assemblies. Ensure your wire size meets electrical requirements.
Keywords: voltage drop calculator, cable voltage drop, wire resistance
Wire Size Calculator
Determine the minimum wire size needed for your application based on current, length, voltage, and acceptable voltage drop.
Keywords: wire size calculator, cable sizing, ampacity calculator
Why Use Our Calculators?
Industry-standard calculations based on ASTM, NEC, and IEEE standards
Instant Results
Get accurate calculations in real-time without complex formulas or spreadsheets.
Industry Standards
Based on ASTM B258, NEC voltage drop guidelines, and copper resistivity standards.
100% Free
No registration, no hidden fees. Professional engineering tools available to everyone.
Calculator Comparison Table
| Tool | Primary Output | Best Use |
|---|---|---|
| AWG to mm² Converter | Equivalent size, diameter, resistance | Translate BOM and drawing units |
| Voltage Drop Calculator | Voltage loss and percentage | Check branch performance under load |
| Wire Size Calculator | Minimum copper area and AWG guidance | Select conductor size early in design |
Frequently Asked Questions
Who are these calculators for?
They are for design engineers, sourcing teams, and manufacturing reviewers who need quick checks before issuing drawings or requesting quotes.
Do the tools replace formal engineering review?
No. They are screening tools that support quoting and design iteration before full validation, standards review, and production release.
Why group these calculators together?
Wire size, voltage drop, and AWG conversion are linked decisions, so engineers often move between them during the same harness review.
Can I use the results for cable assemblies as well as harnesses?
Yes. The math applies to both, although branch complexity and packaging constraints are usually higher in a wire harness.
What should I do after using a calculator?
Confirm the result against insulation, temperature, connector, and testing requirements before releasing the final BOM or drawing package.