Heating Wire Resistance Calculator

Wire Resistance & Composition Tool

Calculate Ohms/Meter for Precision Coil Winding

Alloy Comparison Guide

Material Composition Max Temp Key Benefit
Kanthal A1 FeCrAl 1400°C Highest temp, long life
Nichrome 80 80% Ni, 20% Cr 1200°C Stable resistance, non-magnetic

Wilson Heat Note: Resistance increases as the wire gets hot. For Kanthal A1, multiply the cold resistance by approx. 1.04 when operating at 1000°C.