Welding & Sheet Metal Calculators
Free calculators and field references for welders, fabricators, and sheet-metal shops. Bend allowance, K-factor, heat input, dry film thickness, stamping tonnage — no signup, works on mobile.
Calculators
5
References
1
K-factor range
0.33–0.50
Materials covered
10+
Calculators
References
Tip
Every calculator supports imperial and metric units, shows a worked
example, and links to the relevant reference. K-factor, bend allowance,
and springback values are empirical averages — calibrate with test
coupons before committing production material.
No signal in the ditch, none inside the vessel
Log every pass before the CWI signs off
Welding & Sheet Metal Toolkit bands kJ/in against your WPS, stacks the pass log, and prints the day-sheet citing AWS D1.1 / ASME IX. Offline. Pay once.
CalcSpec tools are estimators for qualified welders, fabricators, and mechanical engineers. Results do not replace Machinery's Handbook, AWS / ASME welding procedures, manufacturer tooling data, or the judgment of a certified welding inspector.