1. What is American Wire Gauge (AWG)?

The American Wire Gauge (AWG) system is a standardized wire gauge system used predominantly in North America for the diameters of round, solid, nonferrous, electrically conducting wire. The gauge numbers are inversely related to the wire diameter.

2. How Does the Calculator Work?

The calculator uses the AWG formula:

Where:

• \( diameter \) — Wire diameter in millimeters
• 0.127 mm — Standard reference diameter

Explanation: The formula converts a wire's diameter measurement into the corresponding AWG number.

3. Importance of Wire Gauge

Details: Proper wire gauge selection is crucial for electrical safety and performance. Too small a gauge can cause overheating and fire hazards, while too large is unnecessarily expensive.

4. Using the Calculator

Tips: Measure the wire diameter precisely in millimeters and enter the value. The calculator will determine the closest standard AWG number.

5. Frequently Asked Questions (FAQ)

Q1: What's the relationship between AWG and wire diameter?
A: As AWG number increases, the wire diameter decreases. For example, AWG 10 is thicker than AWG 12.

Q2: What are common AWG sizes?
A: Common sizes range from AWG 40 (0.0799 mm) to AWG 0000 (11.684 mm).

Q3: How does AWG relate to current capacity?
A: Lower AWG numbers (thicker wires) can safely carry more current. Always consult ampacity charts for specific applications.

Q4: What's the difference between AWG and SWG?
A: SWG (Standard Wire Gauge) is a British standard with slightly different diameter specifications than AWG.

Q5: Can this calculator be used for stranded wire?
A: For stranded wire, measure the diameter of one strand and calculate, but note that total current capacity differs from solid wire.