Print Time Estimator

A rough print-time estimate for before you've sliced a model — once you have an actual sliced file, its estimate will always beat this one.

Filament

From your slicer's weight estimate for this model, or a rough guess if you haven't sliced it yet.
Used to convert the filament weight into an estimated volume for the time calculation.

Settings

The thickness of each printed layer, set in your slicer — smaller values print smoother but slower.
How wide each extruded line is, usually close to your nozzle diameter — check your slicer's line width setting.
Your slicer's average print speed setting — check your profile if you're not sure.
Pick High-speed CoreXY for a Bambu Lab or similar fast printer; Standard FDM covers most Bowden/Cartesian machines.

How this estimate works

This treats the filament volume as if it were extruded continuously at a fixed rate (line width × layer height × speed), then adds a flat overhead percentage for travel moves, retractions, and acceleration ramps that a raw flow-rate calculation ignores. It's a genuinely rough estimate — a model with lots of small islands, supports, or fine detail will spend far more time on travel moves than this formula accounts for, while a large simple part will come in closer to the raw number.

Why your slicer's number is always better

A slicer calculates time from your model's actual geometry, layer by layer, including every travel move and acceleration curve specific to your machine's motion settings — it isn't guessing. Use this tool before you've built or sliced a model, to get a ballpark for whether an idea is worth pursuing; once you have a sliced file, use its estimate instead.

Related Calculators

Print Cost Estimator

Layer Height Guide

Infill Percentage Guide

Filament Weight & Length Converter