How do you calculate filler wire cost?

Multiply deposition rate (lb/hr) by arc-on time (hr) to get pounds consumed, then multiply by price per pound. At 8 lb/hr over 6 hours at $2.25/lb, that's 48 lb consumed and $108 of filler wire.

What is a typical filler wire deposition rate?

It depends on process and amperage: short-circuit MIG might deposit 2-5 lb/hr, spray-transfer or flux-cored 8-15 lb/hr, and submerged arc far more. The 8 lb/hr in the example is a solid mid-range MIG or FCAW figure.

Why is arc-on time lower than clock time?

Operator factor — a welder spends much of the shift positioning, tacking and cleaning, not arcing. Six hours of arc-on time might span a full 8-10 hour shift, so use actual arc-on time, not paid hours, or you'll overstate wire cost.

Filler wire cost vs total welding cost — how do they relate?

Filler wire is one consumable line; total welding cost also includes labor, shielding gas, power and equipment. Wire is often 10-25% of the total, but on high-deposition production it can be the single biggest consumable.

How do I account for wire I buy versus wire in the joint?

This tool gives deposited weight. To find spool weight to purchase, divide by deposition efficiency — about 0.9 for solid MIG, lower for flux-cored with spatter and slag — so 48 lb deposited might mean buying roughly 53 lb at 0.9 efficiency.

How can I reduce filler wire cost?

Reduce weld metal volume with tighter joint design and correct fit-up, raise deposition efficiency by cutting spatter, and buy wire in bulk packaging. Over-welding a fillet by even 1 mm of leg length adds disproportionate wire weight.

Welding & Fabrication calculator

Filler Wire Cost Calculator

Filler wire cost is the dollar value of consumable electrode wire — MIG, flux-cored or TIG rod — burned into a weldment, driven by how fast you deposit metal, how long the arc is actually on, and what the wire costs per pound. Fabrication estimators and welding engineers use it because filler metal is often the largest consumable line on a job and the easiest to underestimate when quoting long production runs. Unlike labor, it scales directly with deposited weld metal, so it's the number that tells you whether a joint design is wire-hungry. Nail it and you stop quoting away your margin one spool at a time.

What this calculator does

Estimate filler wire cost from deposition rate, arc-on hours, and wire price per pound.
Use it to put a defensible filler wire number on a quote or to compare a flux cored job against an equivalent solid wire job.
It multiplies deposition rate by arc-on time to get pounds of filler consumed, then multiplies by wire price to get total filler cost.

Formula used

Filler wire consumed = filler wire deposition rate × arc-on time on the job
Total filler wire cost = filler wire consumed × filler wire price

Inputs explained

Filler wire deposition rate:
Arc-on time on the job:
Filler wire price:

How to use the result

Use it when quoting a weld job, comparing wire processes, or budgeting consumables for a production run.
It uses deposited-weight economics and does not subtract spatter, stub loss or slag; add a deposition-efficiency factor (roughly 0.6-0.98 by process) for spool-purchased weight versus metal in the joint.

Current U.S. benchmarks

The producer price index for steel mill products stands at 348.53 (BLS, May 2026), up 6.7% from a year earlier. Quotes priced off last quarter's material cost miss this move.
Industrial electricity averages 8.66 cents per kWh across the U.S. (EIA, Apr 2026), up 5.5% from a year earlier. Energy-intensive steps carry this directly into unit cost.
U.S. iron and steel imports ran $2.1B in May 2026 (Census International Trade). The U.S. ran a trade deficit of $0.4B in the category that month. Import volumes are the pressure gauge behind tariff and reshoring decisions.
The U.S. has 53,790 fabricated metal products establishments employing about 1,441,471 workers (Census County Business Patterns, 2023).

Common questions

How do you calculate filler wire cost? Multiply deposition rate (lb/hr) by arc-on time (hr) to get pounds consumed, then multiply by price per pound. At 8 lb/hr over 6 hours at $2.25/lb, that's 48 lb consumed and $108 of filler wire.
What is a typical filler wire deposition rate? It depends on process and amperage: short-circuit MIG might deposit 2-5 lb/hr, spray-transfer or flux-cored 8-15 lb/hr, and submerged arc far more. The 8 lb/hr in the example is a solid mid-range MIG or FCAW figure.
Why is arc-on time lower than clock time? Operator factor — a welder spends much of the shift positioning, tacking and cleaning, not arcing. Six hours of arc-on time might span a full 8-10 hour shift, so use actual arc-on time, not paid hours, or you'll overstate wire cost.
Filler wire cost vs total welding cost — how do they relate? Filler wire is one consumable line; total welding cost also includes labor, shielding gas, power and equipment. Wire is often 10-25% of the total, but on high-deposition production it can be the single biggest consumable.
How do I account for wire I buy versus wire in the joint? This tool gives deposited weight. To find spool weight to purchase, divide by deposition efficiency — about 0.9 for solid MIG, lower for flux-cored with spatter and slag — so 48 lb deposited might mean buying roughly 53 lb at 0.9 efficiency.

Last reviewed 2026-05-12.