Additive Manufacturing calculator
3D Print Time Calculator
Use this calculator before scheduling an FDM, SLA, SLS, MJF, or metal AM job when the slicer estimate needs a shop-floor allowance. It turns required parts, real print throughput, and setup or handling allowance into planned machine hours.
What this calculator does
- Estimate printer run time from part quantity, sustained print rate, and setup or handling allowance.
- a print technician or service bureau scheduler needs realistic print hours before committing a due date
- Returns planned printer hours for a build or batch of printed parts.
Formula used
- Base print time = parts required ÷ sustained print rate
- Planned print time = base print time × (1 + setup and handling allowance)
Inputs explained
- Parts required: undefined
- Sustained print rate: undefined
- Setup and handling allowance: undefined
How to use the result
- Use it for quoting, daily scheduling, due-date checks, and comparing print parameter changes.
- It is an estimate; actual time depends on slicer settings, travel moves, acceleration, recoating, heating, cooling, and failed starts.
Common questions
- Should I use slicer time or measured time? Use measured shop-floor throughput when available; slicer time often misses setup, pauses, and recovery time.
- What belongs in the allowance? Include bed prep, resin fill, powder handling, calibration, unloading, cooldown, and normal operator delays.
- Can this estimate lead time? It estimates machine hours. Add queue time, post-processing, inspection, and shipping for full lead time.
- How do I use the result? Reserve machine capacity, quote machine time, or decide whether to split the job across printers.
Last reviewed 2026-05-12.