Rex says
Everyday utility math — the kind you'd otherwise pull up four browser tabs for. I keep it to one clean answer.
Try a scenario
Click to load — tweak from there.Inputs
Result
Estimated print time
3.52
Total layers
300
Estimated time (minutes)
211
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How to use this
- 1Enter model height (mm).
- 2Enter layer height (mm).
- 3Enter avg time per layer (print+overhead) (sec).
- 4Enter first-layer extra time (sec).
- 5Read your estimated print time on the right — it updates as you type.
- 6Hit Share to keep the scenario or send it to someone.
About this calculator
Slicer software gives the exact print time once you've generated G-code, but you often need a ballpark before modeling or quoting is finished — when scoping a job, comparing layer height tradeoffs, or deciding if a part fits in an overnight print window. This estimator uses total print height divided by layer height to get layer count, multiplies by an average time-per-layer that accounts for both the printing pass and the non-printing overhead (travel moves, retraction, Z-hop) each layer incurs. It's a simplification — actual time depends heavily on infill percentage, wall count, part geometry, and travel distance per layer — but it gets you within 15-25% for typical FDM prints, which is close enough for early planning. For fine-detail resin prints, exposure time per layer dominates instead of travel, so the same logic applies with a different time-per-layer input reflecting cure time.
Worked example
Using the values the calculator loads with:
Inputs
- Model height: 60 mm
- Layer height: 0.2 mm
- Avg time per layer (print+overhead): 42 sec
- First-layer extra time: 60 sec
Results
- Estimated print time: 3.52
- Total layers: 300
- Estimated time (minutes): 211
What each field means
Inputs
- Model height (mm)
- The model height used in the calculation, measured in mm. Starts at 60 mm so you have a working example on load.
- Layer height (mm)
- The layer height used in the calculation, measured in mm. Starts at 0.2 mm so you have a working example on load.
- Avg time per layer (print+overhead) (sec)
- The avg time per layer (print+overhead) used in the calculation, measured in sec. Starts at 42 sec so you have a working example on load.
- First-layer extra time (sec)
- The first-layer extra time used in the calculation, measured in sec. Starts at 60 sec so you have a working example on load.
Results
- Estimated print time
- Returned as a decimal number and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Total layers
- Returned as a whole number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Estimated time (minutes)
- Returned as a whole number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
Why is this estimate different from my slicer's number?
Slicers calculate exact toolpath length per layer based on actual geometry, infill pattern, and wall count, then apply your printer's acceleration/jerk profile to get real time. This tool uses an average per-layer time you set, so accuracy depends entirely on picking a realistic average from prints you've already run on similar parts.
How do I get a good average time-per-layer number?
Look at 2-3 recent completed prints in your slicer, divide total print time by total layer count, and use that as your average time-per-layer input, ideally from parts with similar footprint size and infill settings to what you're estimating now.
Does layer height change more than just layer count?
Yes — thinner layers (0.1mm) also print slower per layer at the same speed setting for good adhesion and detail, while thicker layers (0.28-0.3mm) often run faster per layer. This calculator only models the layer-count effect; adjust your avg-time-per-layer input if you change layer height significantly.
Can I use this for resin printing?
Yes — set avg-time-per-layer to your cure time plus lift/retract time per layer (commonly 5-15 seconds for fast resins on a good LCD printer), and layer heights are typically 0.025-0.05mm for resin, giving far more layers per mm than FDM.
Accuracy and limitations
- Estimates assume standard, average conditions — local rules, pricing, and materials vary.
- Results are rounded for readability; add a buffer before ordering, booking, or committing.
- Double-check anything with a real cost attached against a local quote.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). 3D Print Time Estimator. Retrieved from https://www.revenuelab.fyi/toolbox/3d-print-time-estimate
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/3d-print-time-estimate" target="_blank" rel="noopener">3D Print Time Estimator — RevenueLab</a> (2026).</p>
Source: [3D Print Time Estimator — RevenueLab](https://www.revenuelab.fyi/toolbox/3d-print-time-estimate) (2026).