Free 3D Printing Calculators

Accurate tools to calculate filament costs, price your prints, convert units, and optimize your 3D printing workflow.

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Filament Cost Calculator

Calculate the exact cost per print including material and electricity costs. Supports all filament types.
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Print Pricing Calculator

Figure out how much to charge for your prints. Includes material, time, labor, and profit margin.
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Filament Weight/Length Converter

Convert between grams and meters for any filament. Check how much filament you have left on a spool.
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Resin Volume Calculator

Calculate resin usage and cost per print. Accounts for supports and waste factor.
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Stepper Motor Current Calculator

Calculate the correct Vref and current settings for your stepper drivers. Supports TMC, A4988, DRV8825.
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Printer Settings Database

Find recommended slicer and firmware settings for your printer. Covers 30+ printers from all major brands.

Why Use These Calculators?

Whether you're a hobbyist tracking costs or a business pricing prints for customers, accurate calculations matter. Our free tools help you understand exactly what each print costs and ensure you're making a profit on every sale.

For Hobbyists

Track your printing costs over time, compare different filaments, and understand the true cost of your hobby. Knowing your costs helps you decide which prints are worth making.

For Small Businesses

Price your prints confidently with our pricing calculator that accounts for material, machine time, labor, failure rates, and profit margins. Stop undercharging and start making real money from your prints.

Frequently Asked Questions

How do I find out how much filament my print uses?
Your slicer (Cura, PrusaSlicer, etc.) will tell you the estimated filament usage in grams after you slice your model. Look for "Filament used" or similar in the print preview or statistics.
What's a good hourly rate for my 3D printer?
Most hobbyists use $1-3 per hour for machine time, while professional services charge $5-15 per hour. Consider your printer's cost, maintenance, and electricity when setting your rate.
Should I include electricity in my print cost?
For most hobbyists, electricity cost is minimal (usually under $0.10 per print). However, for long prints or if you're running a business, including electricity gives you more accurate costs. Our calculator supports both approaches.
How much markup should I add when selling prints?
Most print sellers use 50-150% markup over their costs. The right markup depends on your market, competition, and the uniqueness of your prints. Our pricing calculator helps you find the right balance.
Are these calculators accurate?
Yes! Our formulas are based on standard material densities, actual electricity calculations, and industry-standard pricing methods. Results match real-world costs when using accurate inputs.