Slice a model in PrusaSlicer, Cura, Bambu Studio, or OrcaSlicer and it tells you two things about the job: roughly how long it will take, and roughly what the filament will cost. That cost is grams of filament multiplied by the price per kilogram you configured. It is accurate, it is useful, and it is the right number to check before you start a print.
It is not a selling price, and it is not trying to be. A price has to carry everything the spool doesn't — the power drawn for those hours, the share of the printer's own replacement cost those hours used up, the attempts that failed before one came out sellable, your finishing time, the packaging, and the percentage the marketplace takes out of whatever you charge. This page prices those directly and then solves for what to charge.
| Question | Where to answer it |
|---|---|
| How many grams and how many hours will this model take? | Your slicer — it has the geometry and the toolpath, and nothing else can answer this. |
| What will the filament for this print cost? | Your slicer's estimate. Type the same figure into this page's grams and $/kg fields. |
| What did the electricity and the printer's own wear cost over those hours? | This calculator — it charges power at your rate and amortizes the printer across its expected lifetime hours. |
| What do the prints that failed cost me on the one that sells? | This calculator's failure buffer — it inflates only the per-attempt costs, not the finishing you do once. |
| What is my true break-even on this part, before any margin? | This calculator's break-even figure. |
| What should I list it at so the marketplace fee and my target margin both clear? | This calculator's suggested price, solved so the fee comes out of the price rather than being stacked on after it. |
| I'm already charging a price to match a competitor's listing. Does it actually make money? | This calculator's check-a-price panel, which recomputes real profit and margin against the same break-even. |
This tool needs no account and no upload: it is a static page, the arithmetic runs in your browser, and the figures you type stay on this device. It does not read your slicer, your printer, or your shop — you bring the grams and the hours, and it prices what happens around them.
No — it is right about what it measures, which is material. A slicer knows how many grams of filament the sliced model consumes and what you told it a kilogram costs, so it multiplies the two. That is an accurate material cost and a genuinely useful number. It is simply not a price: nothing in that figure is trying to cover the power the printer drew for those hours, the share of the printer's own replacement cost that those hours used up, the attempts that failed before one came out sellable, the time you spent removing supports and sanding, the box and label it ships in, or the percentage the marketplace takes out of whatever you charge.
Because the multiplier that works for one print is wrong for the next one. A 45-gram part that prints in three hours and needs no finishing has a very different cost structure from a 45-gram part that prints in fourteen hours and takes half an hour of sanding — same filament, same 3x, wildly different real cost. Multipliers hide print time, and print time is what drives electricity and printer wear. This page charges those directly instead of hoping a constant absorbs them.
A failure still spent filament, electricity, and machine hours before it was scrapped. If a share of attempts fail, then on average 1/(1 − failure rate) attempts are needed to land one sellable part, so this page inflates the per-attempt costs — material, electricity, machine wear — by that factor. Post-processing and packaging are not inflated, because those only ever touch the part that actually sells. A slicer estimate has no way to know any of this; it prices one successful attempt.
Because the fee is a percentage of the price you charge, not a fixed cost you can stack on top. Adding it after the fact gives a price that looks right until the marketplace takes its cut, at which point the margin is short. This page solves price × (1 − fee%) − cost = price × (margin%) for price directly, so the number it suggests already clears the fee at the margin you asked for.
No. This site is not affiliated with, endorsed by, or sponsored by any slicer vendor. Those names are trademarks of their owners and appear here only to describe the kind of estimate this page is contrasted with.