Convert Millimetres per Second to Inches per Second
Convert Millimetres per Second (mm/s) to Inches per Second (in/s) instantly and accurately.
Conversion Formula
in/s = mm/s × 0.03937007874
About Millimetres per Second
A millimetre per second (mm/s) is 10⁻³ m/s - the speed of slow industrial mechanisms and recognisable biological motion. FDM 3D printers move at 40-120 mm/s for perimeters and 150-300 mm/s for infill. Garden snails travel 0.5-1.5 mm/s; earthworms 3-5 mm/s. CNC finishing operations run 1-several hundred mm/s. Hydraulic precision slides work at mm/s for surface preparation. Ultrasound particle velocities in soft tissue are also in this range. 1 mm/s = 10⁻³ m/s.
About Inches per Second
An inch per second (in/s) = exactly 0.0254 m/s = 25.4 mm/s. Professional reel-to-reel audio tape runs at 15 or 30 IPS; consumer tape decks at 1⅞ IPS; VHS at ~1.3 IPS. High-speed CNC axes rapid at 800-1,200 in/min ≈ 13-20 in/s. Pneumatic cylinder speeds and robotic end-effector approach speeds in US assembly plants are programmed in in/s. 1 in/s = 0.0254 m/s = 5 ft/min.
Quick Reference Table
| Millimetres per Second (mm/s) | Inches per Second (in/s) |
|---|---|
| 1 mm/s | 0.0393701 in/s |
| 2 mm/s | 0.0787402 in/s |
| 5 mm/s | 0.19685 in/s |
| 10 mm/s | 0.393701 in/s |
| 25 mm/s | 0.984252 in/s |
| 50 mm/s | 1.9685 in/s |
| 100 mm/s | 3.93701 in/s |