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Volumetric Flux

cm/hrtom³/m²/s

Convert centimetres per hour (volumetric flux) (cm/hr) to cubic metres per square metre per second (m³/m²/s).

Factor1 cm/hr = 2.777778e-6 m³/m²/s

Converter

cm/hr

Accepts numbers or expressions, e.g. 150 + 14.7

Result
0.277778m³/m²/s

Rendered to 6 significant figures.

Formula

Formula
m³/m²/s = cm/hr × 2.777778e-6

Multiply any value in centimetres per hour (volumetric flux) by 2.777778e-6 to obtain the value in cubic metres per square metre per second.

Worked example

Convert 100000 cm/hr to m³/m²/s.

  1. 01Start with 100000 cm/hr.
  2. 02Multiply by the conversion factor: 100000 × 2.777778e-6 = 0.277778 m³/m²/s.
Result100000 cm/hr = 0.277778 m³/m²/s

Conversion table

cm/hrm³/m²/s
12.7778e-6
25.5556e-6
51.3889e-5
102.7778e-5
205.5556e-5
500.00013889
1000.00027778
2000.00055556
5000.0013889
10000.0027778

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from cm/hr to m³/m²/s?
1 cm/hr equals 2.777778e-6 m³/m²/s. To convert, multiply the value in centimetres per hour (volumetric flux) by 2.777778e-6.
How do I convert 1 cm/hr to m³/m²/s?
1 cm/hr = 2.77778e-6 m³/m²/s. For any value, multiply by 2.777778e-6.
How do I convert m³/m²/s back to cm/hr?
Divide by the same factor — or equivalently, multiply by 360000. So 1 m³/m²/s = 360000 cm/hr.
When would I need to convert centimetre per hour (volumetric flux) to cubic metre per square metre per second?
Volumetric-flux conversions between cm/hr and m³/m²/s are routine in membrane filtration (RO, UF, MF, NF permeate flux), hydraulic loading specification, water-treatment design, hydrometallurgy and packed-bed column loading, and environmental engineering. LMH (L/m²/h) and gfd (gal/ft²/day) dominate membrane datasheets; m³/m²/h and m³/m²/day cover SI engineering ladders; m/day and cm/s appear as superficial velocity in hydromet and packed-bed work. Volumetric flux is the same physical quantity as superficial velocity (m³/m²/s ≡ m/s) but is kept distinct from the velocity and flow categories because the engineering intent is volumetric throughput per unit area, not bulk motion or total throughput.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

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