Use the actual net weight and price of your spool, then add an optional allowance for material not already counted by the slicer.
Optional, unencrypted storage in this browser only. Do not save secrets on a shared device. Nothing is saved automatically.
My workspace →A $20, 1,000 g spool costs $0.02 per gram. A 100 g job with 10% additional waste uses a modeled 110 g and costs $2.20 in material.
Cost per gram = spool price ÷ net spool grams Used grams = slicer grams × (1 + waste allowance) Material cost = used grams × cost per gram
The starter inputs above produce:
Filament cost: $2.20
Change the inputs to match your own situation. The result is an estimate or text transformation, not a substitute for reviewing your source data.
No. Use the 3D Print Cost Calculator for a broader quote.
Yes. Replace the default 1,000 g net spool weight with the actual amount.
No. This release runs without an account, API key or payment. Saving a favorite stores only the tool’s identifier in this browser, not your inputs.
A 100 g job using a $20, 1,000 g spool plus 10% additional material costs $2.20. Include supports and purge once. For a $15, 750 g spool, the equivalent price per kilogram is $15 ÷ 750 × 1,000 = $20.
Next, enter slicer weight and the equivalent price per kilogram in the print-cost calculator. Do not add the $2.20 again as Other project costs: that tool already calculates material.
Values are not transferred automatically. Copy the relevant cost into the next worksheet, keep units consistent, and avoid counting the same cost twice. Estimates are planning aids, not guaranteed prices or earnings.