3D Printing Cost Calculator
Calculate the true cost of any 3D print. Enter filament weight, print time, and your rates to get a complete cost breakdown including material, electricity, machine depreciation, labor, and failure buffer. Set a markup to find your selling price.
How 3D Printing Costs Are Calculated
Most people think 3D printing cost is just the filament. In reality, filament typically accounts for only 10-20% of the true cost. A complete cost analysis includes five major components: material, electricity, machine depreciation, labor, and a failure buffer. Understanding each component helps you price prints fairly whether you are running a small business or splitting costs with a makerspace.
Material Cost
Material cost is the most straightforward component. Weigh the finished print (or check slicer estimates) and multiply by the per-gram cost of your filament. A 1 kg spool of PLA at $25 costs $0.025 per gram. A 50-gram print uses $1.25 worth of plastic. Different materials vary significantly in price, so always use the actual cost of the filament you are loading.
Cost Formulas
Material = (weight_g / 1000) × filament_cost_per_kg
Electricity = (watts / 1000) × hours × rate_per_kWh
Depreciation = (printer_cost / lifespan_hours) × print_hours
Labor = setup_hours × hourly_rate
Failure Buffer = subtotal × (failure_rate / 100)
Selling Price = total_cost × (1 + markup / 100)
Electricity Cost
A typical FDM printer draws 150-300 watts. Over a long print this adds up. A 200W printer running 10 hours at $0.12/kWh costs $0.24 in electricity. Resin printers with UV screens may draw less power but require additional energy for wash and cure stations.
Machine Depreciation
Your printer will not last forever. A $300 printer with an estimated 5,000 hours of usable life costs $0.06 per hour of operation. Higher-end machines cost more per hour but may produce fewer failures. This is a real cost that many hobbyists overlook when quoting prices for prints.
Labor and Setup Time
Slicing, bed preparation, support removal, sanding, and post-processing all take time. Even a simple print usually requires 15-30 minutes of hands-on work. If you are selling prints, your time has value. Include it in the calculation at whatever hourly rate you consider fair for your skill level.
Failure Rate Buffer
Not every print succeeds. Bed adhesion issues, filament tangles, power outages, and layer shifts happen. A 10% failure rate is conservative for well-maintained printers. For complex prints or new materials, 15-20% is more realistic. This buffer ensures you are not losing money when a print fails halfway through a 12-hour job.
Filament Cost Comparison
Typical Filament Prices (per kg)
- PLA: $20 - $25 — easiest to print, biodegradable, most popular
- ABS: $20 - $25 — stronger, heat resistant, requires ventilation
- PETG: $25 - $35 — food safe, flexible, good layer adhesion
- TPU: $30 - $45 — flexible/rubber-like, great for phone cases
- Nylon: $40 - $60 — very strong, abrasion resistant, hygroscopic
- Resin (SLA): $30 - $60/L — ultra-detailed, requires post-processing
Tips for Reducing 3D Printing Costs
Lower your infill to 10-15% for non-structural parts. Use larger layer heights (0.3mm) for prototypes. Buy filament in bulk or during sales. Optimize print orientation to minimize supports. Keep your printer well-maintained to reduce failures. Use a hardened nozzle with abrasive filaments to avoid frequent replacements. For batch production, print multiple items in one session to amortize setup time across more units.
Example: Phone Stand (35g PLA)
- Material: 35g × $0.025/g = $0.88
- Electricity: 200W × 2.5h × $0.12 = $0.06
- Depreciation: $300 / 5000h × 2.5h = $0.15
- Labor: 0.5h × $15 = $7.50
- Subtotal: $8.59 + 10% failure buffer = $9.45
- Selling price (30% markup): $12.29