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Convert Millimeter/Hour (mm/h) to Mach (SI Standard) (Ma) instantly.

About these units

Millimeter/Hour (mm/h)

A millimeter per hour is extraordinarily slow, used in geology, meteorology, and materials science to measure phenomena like soil creep, tectonic plate micro-motion, or extremely light precipitation (drizzle). In manufacturing, mm/h may describe slow deposition rates in thin-film fabrication or high-precision milling processes. Despite seeming negligible, speeds measured in mm/h can accumulate into significant changes over weeks, months, or years—making them essential for long-term studies.

Mach (SI Standard) (Ma)

Mach is a dimensionless measure of speed relative to the speed of sound in a given medium. Mach 1 corresponds to the speed of sound, Mach 2 is twice that speed, and so on. Mach values change with temperature, atmospheric pressure, and altitude because the speed of sound changes with these conditions. Aircraft performance, supersonic flight, rocket design, and shockwave analysis all depend heavily on Mach numbers. Mach is more than just a speed measure—it categorizes aerodynamic regimes: Subsonic (Mach < 1), Transonic (Mach 0.8–1.2), Supersonic (Mach 1–5), Hypersonic (Mach > 5). Mach numbers therefore provide insight into aerodynamic behavior, not just velocity.

More Millimeter/Hour converters

Millimeter/Hour [mm/h] ↔ Meter/Second [m/s]
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Millimeter/Hour [mm/h] ↔ Kilometer/Hour [km/h]
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Millimeter/Hour [mm/h] ↔ Mile/Hour [mi/h]
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Millimeter/Hour [mm/h] ↔ Foot/Second [ft/s]
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Millimeter/Hour [mm/h] ↔ Kilometer/Second [km/s]
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Millimeter/Hour [mm/h] ↔ Knot [kt]
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Millimeter/Hour [mm/h] ↔ Mach (SI Standard) [Ma]
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Millimeter/Hour [mm/h] ↔ Speed of Light [c]
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Millimeter/Hour [mm/h] ↔ Kilometer/Minute [km/min]
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Millimeter/Hour [mm/h] ↔ Mile/Second [mi/s]
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Millimeter/Hour [mm/h] ↔ Meter/Hour [m/h]
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Millimeter/Hour [mm/h] ↔ Meter/Minute [m/min]
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Millimeter/Hour [mm/h] ↔ Centimeter/Hour [cm/h]
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Millimeter/Hour [mm/h] ↔ Centimeter/Minute [cm/min]
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Millimeter/Hour [mm/h] ↔ Centimeter/Second [cm/s]
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Millimeter/Hour [mm/h] ↔ Millimeter/Minute [mm/min]
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Millimeter/Hour [mm/h] ↔ Millimeter/Second [mm/s]
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Millimeter/Hour [mm/h] ↔ Foot/Hour [ft/h]
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Millimeter/Hour [mm/h] ↔ Foot/Minute [ft/min]
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Millimeter/Hour [mm/h] ↔ Yard/Hour [yd/h]
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Millimeter/Hour [mm/h] ↔ Yard/Minute [yd/min]
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Millimeter/Hour [mm/h] ↔ Yard/Second [yd/s]
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Millimeter/Hour [mm/h] ↔ Mile/Minute [mi/min]
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Millimeter/Hour [mm/h] ↔ Knot (UK) [kt (UK)]
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Millimeter/Hour [mm/h] ↔ Cosmic Velocity - First [v₁]
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Millimeter/Hour [mm/h] ↔ Cosmic Velocity - Second [v₂]
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Millimeter/Hour [mm/h] ↔ Cosmic Velocity - Third [v₃]
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Millimeter/Hour [mm/h] ↔ Earth's Velocity [v⊕]
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Millimeter/Hour [mm/h] ↔ Speed of Sound in Pure Water [vₕ₂ₒ]
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Millimeter/Hour [mm/h] ↔ Speed of Sound in Sea Water [vₛₑₐ]
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Millimeter/Hour [mm/h] ↔ Mach (20°C, 1 atm) [Ma (20°C)]
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Millimeter/Hour [mm/h] ↔ Walking Speed [walk]
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Millimeter/Hour [mm/h] ↔ Running Speed [run]
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Millimeter/Hour [mm/h] ↔ Cycling Speed [cycle]
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Convert Millimeter/Hour to Mach (SI Standard)