TIG Amperage Calculator
Calculate recommended TIG welding amperage, tungsten size, filler rod, cup size, and gas flow based on material type and thickness.
Different metals need different amperage, polarity, and filler rod. Aluminum runs on AC; the rest on DCEN.
Enter decimal inches — 1/16"=0.063, 1/8"=0.125, 3/16"=0.188, 1/4"=0.250
Must match your amperage range — too small will overheat, too large makes it hard to start and focus the arc.
Generally match rod diameter to material thickness. Smaller rod = more control, larger rod = faster fill.
Tee and lap joints pull heat away faster, requiring slightly more amperage than butt joints.
Related Calculators
Get recommended MIG welder settings — voltage, wire feed speed, and gas flow — for carbon steel, stainless, and aluminum by material thickness.
Calculate recommended shielding gas flow rate and tank duration for MIG and TIG welding based on nozzle/cup size and conditions.
Calculate welding heat input in kJ/in from voltage, amperage, and travel speed. Includes process efficiency factors for SMAW, GMAW, GTAW, FCAW, and SAW.