Free 3D printing calculators
Four tools for the four questions that keep coming up: what does it cost me, what do I charge, what am I spending on electricity, and how many metres are left.
Filacoste has four calculators. All four are free, none asks you to sign up, and every one of them works in your own browser: what you type never leaves your computer and is not stored on any server.
They are kept apart on purpose. They could be one huge screen with thirty fields, but then you would have to fill in thirty fields just to find out how many metres are left on a spool.
The four tools
3D printing cost calculatorWork out the real cost and selling price of a 3D printed part: material, power, machine wear, failures and markup. Free, no sign-up, nothing uploaded.
How much to charge for a 3D printed partPrice your prints properly: real cost, your labour and your markup. Generates a quote you can copy and send straight to the customer.
How much electricity does a 3D printer useWork out your 3D printer's power use and what it costs per month on your own tariff. With the average wattage of the most common models.
Filament grams to metres converterConvert grams of filament to metres, or the other way round, by material and diameter (1.75 or 2.85 mm). Instant, for PLA, PETG, ABS and more.
Which one you need right now
If you want to know what a part costs you, the cost calculator. It is the main one and it keeps the full account: material, electricity, machine depreciation, failures and your time. It gives the cost back broken down line by line, so you can see where it goes.
If you already know the cost and what you want is to charge for it, the pricing one. It starts from the same calculation, adds labour and whatever margin you tell it, and leaves you the quote written out to copy and send to the customer.
If what worries you is the electricity bill, the power one. It tells you what you spend per month with your hours and your tariff, which nearly always turns out to be a good deal less than people fear.
If your slicer gives you metres and you buy kilos, the grams-to-metres converter. It is the smallest of the four and the one used most times a day.
They share the same engine
The cost one and the pricing one run the same arithmetic underneath: what changes is the fields they show you, not the formulas. That is why the numbers agree between them, and why they also agree with the figures in the guides.
The densities and material prices in the dropdowns are the same across all four as well, and they come from a single table.
What they do not do
They do not read files. There is no STL or G-code to upload anywhere: you take the grams and the hours from your own slicer and type them in. That is a deliberate decision, because the moment a file has to be uploaded you need a server to receive it, and at that point your parts stop being only yours.
They also cannot guess what a part weighs before you have sliced it. If you need a reference in the meantime, the cost guide has twenty typical parts with their grams and their hours.