All 3D printing calculators

Material cost for a single print. Enter the grams from your slicer, the spool price, and a waste factor. Get the per-print number you can use for pricing on Etsy or just to know what your hobby is costing.

When to use: Use before slicing if you want a quick ballpark, or after slicing for the precise number. Most people pull this up while standing next to their printer with the spool in hand.

Open the Filament Cost calculator

Quick hours-to-print estimate from filament weight and printer class. Bambu, Prusa, Ender, Voron presets included. Rough but useful when you don't have a sliced file yet.

When to use: Use when you're browsing Printables or Thingiverse and want to know if a 250-gram model will finish before you go to bed. For exact numbers, your slicer is more accurate.

Open the Print Time calculator

Side-by-side specs for PLA, PETG, ABS, ASA, TPU, Nylon, and PC. Temperature ranges, strength, flex, outdoor performance, and price-per-kg.

When to use: Use when picking material for a new project. Especially helpful for comparison between similar options like PLA vs PLA+, ABS vs ASA, or PETG vs PETG-CF.

Open the Materials calculator

What a print actually costs in electricity. Watts × hours × your local rate. Most hobbyists overestimate this by 5x or more; the real number is usually pennies.

When to use: Use to put electricity cost in context relative to filament. Useful for print farms or anyone in a high-rate area like Hawaii or Germany. Otherwise it's almost always negligible.

Open the Electricity calculator

Track your monthly failure rate and compare to hobbyist benchmarks. Computes how much filament you're losing to failed prints and how much your effective per-print cost goes up.

When to use: Use after every month of printing to spot trends. A spike after switching filament brands or after a humid week tells you what changed.

Open the Failure Rate calculator

Multi-color print purge waste. Bambu AMS, Prusa MMU, Mosaic Palette presets. Shows how much filament gets dumped into the purge tower per print.

When to use: Use before any multi-color print to see if it's worth the material cost. For small parts with many color swaps, purge can exceed the part weight.

Open the AMS Purge Waste calculator

Filament left on a partial spool. Weigh the spool on any kitchen scale, pick your spool brand from the preset list, get the remaining grams and percent.

When to use: Use before starting a print to know if your spool will make it, or before reordering to confirm it's actually time. Empty-spool weight presets cover Bambu refillable cores, Polymaker, eSun, Prusament, and generic plastic spools.

Open the Remaining Spool calculator