Hatchbox filament

Empty Hatchbox spools weigh about:

• 1 kg spool: about 251 g (244–282 g, depending on the spool)

Weigh your spool and take the empty weight away to see how much filament is left, or use the spool weight calculator. These are typical figures for the brand from SpoolmanDB, so an empty spool of your own may differ by a few grams.