Spool Remaining Calculator
Weigh a used spool to estimate its remaining grams, length and value.
3D Print Cost Calculator
Build a transparent batch cost with material, electricity, equipment and labor.
Inputs
Material Summary / Results
Enter your inputs and calculate to see the result.
Batch costs and selling prices use your inputs. Currencies are not converted.
Calculation method
Electricity = watts ÷ 1000 × hours × price per kWh. Markup price = cost × (1 + markup percentage ÷ 100). Target margin price = cost ÷ (1 − margin percentage ÷ 100). Unit cost = batch cost ÷ quantity.
How to use this tool
Enter totals for the complete batch. Equipment cost per hour represents your chosen depreciation and maintenance allowance. Markup and margin prices apply to the batch. Currency labels do not convert values. Taxes, shipping and failures must be included separately if relevant.
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 Calculate the True Cost of a 3D Print
What should a maker count beyond the filament price?
How to Include Electricity and Printer Wear
How should machine time affect a job budget?