Welding Rod Calculator
Determine deposited weld metal weight, electrode stub loss, and total filler metal pounds to order for structural and pipe welds.
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How Filler Metal Consumption Is Calculated
For a standard 45-degree equal-leg fillet weld, the cross-sectional area of the isosceles right triangle is 0.5 × Leg × Leg. Steel density is 0.283 lbs per cubic inch.
Deposited Weight (lbs) = Cross Section Area (sq in) × (Length ft × 12) × 0.283
Purchased Weight = Deposited Weight / Deposition Efficiency
Frequently Asked Questions
How many pounds of 7018 are in a standard can?
Standard commercial SMAW stick electrodes (like Lincoln Excalibur 7018) are packaged in 50 lb hermetically sealed steel cans, or 10 lb plastic containers.
Why does MIG wire have higher efficiency than stick rods?
MIG solid wire is fed continuously with zero stub loss and creates zero slag, yielding 88% to 92% deposition efficiency compared to stick’s 55% to 65%.
Should weld reinforcement (crown) be factored in?
Yes. Most estimators add 10% to 15% extra volume to account for weld face convexity (crown reinforcement) and root penetration.