Convert Inch per Minute to Meter per Second (in/min → m/s)

Converting inches per minute to meters per second is straightforward: multiply by the conversion factor. Follow these three steps to do it by hand or in your head.

1. 1
   Take your value in inches per minute

   Start with the number of inches per minute (in/min) you want to convert.
2. 2
   Multiply by 0.000423

   The conversion factor from in/min to m/s is 0.000423. Multiply your value by this number.
3. 3
   Read the result in meters per second

   The result is your value in meters per second (m/s).

Multiply the value in inches per minute by 0.000423. For the reverse direction, multiply by 2,364.0662.

• ✓1 in/min = 0.000423 m/s = 0.0254 m/min.
• ✓CNC: lower in/min for harder materials; higher for softer.
• ✓Always match tool speed and material — too fast breaks bits.

• ✗Using mm/min and in/min interchangeably in CNC — 25.4× difference.
• ✗Treating 100 in/min as fast — only moderate in CNC.
• ✗Confusing feed rate with spindle RPM.

What is the Inch per Minute?

Inches per minute is the American standard feed-rate unit for CNC machining, 3D printing, milling machines, and precision manufacturing. Machinists program tool feed rates in IPM (inches per minute) — typical values range from 5 to 100 IPM depending on material and tool. American machine controllers (Fanuc, Haas, Mazak) default to inches per minute when set to imperial mode. 3D printer feed rates are also commonly specified in IPM in US-built machines. The unit relates to inches per second (60 ipm = 1 ips), mm per minute (1 ipm = 25.4 mm/min — the metric machinist equivalent), and feet per minute (12 ipm = 1 fpm). Manufacturing CAM (computer-aided manufacturing) software allows switching between IPM and metric mm/min depending on machine controller setup.

• CNC milling and turning feed rates
• 3D printer head movement
• Some US industrial flow specifications

What is the Meter per Second?

Meters per second is the SI unit of speed and the standard for physics, engineering, and Olympic athletics. Defined directly from the meter (length) and second (time), m/s is the natural unit for scientific work — Newton's laws of motion, kinematic equations, and fluid dynamics all use m/s. World-class athletes reach about 12 m/s in the 100-meter sprint (Usain Bolt's record averaged 10.44 m/s), commercial airliners cruise at 240–250 m/s, and a casual walk is about 1.4 m/s. The speed of sound in air at sea level is approximately 343 m/s, and the speed of light in vacuum is 299,792,458 m/s. Wind speeds in scientific contexts use m/s, though km/h dominates weather reporting. m/s relates to km/h (1 m/s = 3.6 km/h), mph (1 m/s ≈ 2.237 mph), the knot (1 m/s ≈ 1.944 kn), and ft/s (1 m/s ≈ 3.281 fps).

• Physics and engineering calculations
• Wind speed in science and aviation
• Sprint and throw analysis in sports science