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Volumetric Flux

in/mintoLMH

Convert inches per minute (volumetric flux) (in/min) to litres per square metre per hour (LMH).

Factor1 in/min = 1524 LMH

Converter

in/min

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

Result
1524LMH

Rendered to 6 significant figures.

Formula

Formula
LMH = in/min × 1524

Multiply any value in inches per minute (volumetric flux) by 1524 to obtain the value in litres per square metre per hour.

Worked example

Convert 1 in/min to LMH.

  1. 01Start with 1 in/min.
  2. 02Multiply by the conversion factor: 1 × 1524 = 1524 LMH.
Result1 in/min = 1524 LMH

Conversion table

in/minLMH
11524
23048
57620
1015240
2030480
5076200
1001.5240e+5
2003.0480e+5
5007.6200e+5
10001.5240e+6

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from in/min to LMH?
1 in/min equals 1524 LMH. To convert, multiply the value in inches per minute (volumetric flux) by 1524.
How do I convert 1 in/min to LMH?
1 in/min = 1524 LMH. For any value, multiply by 1524.
How do I convert LMH back to in/min?
Divide by the same factor — or equivalently, multiply by 0.000656168. So 1 LMH = 0.000656168 in/min.
When would I need to convert inch per minute (volumetric flux) to litre per square metre per hour?
Volumetric-flux conversions between in/min and LMH 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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