How much does it cost to 3D print something?

Far more than the filament - and that's the trap. A 120 g part from a $24 spool uses $2.88 of plastic, which is why "it's just a couple bucks of filament" feels true. But that same part occupies a printer for six hours, draws electricity, wears the nozzle and belts, takes hands-on time to slice, remove, clean, and pack, and carries a real chance of failing once before it succeeds. Quote $5 for it and you've donated an afternoon.

This calculator counts all of it. Pull the gram and hour estimates from your slicer, add your own rates, and it builds the cost the way a small print shop would:

  • Material - grams used x your actual cost per kilogram.
  • Electricity - printer wattage x hours x your kWh rate. Usually pennies, always worth counting.
  • Machine time - an hourly rate for wear, maintenance, depreciation, and the fact that a busy printer can't take other jobs. Hobbyists often use $1 - 3/hr; businesses need more.
  • Labor - the hands-on minutes: file checks, slicing, support removal, cleanup, packing, messages. Priced at what your time is worth, because it's worth something.
  • Markup - your buffer for overhead, fees, and profit, added on top.

The result is a floor, not a sticker price. Knowing the floor is what lets you choose your price - full rate for a customer, break-even for a friend, loss-leader for a sample - instead of discovering it after the fact.

Don't forget failed prints and platform fees

Two costs the calculator's core inputs don't cover, and both eat margins quietly. Failures are part of production - a tangled spool, a lifted corner, a hidden geometry problem in a customer file. Divide your base price by your expected success rate (a $20 part at 90% success is really a $22.22 part), or add a flat 5 - 25% buffer scaled to the job's risk.

And if you sell on Etsy, eBay, or Shopify, transaction fees, shipping supplies, and the occasional return all come out of the price too. Our full pricing guide - How Much to Charge for 3D Prints - walks the complete formula with a worked example, including the markup-versus-margin distinction that trips up most new sellers.

Print cost FAQ

How much does it cost to 3D print per hour?

Electricity alone is small - a 120 W printer at $0.16/kWh costs about 2 cents an hour. The honest hourly number includes machine wear and availability: most hobbyists land somewhere between $1 and $3 per print-hour for machine time before labor.

How much does 1 kg of filament actually print?

A 1 kg spool of PLA is roughly 330 m of filament - enough for dozens of small parts or a handful of large ones. At $20 - 25 per spool, material runs about $0.02 - 0.025 per gram, which is why material is rarely the biggest cost in a fairly-priced print.

What should I charge for a 3D print?

Cost floor first - material, electricity, machine time, labor - then markup, then a failure buffer scaled to the job's risk. The calculator gives you the floor; the full pricing guide covers turning it into a quote.

Is it cheaper to 3D print or buy?

For replacement parts, custom-fit anything, and discontinued pieces, printing usually wins by a mile. For mass-produced commodity items, the store version is often cheaper once your time counts. The calculator answers it per-case in about thirty seconds.