How is this different from a simple volume-and-speed print time formula?

This estimator adds a per-layer overhead term driven by model height and layer height. Every layer change involves travel moves, retractions, and sometimes z-hop, and taller, thinner-layer prints accumulate more of this overhead than a simple toolpath-time formula accounts for.

Where do I find model volume and height?

CAD tools (Fusion 360, FreeCAD, Tinkercad) show volume and bounding-box height in object properties. Slicers like Cura or PrusaSlicer also display volume in their print statistics panel and height in the model dimensions.

What do the speed presets mean?

Draft (150 mm/s) targets fast, lower-detail prints. Standard (60 mm/s) is a typical everyday FDM speed. Fine (35 mm/s) trades speed for surface quality. Pick Custom to enter your own printer speed.

What is the per-layer overhead seconds field?

It is a flat time allowance per layer for travel moves, retractions, and z-hop, not modeled by pure extrusion time. The default of 3 seconds is a reasonable middle ground for a well-tuned FDM printer; slower or more retraction-heavy setups can run higher.

Does this include filament cost?

No, this tool is time-only. For filament weight and cost, use the Filament Cost Calculator or 3D Print Time Estimator, which also compute filament usage and price.

Why might the actual print take longer than the estimate?

Slicers also account for acceleration and jerk limits, variable speeds per feature (perimeters vs. infill vs. top layers), and cooling pauses. Treat this as a ballpark, typically within 20 to 30 percent of real slicer output.

Print Time Estimator

Enter model volume, height, layer height, and infill, or pick a speed preset, to get a layer-aware print time estimate.

Print Settings

Model Volume (cm³) *

Model Height (mm) *

Used to compute layer count and per-layer overhead.

Layer Height (mm)

Infill Percentage (%)

Nozzle Diameter (mm)

Print Speed Preset

Print Speed (mm/s)

Per-Layer Overhead (seconds)

Travel, retraction, and z-hop time added per layer.

Enter model volume and height, then click Calculate.

Summary

This estimator calculates FDM print time from the extrusion toolpath (model volume, infill, layer height, and print speed) and adds a per-layer overhead allowance driven by model height, since taller models with more layers spend more time on travel moves and retractions between layers. Pick a Draft, Standard, or Fine speed preset to auto-fill a typical print speed, or enter a custom value.

How it works

Enter your model volume in cubic centimeters (cm³), from your slicer or CAD software.
Enter the model height in millimeters — this drives the layer count and overhead time.
Set layer height, infill percentage, and nozzle diameter to match your printer profile.
Pick a Draft, Standard, or Fine speed preset, or choose Custom and enter your own print speed.
Optionally adjust the per-layer overhead seconds (travel, retraction, z-hop between layers).
Click Calculate to see estimated print time, layer count, and a toolpath vs. overhead breakdown.

Use cases

Estimate print duration for taller models where layer-change overhead adds up.
Compare print time across Draft, Standard, and Fine speed profiles before slicing.
Sanity-check a slicer time estimate against a layer-aware formula.
Plan overnight print queues when scheduling multiple jobs.
See how layer height changes both layer count and total print time.
Estimate time for a redesign before committing to a full slice.

Frequently Asked Questions

Last updated: 2026-09-09 · Reviewed by Nham Vu