Welding Calculators

Every calculator and chart on the site, grouped by the job. Each one shows the formula and the steps with your numbers, keeps its inputs in the link so you can share or repeat a result, and prints a dated record. Nothing you type is uploaded.

Cables, wire and gas

• Welding cable size chart — lead size by current, length and voltage drop.
• MIG wire size chart — wire diameters, feet per pound and spool length.
• TIG cup size chart — cup numbers, inside diameters and gas velocity.
• Welding gas bottle size chart — cylinder sizes, gas content and run time.

Machine settings

• MIG welding settings chart — starting amperage and wire feed speed by thickness.
• Stick welding amperage chart — amperage range by electrode and diameter.
• TIG amperage chart — starting current by metal and thickness.
• Tungsten electrode chart — tungsten colors, types and current by diameter.
• TIG filler rod chart — filler metal by base metal, rods per pound.

Symbols, electrodes and metals

• Welding symbol chart — build and read welding symbols.
• Welding rod chart — what stick electrode numbers mean.
• Metal melting point chart — melting points of pure metals.
• Welding positions chart — 1G–6G and 1F–4F positions with ISO codes.

Safety

• Welding shade chart — lens shade by process and current.

Procedure, strength and cost

• Heat input calculator — arc energy and heat input, travel speed.
• Welding travel speed calculator — travel speed for a target weld size.
• Carbon equivalent calculator — CE (IIW), Pcm and CET.
• Weld strength calculator — fillet weld capacity, size and length.
• Stitch weld calculator — intermittent weld count and pitch.
• Welding cost calculator — filler, time and cost per weld.