3D Print Time Estimator

Project the vertical print time for your FDM job in hours. Enter the model height, chosen layer thickness, and the average extrusion speed used in your slicer profile to see how long the machine will run before the part is complete.

Overall height of the part measured from build plate to tallest feature
Enter your slicer’s layer height—fine detail prints use 0.10–0.16 mm
Use an average extrusion speed excluding travel moves

This simplified estimator is best for quick planning. Always confirm long builds with slicer-generated timing before committing to deadlines.

Examples

  • Tall cosplay prop: 320 mm height, 0.20 mm layer height, 60 mm/s ⇒ 26.67 hours of printing—plan for an overnight run.
  • Miniature figurine: 75 mm height, 0.12 mm layer height, 40 mm/s ⇒ 15.63 hours; reducing layer height for detail dramatically lengthens the build.
  • Fast prototype: 120 mm height, 0.28 mm layer height, 70 mm/s ⇒ 6.12 hours, great for iterating enclosure designs quickly.

FAQ

Does this include infill or perimeters?

No. The estimator assumes continuous extrusion at the average speed provided. Use your slicer preview for a full breakdown that includes travel moves, infill patterns, and slow outer walls.

What value should I use for average speed?

Start with the main print speed from your slicer profile. If you have slower perimeters or top layers, average them manually or lower the speed input slightly to compensate.

How can I improve accuracy?

Measure the actual time from a similar past print and adjust the average speed input until the estimate matches. You can then reuse that calibrated speed value for future jobs with similar geometry.

Can I convert the result to days?

Yes—divide the hours result by 24. For example, 30 hours equals 1.25 days of machine time.

Additional Information

  • The calculation divides part height by the product of layer height and print speed, effectively estimating how many layers are needed and how long each takes at the specified speed.
  • Results are displayed in hours—multiply by 60 to convert to minutes or by 3,600 to convert to seconds if you need finer precision.
  • Printing at very fine layer heights greatly increases layer count and runtime, so consider variable layer profiles if only certain areas require detail.
  • Real-world jobs run longer than this baseline due to travel moves, acceleration limits, infill complexity, and pause routines such as filament changes or nozzle wipes.

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