Wire Gauge & Ampacity Chart
AWG to mm² conversions, ampacity by insulation, and voltage drop over a run length for control panel and field wiring.
Free, no login. Your inputs are saved in this browser. Values are engineering references — verify against manufacturer data and applicable codes before a final design.
Engineering Toolbox
Keep scrolling to bring the intro back
Loading toolbox
Related tools
- Electrical Power Calculator
Free electrical power calculator: watts, amps and volts for AC and DC circuits, plus an equipment list that totals a panel load.
- M12 & M8 Connector Pinouts and Protocols
M12 and M8 connector pinouts with A, D and X coding, plus RJ45, DB9 and USB, for PROFINET, EtherNet/IP, EtherCAT, IO-Link and DeviceNet.
Everything in the toolbox
- Conveyor Belt Pull & Drive Calculator
- UHMW Wearstrip Span Calculator
- MDR Hub Motor Selection Chart
- Conveyor Speed & Throughput Calculator
- Incline Conveyor Calculator
- Conveyor Throughput Calculator — lb/hr to Packages per Minute and Belt Load
- Line Flow Simulator
- Light Curtain Safety Distance Calculator
- Guard Opening & Reach Distance (ISO 13857)
- Pneumatic Cylinder Force Calculator
- ISO 286 Hole / Shaft Fit Tolerance Calculator
- Bolt, Tap & Drill Size Chart
- Sheet Metal Gauge Chart
- Friction Coefficient Chart
- Air Fittings & Thread Chart
- Expression Calculator
- Area Calculator