MIG Wire Speed Calculator
Wire feed speed from target current — by wire size (burn-off relation).
On a constant-voltage MIG set, WIRE SPEED IS YOUR AMPERAGE — the dial marked 'A' is mostly fiction. Set WFS for current, then voltage for arc length/bead shape.
Formula
MIG Wire Speed Calculator is a free wire feed speed 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 MIG Wire Speed Calculator
Wire feed speed from target current — by wire size (burn-off relation). The calculation implements WFS ≈ k×I (k: 0.8mm→0.055 · 1.0→0.040 · 1.2→0.027 m/min per A) (Miller/Lincoln setup charts (burn-off curves)). On a constant-voltage MIG set, WIRE SPEED IS YOUR AMPERAGE — the dial marked 'A' is mostly fiction. Set WFS for current, then voltage for arc length/bead shape.
How to use MIG Wire Speed Calculator
- 1Enter Target current in A.
- 2Enter Wire diameter in mm (0.8 / 1.0 / 1.2 common).
- 3Read Wire feed speed instantly — no submit button needed.
- 4Need US units? Flip the SI/Imperial toggle and every field converts.
Why use MIG Wire Speed Calculator?
- ✓Implements the standard formula — WFS ≈ k×I (k: 0.8mm→0.055 · 1.0→0.040 · 1.2→0.027 m/min per A)
- ✓Reference cited on-page: Miller/Lincoln setup charts (burn-off curves)
- ✓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 MIG Wire Speed Calculator use?+
It computes WFS ≈ k×I (k: 0.8mm→0.055 · 1.0→0.040 · 1.2→0.027 m/min per A), per Miller/Lincoln setup charts (burn-off curves). 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?+
On a constant-voltage MIG set, WIRE SPEED IS YOUR AMPERAGE — the dial marked 'A' is mostly fiction. Set WFS for current, then voltage for arc length/bead shape.
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 MIG Wire Speed 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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