3D Printing Cost Calculator

Calculate cost of 3D printed parts.

Result:

The True Cost of 3D Printing: A Guide for Makers and Businesses

3D printing (additive manufacturing) has revolutionized rapid prototyping and hobbyist crafting. However, a common misconception is that printed parts are incredibly cheapâ€”only costing "pennies." While the raw plastic is affordable, accurately calculating the true cost of a 3D printed object is essential, especially if you plan to sell your prints or run a print farm. Our 3D Print Cost Calculator focuses on the primary expenseâ€”material costâ€”providing a baseline for pricing your work.

Understanding Filament Costs

The biggest direct cost in FDM (Fused Deposition Modeling) printing is the filament. Filament is typically sold by weight (e.g., 1kg spools) but consumed by volume and density.

For example, a standard 1kg spool of PLA might cost $20. If you print a model that weighs 100g (including supports and rafts), you have used exactly 10% of that spool, costing you $2.00. However, premium engineering materials like Carbon Fiber Nylon or TPU can cost $50-$100 per kg, significantly increasing the part cost. Calculating this manually for every print is tedious, which is where our tool helps.

The Hidden Costs of Printing

While our calculator gives you the material cost, a comprehensive pricing model must account for "hidden" variables if you are running a business:

Electricity: 3D printers use heaters for the nozzle and the bed. A printer with a heated bed running for 20 hours can consume a measurable amount of electricity (kilowatt-hours). In high-cost energy areas, this adds up.
Machine Depreciation & Maintenance: Nozzles wear out (especially with abrasive filaments), belts stretch, and fans die. You should factor in a small hourly rate (e.g., $0.50/hr) to cover machine repairs and eventual replacement.
Labor: Your time is money. Slicing the model, changing filament, removing supports, and post-processing (sanding/painting) takes time. Don't work for free!
Failure Rate: Not every print succeeds. If you have a 10% failure rate, you need to mark up your successful prints to cover the wasted plastic and time of the failed ones.

Material Types and Density

Different materials have different densities, which affects how much "volume" you get per kilogram.
PLA (Polylactic Acid): Density ~1.24 g/cmÂ³. The standard hobbyist material. Cheap and easy to print.
PETG (Polyethylene Terephthalate Glycol): Density ~1.27 g/cmÂ³. Stronger and more heat resistant than PLA.
ABS (Acrylonitrile Butadiene Styrene): Density ~1.04 g/cmÂ³. Lighter than PLA but prone to warping.
Because specific gravity varies, a 1kg spool of ABS actually contains more length of filament than a 1kg spool of PLA. Our calculator works purely on weight, which bypasses the density mathâ€”if your slicer says the part weighs 50g, it weighs 50g regardless of the plastic volume.

Pricing Your Prints for Profit

If you are selling 3D printed items on Etsy or locally, a common pricing formula is:
Price = (Material Cost x 3) + Labor
Markup the material cost by 300% to cover electricity, machine wear, and failures. Then add a flat fee for your time. For unqiue, custom-designed parts, the value is in the design, not the plastic, so price accordingly (often 10x-20x material cost).

Reducing Print Costs

To save money on prints:

Optimize Infill: Most strength comes from perimeters (walls), not infill. Lowering infill from 20% to 10% saves significant material without sacrificing much strength.
Use Lightning Infill: For visual models, "lightning" or "support cubic" infill saves massive amounts of material.
Reduce Supports: Orient the model to minimize overhangs. Supports are pure waste.

How to Use

1. Slice your model in your preferred software (Cura, PrusaSlicer, Bambu Studio).
2. Note the estimated weight (in grams) provided by the slicer.
3. Enter the Spool Cost (how much you paid for the roll).
4. Enter the Spool Weight (usually 1000g for 1kg, or 750g for some specialty rolls).
5. Click Calculate to see the exact material cost for that part.