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LED resistor calculator tells you what resistor you should use when connecting LEDs in series or parallel.

Convert electrical units with this free led resistor calculator. Essential for electronics and electrical engineering.
LED resistor calculator tells you what resistor you should use when connecting LEDs in series or parallel.
Its Wire Gauge Calculator includes AWG-based diameter conversion in both inches and millimeters, plus cross-sectional area and resistance outputs. The page explains the AWG formulas and provides reference values, making it useful for both quick conversion and verification.
This AWG chart includes a row for 2 AWG with diameter, cross‑sectional area, resistance, and ampacity. It serves as a detailed lookup for #2 gauge wire data. ([electricaltechnology.org](https://www.electricaltechnology.org/2022/04/american-wire-gauge-awg-chart-wire-size-ampacity-table.html))