Weldwise: Welding Calculator

Settings, heat input, preheat and carbon equivalent — the numbers a welder needs, in seconds.

Stop guessing your welder settings.

Weldwise gives you a clean starting point for MIG, TIG, Stick and flux-core in seconds. Pick your process, material and thickness and get recommended amperage, voltage, wire or electrode size, wire feed speed, shielding gas and polarity.

FREE

• Settings finder: MIG, TIG, Stick and flux-core on mild steel, stainless and aluminum
• Dual shield and metal-core alongside MIG, TIG, Stick and self-shielded — with rod and wire amperage by diameter, from 0.023 in wire to 3/16 in rod
• Heat input calculator in kJ/mm or kJ/in, with the arc efficiency factor that codes such as AWS D1.1 and ISO/TR 18491 ask for
• Reference charts: electrodes, shielding gases, polarity, tungsten types and the fix for every common weld fault
• Full metric and imperial, in 11 languages
• Works on iPhone and iPad, fully offline, with no account and no ads

WELDWISE PRO (one-time purchase, no subscription)

• Shielding gas calculator: usage per job and what the cylinder actually costs
• Filler metal calculator: deposited weight, how much to buy once stub-end and spatter loss are counted, and the cost in your own currency
• Preheat and carbon equivalent: CE (IIW) and Pcm from the steel grade or your own mill certificate, with the preheat and maximum interpass temperature the joint calls for
• Fillet weld size and strength: effective throat, allowable load per inch and for the whole run, and whether your leg size clears the code minimum for that thickness
• Every future Pro tool included: pay once, yours forever

Built by an independent developer for people who actually weld. Every value is a starting point. Always confirm against your WPS, the machine chart and a test coupon.