Spool 3D Print Cost Calculator

The most complete 3D printing cost calculator for makers, hobbyists, and small studios. Track every expense from filament to electricity, calculate accurate pricing, and manage your spool inventory.

FULL COST BREAKDOWN
• Material costs with per-spool tracking
• Multi-zone electricity pricing (day/night/peak rates)
• Printer wear and depreciation
• Labor costs with hourly rates
• Drying costs (dryer electricity + wear)
• Packaging, shipping, design services
• Marketplace commissions (Etsy, eBay, Amazon + custom)
• Profit margin and markup calculation
• Smart price rounding

PROJECT MANAGEMENT
• Multi-plate print projects with individual timelines
• Project photos and status tracking
• Duplicate projects for repeat orders
• Cost per unit for batch production
• Personal use mode (hides sales sections)

FILAMENT INVENTORY
• Track remaining filament per spool with auto-deduction
• Batch grouping by brand, material, and color
• Empty/Low spool badges
• Archive used-up spools
• Price lock to protect cost history
• Duplicate for new batch purchases

BAMBU LAB INTEGRATION
• Cloud account login and spool sync
• Smart multi-spool matching by color and material
• Print history import with automatic project creation
• LAN/MQTT live printer status and AMS data

STATISTICS & INSIGHTS
• 13 analytics cards: revenue, costs, profit, ROI
• Monthly filament usage chart
• Cost structure breakdown
• Top materials and colors by usage
• Smart recommendations

ADDITIONAL FEATURES
• 26 languages supported
• Backup & restore (.spoolbackup)
• Daily/weekly notifications
• Dark mode
• Supports Android 16

Recent changes:
Bambu Lab print history import
• Tick the prints you want — projects build themselves: time, filaments, usage and cover photo included
• Several prints of one model can be merged into one project, each becoming its own plate
• X2D and H2S printers in the catalogue

Fixed
• Bambu Lab sign-in: the verification code is now sent and accepted
• "Add Filament" no longer does nothing when no filament is left
• Restoring an older backup no longer skips new printers