3D Printing Calculator - Filament, Time, Markup

A 3D printing calculator turns a slicer's filament length and print time into a real cost number so hobbyists and small print shops can quote jobs without guesswork. It combines material density, filament diameter, spool price, print hours, and a markup into a single final price, and shows the filament weight so you can sanity-check the slicer's estimate.

• • Price a customer print job: Quote a single replacement part or a small batch in seconds, including labor and a profit margin.
• • Compare filament materials: Switch between PLA, ABS, PETG, and TPU to see how density and price shift the final quote.
• • Validate slicer weight estimates: Compare the calculator's filament weight against the slicer to catch over- or under-extrusion.
• • Budget a long overnight print: Estimate the cost of a 12-hour or 24-hour print before you press start.

The calculator works for any filament spool you can describe with a density and a price per kilogram, so it handles PLA, ABS, PETG, TPU, HIPS, ASA, nylon, and custom blends. The inputs are the physical facts of the filament and the time the job will take, so the tool works just as well for a single benchy as for a small print shop invoicing customers every week.

If you track filament and print time across many projects, Hobby Cost Calculator helps you fold those recurring expenses into a monthly hobby budget.

The calculator models the filament as a cylinder and combines that geometry with density, price, time, and markup to produce a final quoted price.

• density: Material density in grams per cubic centimeter. PLA is about 1.24, ABS about 1.04, PETG about 1.27.
• diameter: Filament strand diameter in millimeters, normally 1.75 mm; some professional machines use 2.85 mm.
• length: Total filament length the print will consume, in meters, from your slicer's filament usage report.
• pricePerKg: Price you pay for one kilogram of the filament spool.
• printTimeHours: Total time the print will take, in hours, from your slicer's time estimate.
• hourlyRate: Effective cost per hour of printer time plus operator time, in dollars.
• markupPercent: Profit margin added to the combined material and labor cost, expressed as a percentage.

The output panel surfaces the four numbers a printer cares about: the final quoted price, the filament weight in grams to compare with the slicer, and the underlying material and labor cost. If the slicer weight differs by more than a few percent, you may have entered the wrong length or density.

According to Omni Calculator 3D Printing Cost Calculator, the material cost of a 3D print equals density times pi times the squared filament radius times the filament length times the price per kilogram, while labor cost equals print time times hourly rate.

When the cost driver in your job is animation render time rather than filament, 3D Render Time Calculator estimates those hours, buffer margins, and node costs instead.

Four ideas show up every time you sit down to price a print, and understanding each one keeps the final number honest.

Treat the calculator as a transparent ledger. If a customer pushes back on price, you can show each line item rather than defending a single number.

For projects that pair a 3D printed mount with a battery-powered device, Drone Flight Time Calculator pairs well with this calculator to size runtime against mass.

Run through the inputs in order, then read the four outputs to decide what to charge or what to expect.

1. 1 Pick a filament type or enter a custom density: Choose PLA, ABS, PETG, TPU, HIPS, ASA, or Nylon to load the matching density, or pick Custom for a specialty filament.
2. 2 Confirm the filament diameter: Default 1.75 mm for most desktop printers; switch to 2.85 mm for thicker-strand machines.
3. 3 Enter the filament length from your slicer: Copy the length in meters from your slicer's filament usage panel.
4. 4 Enter the price per kilogram for the spool: Use the price you actually paid; specialty filaments cost more than commodity PLA.
5. 5 Enter print time and your hourly rate: Read print time from the slicer and set an hourly rate that covers electricity, wear, and operator time.
6. 6 Set your markup and read the final price: A 20% to 50% markup covers most small shops; the final price is the number on your invoice.

Slicing a small bracket in PrusaSlicer reports 4.8 m of PLA filament and a 3.5 hour print. Pick PLA, type 4.8 in length, set print time to 3.5, hourly rate to $2, and markup to 25%. The final quoted price of about $12 is what you should charge a customer.

If you deliver finished print files to customers, Upload Time Calculator helps you estimate how long the upload will take at their connection speed.

A 3D printing calculator replaces guesswork with a consistent formula you can defend to customers, partners, or yourself.

• • Price any print job consistently: Use the same formula every time so a small part and a 12-hour overnight print are quoted with the same logic.
• • Compare filament materials at a glance: Switch between PLA, ABS, PETG, and TPU to see how density and price shift the cost.
• • See the true cost including labor: Material cost alone hides the real expense of a long print; print time times hourly rate shows what the print actually costs.
• • Add a margin without spreadsheet math: A markup percentage scales both material and labor cost at once, so adjusting margin does not require re-typing the cost.
• • Validate slicer weight estimates: If the calculator's filament weight differs from the slicer by more than a few percent, you have entered the wrong density or the slicer is set to the wrong profile.
• • Speed up quoting for clients: Every change in length, time, or markup updates the price immediately, so a back-and-forth quote takes seconds.

The biggest benefit is repeatability. The same part quoted twice in a row produces the same number, so customers see consistent pricing and you can defend the math if anyone asks.

When you want to share a print with the world, Time Lapse Calculator plans the shooting interval and clip length for a satisfying time lapse of the job.

The formula is straightforward, but the inputs come from a real workshop where tolerances and waste add up.

• • The calculator does not model electricity, maintenance, depreciation, or post-processing time. Bundle those into the hourly rate you enter, otherwise the final quoted price will look low compared to what a small shop actually spends.
• • Filament length must include purge towers, brims, rafts, supports, and any failed-attempt waste. The calculator assumes the length you enter is the total filament that leaves the spool.

When you compare two materials, change only the density and price and leave everything else fixed. That isolates the cost difference between, say, PLA and PETG, instead of mixing it up with time and markup.

According to Simplify3D Materials Properties Table, common desktop 3D printing filaments such as PLA, ABS, PETG, and TPU have densities ranging from roughly 1.04 to 1.45 grams per cubic centimeter, which is why the same volume of different filaments leads to different weights.

According to MatterHackers Filament Comparison Guide, desktop FDM printers commonly use 1.75 mm filament with a 2.85 mm option offered by some manufacturers, and most 1 kg spools of PLA, ABS, and PETG sell in the twenty-to-fifty dollar range at retail.

Stack the hourly rate, purge waste, and slicer time, and the Is It Worth It? Calculator gives a faster go-or-no-go answer for one-off and small jobs.