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Calcimator

Laser Cutting Cost Calculator

Calculate per-part laser cutting cost from material, thickness, cut length, and machine rate.

About this calculator

Laser cutting cost per part is really three separate costs stacked together, and this calculator keeps them visible individually because they respond to completely different levers. Machine cost is time-based: cutting speed starts from a baseline that varies by material — mild steel and stainless cut more slowly than aluminum's higher baseline speed, while copper and brass cut slowest of all due to their high thermal conductivity carrying heat away from the cut faster than the laser can compensate — and that baseline speed is then divided by material thickness, since a thicker sheet needs the beam to dwell longer at every point along the cut path. A small per-part pierce time is added for the laser to punch through the material before it can start cutting, itself scaling with thickness since a thicker sheet takes proportionally longer to pierce through.

Material cost is a completely separate calculation based purely on the finished part's weight and your raw material's price per kilogram, entirely independent of cut length or machine time — a small, simple part cut from expensive stainless will have low machine cost but potentially high material cost, while a large, intricate part in cheap material inverts that balance. Setup cost — the fixed time to load a program, position material, and inspect a first piece — gets divided across your entire batch quantity, which is exactly why setup cost per part drops sharply as batch size grows: a 15-minute setup barely registers spread across 1,000 parts but represents real overhead on a batch of just 5.

Inputs

mm
mm
$/hr
min
$/kg
lb

Results

Total Cost per Part

$1.76

Machine Cost per Part$0.63
Material Cost per Part$0.75
Setup Cost per Part$0.38
Total Batch Cost$176.00
Cutting Speed2,667 mm/min
Parts per Hour240
Total Run Time40 min
How to Use This Calculator
  1. Enter cut length per part (mm) — the total cutting path including perimeter and any holes — and material thickness.
  2. Select material type (mild steel, stainless, aluminum, or copper/brass) and enter batch quantity and setup time.
  3. Enter machine rate, material cost per kg, and finished part weight.
  4. Review cut time, machine cost, material cost, and total cost per part and per order.
  5. Nest parts efficiently to reduce cut length — overlapping common cuts saves real money since cost scales directly with total cutting path.
  6. Thicker materials cut proportionally slower — cost per part rises steadily as thickness increases for the same cut length.

How the result changes with Machine Rate

Machine RateTotal Cost per Part
$75.00$1.25
$113.00$1.50
$225.00$2.25
$375.00$3.25

What each input means

Cut Length per Part
Total cutting path length for one part (perimeter + holes).
Material Thickness
Sheet thickness to cut.
Material
Material affects cutting speed and gas consumption.
Machine Rate
Fully loaded laser machine hourly rate.
Batch Quantity
Number of parts in the batch.
Setup Time
Program load, material setup, and first-piece inspection time.
Material Cost
Raw material cost per kilogram.
Part Weight
Weight of the finished blank including material in the part.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Cut Length per Part = 600, Material Thickness = 3, Material = 1, Machine Rate = 150 = 8 input(s) provided
  2. Calculate Total Cost per Part
    Total Cost per Part
    1.76 = $1.76
  3. Calculate Machine Cost per Part
    Machine Cost per Part
    0.63 = $0.63
  4. Calculate Material Cost per Part
    Material Cost per Part
    0.75 = $0.75

Engine last updated . Checked against 1 independently-derived test — how we verify calculators. Built by Paul Gunder, a software engineer, not a licensed financial, medical, or legal professional.

Frequently Asked Questions

Why does copper or brass cost more to cut than mild steel of the same thickness?

Copper and brass conduct heat exceptionally well, which means the heat the laser generates at the cut point disperses into the surrounding material faster than it does in steel, making it harder for the laser to maintain a clean, efficient cut. This calculator reflects that with a lower baseline cutting speed for copper/brass than for mild steel, stainless, or aluminum, which directly increases machine time and therefore machine cost per part.

Why does batch quantity affect cost per part if the parts themselves don't change?

Setup time — loading the cutting program, positioning the material, and inspecting the first piece — is a fixed cost regardless of how many parts you're running, and this calculator spreads that fixed cost evenly across the whole batch. A small batch absorbs that setup overhead in just a few parts, driving up cost per part, while a large batch dilutes the same fixed setup cost down to a nearly negligible amount per unit.

Why are material cost and machine cost calculated so differently from each other?

Machine cost depends on how long the laser actually spends cutting — driven by cut path length, material thickness, and material type — while material cost depends purely on how much raw material the finished part physically consumes, priced by weight. These are genuinely independent physical quantities: a part with a long, intricate cut path but very little material (a fine lattice pattern) can have high machine cost and low material cost, while a large solid blank with a short cut perimeter inverts that relationship entirely.

How much does reducing cut length actually save on cost per part?

Cut time scales directly (linearly) with cut path length, so nesting parts to share cut lines with neighboring parts, or simplifying a design to reduce unnecessary internal cuts, translates into a proportional reduction in machine time and therefore machine cost. This is why efficient nesting layouts that let adjacent parts share a common edge cut are a standard cost-reduction technique in sheet-metal fabrication.

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