Tools
Engineering Tools & Calculators
Free interactive tools for wire and connector engineering.
Looking for definitions instead? Check the Connector & Cable Glossary.
Connector Selector Wizard
Answer a few quick questions to get a tailored connector type recommendation with links to relevant guides.
Voltage Drop Calculator
Calculate voltage drop for a wire run based on gauge, length, and current.
AWG to mm² Converter
Convert between American Wire Gauge and metric cross-sectional area.
Circular Mils to mm² Converter
Convert wire cross-sectional area between circular mils and mm².
Wire Weight Calculator
Estimate wire weight by gauge, length, and conductor material.
Power Dissipation Calculator
Calculate heat loss in a wire run using P = I²R.
Skin Effect Calculator
Calculate skin depth for copper and aluminum conductors at any frequency.
Ohm's Law Calculator
Solve for voltage, current, or resistance given any two values.