Free Wire Gauge Calculator - AWG Size Calculator
Use our free wire gauge calculator to determine the correct American Wire Gauge (AWG) for your electrical projects. Calculate wire size based on current, voltage, wire length, and material. Our wire gauge calculator ensures proper wire sizing for safety and electrical code compliance.
Enter Parameters
Calculation Results
Your results will appear here.
Enter your parameters and click "Calculate" to see the recommended wire gauge and other details.
How to Use the Wire Gauge Calculator
Calculate the correct wire gauge in three simple steps using our free AWG calculator.
1. Enter Wire Specifications
Input your electrical circuit parameters: current (amps), voltage (volts), wire length, and wire material (copper or aluminum). Accurate wire gauge calculation requires these essential values.
2. Calculate Wire Gauge
Click the calculate button and our wire gauge calculator instantly determines the correct AWG size, voltage drop, and wire resistance for your electrical project.
3. Get AWG Recommendation
Receive the recommended AWG wire gauge size with detailed calculations including ampacity, voltage drop percentage, and wire resistance to ensure electrical safety.
Wire Gauge Calculator FAQ
Common questions about using our wire gauge calculator and AWG sizing.
About Our Wire Gauge Calculator
Our free wire gauge calculator is designed to help electricians, engineers, and DIY enthusiasts determine the correct American Wire Gauge (AWG) size for any electrical application. Whether you're working on residential wiring, automotive electrical systems, or industrial installations, our wire gauge calculator provides accurate wire sizing recommendations.
The wire gauge calculator takes into account critical factors including electrical current (amperage), voltage, wire length, and wire material (copper or aluminum). By considering these parameters, our AWG calculator ensures your wire selection meets National Electrical Code (NEC) requirements and maintains voltage drop below the recommended 3% threshold.
Using a wire gauge calculator is essential for electrical safety. Undersized wire can overheat and create fire hazards, while oversized wire increases project costs unnecessarily. Our wire size calculator finds the optimal balance between safety, performance, and cost-effectiveness for your specific application.
This wire gauge calculator supports wire sizes from AWG 20 to AWG 0000 (4/0), covering most common electrical applications. The calculator provides comprehensive results including recommended wire gauge, maximum current capacity (ampacity), voltage drop percentage, wire resistance, and wire length in both imperial and metric units.
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Help others calculate the correct wire gauge for their electrical projects. Bookmark this free wire gauge calculator and share it with colleagues and friends working on electrical installations.