3D Printing Calculators
3D Print Cost Calculator
Calculate total 3D print cost from filament weight, price per kg, print hours, printer power draw, electricity rate, other costs, and optional markup.
Extruder Steps Per mm Calculator
Calculate the correct E-steps/mm firmware value for your 3D printer extruder from a simple mark-and-measure calibration test.
Extrusion Multiplier Calculator
Calculate your printer's extrusion multiplier from a simple mark-and-measure test to fix under-extrusion or over-extrusion.
Filament Length Calculator
Find filament length in meters from weight, diameter, and material density, with reference lengths for common spool weights across filament materials.
Filament Spool Remaining Calculator
Calculate how much filament percentage and weight remains on a spool using a kitchen scale, without relying on slicer usage estimates.
Filament Weight Calculator
Find filament weight in grams and kilograms from length, diameter, and material density, with reference weights per meter for PLA, ABS, PETG and Nylon.
Infill Percentage Calculator
Calculate the material used and saved at a given infill percentage from total model volume and shell volume for FDM 3D printing projects, with usage guidelines.
Layer Height Calculator
Get the recommended layer height range from nozzle diameter for FDM printing, or calculate total layer count from object height and chosen layer height.
Nozzle Flow Rate Calculator
Calculate volumetric flow rate in mm3 per second and per minute from nozzle diameter, layer height, and print speed, plus optional mass flow rate in grams.
Print Layer Height Range Calculator
Calculate the recommended minimum and maximum layer height range for your nozzle diameter, based on the standard 25-75 percent rule of thumb.
Print Layer Time Calculator
Calculate how long a single print layer takes to complete based on path length and print speed, and check it against minimum layer time cooling requirements.
Print Material Density Calculator
Calculate the density of a printed sample from its mass and volume, and compare against known filament densities to verify material type.
Print Shrinkage Compensation Calculator
Calculate the model scale-up percentage needed to compensate for material shrinkage after cooling, for accurate dimensions in nylon, ABS, and other shrink-prone filaments.
Print Time Estimator
Estimate 3D print duration from model volume, layer height, nozzle diameter, print speed, and setup time using a volumetric flow rate model for FDM printers.
Print Volumetric Flow Rate Calculator
Calculate the volumetric flow rate of your print settings in mm3/s and compare against typical hot end flow limits to avoid under-extrusion at high speed.
Resin Volume Calculator
Calculate total resin volume and cost, including support structure overhead, from model volume, support percentage, and resin price per liter of resin.
Retraction Volume Calculator
Calculate the actual volume of filament pulled back during a retraction move, based on filament diameter and retraction distance.
STL Scaling Percentage Calculator
Calculate the exact scale percentage needed to resize an STL model to a specific target dimension before slicing and printing.
STL Volume Calculator
Calculate model volume in cm3 for box, cylinder, and sphere shapes, or estimate irregular geometry from bounding box dimensions and an estimated fill factor.
Support Material Calculator
Calculate FDM support material weight and cost from model volume, support percentage of that volume, material density, and price per kilogram of filament.
From STL File to Finished Print
3D printing turns a digital model into a physical object, but the model itself does not tell you how much filament it will use, how long it will take, or what it will cost — those depend on settings like infill, layer height, and nozzle flow. These ten calculators translate print settings into the practical numbers you need before you hit print.
Going from 10% to 100% infill uses more than six times the material for a part that is not six times stronger — which is why most functional prints settle in the 15–30% range instead. Past that point, strength gains flatten out while material and print time keep climbing in a straight line. Try your own model's numbers with the Infill Percentage Calculator and Filament Weight Calculator.
Popular 3D Printing Calculators
- 3D Print Cost Calculator — totals filament, electricity, and machine time into one per-print cost.
- Print Time Estimator — projects total print duration from layer height, speed, and model volume, though slicer software factors in acceleration and travel moves a simple estimator does not, so treat it as a planning baseline.
- Filament Length Calculator — converts a spool weight into the length of filament remaining.
Working with resin instead of FDM filament? See the Resin Volume Calculator, or check general fabrication math in the Manufacturing Calculators.