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AWG Wire Gauge & Ampacity Calculator

Determine American Wire Gauge (AWG) diameter, cross-sectional area, electrical resistance, and maximum NEC ampacity.

Cu
NEC Ampacity Limit:
-- A
Wire Diameter:
--
Cross-Sectional Area:
--
DC Resistance (Cu):
--
Circular Mils:
--
Click Calculate to inspect wire gauge standards.
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How to use AWG Wire Gauge & Ampacity Calculator

  1. Select your target AWG wire size.
  2. Select the conductor material (Copper or Aluminum).
  3. Choose the insulation temperature rating (60°C, 75°C, or 90°C).
  4. Read the calculated wire gauge physical specs and NEC-compliant ampacity limits.

AWG Wire Gauge & Ampacity Calculator అంటే ఏమిటి?

This AWG wire calculator computes electrical and physical parameters for standard solid wire sizes (from 4/0 AWG down to 30 AWG) using standard ASTM and NEC (National Electrical Code) specifications for copper and aluminum conductors.

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FAQ

What is AWG?
American Wire Gauge (AWG) is a standardized wire gauge system used in North America for the diameters of round, solid, nonferrous, electrically conducting wire.
What is ampacity?
Ampacity is the maximum current, in amperes, that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.

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Author

OH
Omar Hassan"The Number Cruncher"

Engineer & Unit Conversion Specialist

Omar is a mechanical engineer by training and a unit-conversion enthusiast by passion. He has built calibration systems for aerospace and automotive manufacturers and knows firsthand how a single decimal error can cost millions in rework. His mission is to make every conversion instant, accurate, and accessible to everyone, whether they are a student, tradesperson, or practicing engineer, with no advanced degree required.

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