How to weigh it
Remove the spool from the printer, place it on a kitchen or parcel scale, and enter the combined weight. Use the tare weight for that exact spool type whenever possible.
Scale-based filament estimate
How much filament is left on the spool?
Weigh the spool with its remaining filament, subtract the empty-spool weight, and estimate whether there is enough material for the next print.
Estimated filament remaining
500 g
Original filament remaining50.0%
Complete 50 g prints10
This is a scale-based estimate. Spool tare weight varies by brand, so use the exact empty-spool weight printed by the maker or measure an identical empty spool.
Plan the next print
Enter the slicer's filament estimate as grams per print. The result counts only complete prints and deliberately ignores the unusable final turns and measurement error.