Convert Inches per Second to Millimetres per Second
Convert Inches per Second (in/s) to Millimetres per Second (mm/s) instantly and accurately.
Conversion Formula
mm/s = in/s × 25.4
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.
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.
Quick Reference Table
| Inches per Second (in/s) | Millimetres per Second (mm/s) |
|---|---|
| 1 in/s | 25.4 mm/s |
| 2 in/s | 50.8 mm/s |
| 5 in/s | 127 mm/s |
| 10 in/s | 254 mm/s |
| 25 in/s | 635 mm/s |
| 50 in/s | 1270 mm/s |
| 100 in/s | 2540 mm/s |