Spool Remaining Calculator
Weigh a used spool to estimate its remaining grams, length and value.
Multicolor & Waste Calculator
Separate useful model material from support, purge and wipe tower consumption.
Inputs
Material Summary / Results
Enter your inputs and calculate to see the result.
Avoid overlapping slicer categories. Totals account for the values entered.
Calculation method
Separate mode: total = model + support + purge + tower. Inclusive mode: total = slicer total; model = total − support − purge − tower. Waste percentage = extras ÷ total × 100.
How to use this tool
Use mutually exclusive categories from the same slicer report. If support is included in a reported purge or total figure, separate it before entering a breakdown. In inclusive mode never add the breakdown to the total again.
Related tools
Filament Weight & Length Converter
Convert mass, length and volume using your filament diameter and density.
Enough Filament Checker
Check one spool against a slicer estimate and an explicit safety allowance.
Related guides
How to Estimate Multicolor Printing Waste
How much filament goes into the object and how much becomes extra material?