Welding Cost Calculator
A Weld Is Never Just the Filler Wire
Quoting a welding job on material cost alone consistently underbids the actual job, because labor time dwarfs consumable cost on most welds. Getting an accurate number means adding up weld time, labor rate, shielding gas, consumable cost, and shop overhead together — not estimating from any single piece of it.
The Formula
Labor Cost = Weld Time × Labor Rate
Gas Cost = Weld Time × Gas Cost per Hour
Material Cost = (Weld Length / 12) × Consumable Cost per Foot
Total Cost = (Labor + Gas + Material) × (1 + Overhead % / 100)
Worked Example
A 48-inch weld run at 8 inches per minute, $35/hr labor, $2.50/ft consumables, $4/hr shielding gas, and 15% shop overhead:
| Item | Value |
|---|---|
| Weld time | 6.0 minutes (0.100 hr) |
| Labor cost | $3.50 |
| Gas cost | $0.40 |
| Material (consumable) cost | $10.00 |
| Subtotal | $13.90 |
| Overhead (15%) | $2.08 |
| Total cost | $15.98 |
Notice consumable material cost ($10.00) outweighs labor ($3.50) in this particular example — the balance shifts entirely based on weld speed and labor rate, which is why blanket cost rules of thumb don't transfer well between jobs.
Where This Calculation Matters
- Job quoting — building an accurate price for a welding job before committing to it, rather than estimating from experience alone.
- Process comparison — comparing the total cost of different welding processes or consumables that trade off speed against material cost.
- Shop rate justification — showing a customer exactly where the cost of a weld comes from, broken into labor, gas, material, and overhead.
How to Use This Calculator
- Enter Weld Length (in) and Weld Speed (in/min).
- Enter Labor Rate ($/hr) and Consumable Cost ($/ft).
- Optionally enter Gas Cost ($/hr) and Overhead (%).
- Select Calculate to get the full cost breakdown and total.
Related Calculations
If the job also involves cutting stock to length before welding, check material yield with the Kerf Width Calculator.