3D printing calculators, done properly.
A focused set of calculators for 3D-printing hobbyists, sellers, and small print farms — work out what a print costs, what to charge for it, and how much filament you have left, with every assumption shown and editable.
More calculators
Why use this over a spreadsheet
Transparent formulas
Every calculator shows its formula and worked example — nothing is a black box.
Editable assumptions
Material density, electricity rate, depreciation — override any default with your own numbers.
Instant calculations
Results update as you type. No submit button, no page reloads.
Browse by category
Cost & Business
Work out what a print actually costs to produce, and what to charge for it if you sell your prints.
2 calculators →Filament
Convert between filament weight, length, and cost, and keep track of how much is left on a spool.
3 calculators →Calibration & Performance
Calculate extrusion, motion, flow, and print-time settings for 3D printer calibration and performance tuning.
5 calculators →Every number is explained
Material densities, machine depreciation, and other estimates are clearly labeled and adjustable — never hidden. See how each calculator works on our About & methodology page.