Arc Time Calculator
Welding hours for a job from weld weight and deposition rate.
The estimator's secret: arc time is the SMALL number. Fit-up, grinding, repositioning and waiting eat 70% of the day — operating factor is where jobs are won or lost.
Formula
Arc Time Calculator is a free arc time for welding engineers, fabricators and CWI inspectors — instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About Arc Time Calculator
Welding hours for a job from weld weight and deposition rate. The calculation implements arc = kg/rate; clock = arc/operating factor (Welding cost estimation — Lincoln). The estimator's secret: arc time is the SMALL number. Fit-up, grinding, repositioning and waiting eat 70% of the day — operating factor is where jobs are won or lost.
How to use Arc Time Calculator
- 1Enter Total weld metal in kg.
- 2Enter Deposition rate in kg/h.
- 3Enter Operating factor (arc-on %) in % (Stick 20–30 · MIG semi-auto 30–45 · robot 70–85).
- 4Read Pure arc time, Clock (paid) hours instantly — no submit button needed.
- 5Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Arc Time Calculator?
- ✓Implements the standard formula — arc = kg/rate; clock = arc/operating factor
- ✓Reference cited on-page: Welding cost estimation — Lincoln
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Live worked example: the substitution recomputes from your numbers
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the Arc Time Calculator use?+
It computes arc = kg/rate; clock = arc/operating factor, per Welding cost estimation — Lincoln. The formula is displayed under the result along with a worked example substituted with your own inputs.
What should I keep in mind when using this calculator?+
The estimator's secret: arc time is the SMALL number. Fit-up, grinding, repositioning and waiting eat 70% of the day — operating factor is where jobs are won or lost.
Does this follow AWS/IS welding codes?+
Each tool implements the formula from the cited code or handbook (AWS D1.1, IS 800, ISO/EN). Qualified WPS values always govern over any calculator for code work.
Is the Arc Time Calculator free to use?+
Yes — completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
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