3D Print Cost
Calculator
How much filament, how many grams, how many dollars, roughly how long. Upload an STL or OBJ, pick a material and infill, and get an estimate built from the actual mesh volume, with every assumption spelled out.
Free for files up to 25 MB, no signup. Files are deleted automatically within 24 hours.
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What You Get
A planning number before you commit a printer for six hours, or before you email a file to someone who charges by the gram.
Grams, dollars, and hours
Material volume from your mesh, converted to mass by material density, to cost by your filament price, and to time by print speed.
A model you can inspect
Shell plus infill: walls estimated from surface area, interior scaled by your infill percentage. Every assumption is printed in the report.
Your prices, not ours
Filament costs vary threefold between brands. The defaults are typical, and every one of them is overridable.
Seven material presets
PLA, PETG, ABS, ASA, TPU, Nylon, and resin, each with its real density. Pick one and adjust the price if yours differs.
Honest about being an estimate
The report says what is excluded: supports, travel moves, failed prints, electricity, labour. It is a planning number, not a quote.
STL and OBJ input
Upload either. The mesh must enclose a volume; an open surface has nothing to weigh.
How It Works
Measure
The mesh is loaded and its enclosed volume and surface area are measured. A mesh that encloses no volume is rejected rather than guessed at.
Model
Walls are estimated from surface area times wall thickness; the interior is scaled by your infill. The sum is the material volume actually deposited.
Price
Material volume becomes grams through density, dollars through your price per kg, and hours through a volumetric print rate. All shown in the report.
An estimate, never a quote
The real number comes from your slicer, because only the slicer knows your layer height, support settings, and toolpaths. This tool exists for the step before that: deciding if a print is worth doing, comparing materials, or sanity-checking a service bureau's price.
Cost here means material cost. Electricity, machine wear, failed attempts, and your time are all real and all excluded. Print farms typically charge 3 to 10 times material cost for exactly those reasons.
If the mesh is not watertight its volume is not trustworthy, and the estimate inherits that. The report warns you; the STL Checker & Repair tool fixes it.