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Volumetric Flux

m/daytogpm/ft²

Convert metres per day (volumetric flux) (m/day) to US gallons per minute per square foot (gpm/ft²).

Factor1 m/day = 0.01704376 gpm/ft²

Converter

m/day

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

Result
1.70438gpm/ft²

Rendered to 6 significant figures.

Formula

Formula
gpm/ft² = m/day × 0.01704376

Multiply any value in metres per day (volumetric flux) by 0.01704376 to obtain the value in US gallons per minute per square foot.

Worked example

Convert 100 m/day to gpm/ft².

  1. 01Start with 100 m/day.
  2. 02Multiply by the conversion factor: 100 × 0.01704376 = 1.70438 gpm/ft².
Result100 m/day = 1.70438 gpm/ft²

Conversion table

m/daygpm/ft²
10.017044
20.034088
50.085219
100.17044
200.34088
500.85219
1001.7044
2003.4088
5008.5219
100017.044

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from m/day to gpm/ft²?
1 m/day equals 0.01704376 gpm/ft². To convert, multiply the value in metres per day (volumetric flux) by 0.01704376.
How do I convert 1 m/day to gpm/ft²?
1 m/day = 0.0170438 gpm/ft². For any value, multiply by 0.01704376.
How do I convert gpm/ft² back to m/day?
Divide by the same factor — or equivalently, multiply by 58.67251. So 1 gpm/ft² = 58.6725 m/day.
When would I need to convert metre per day (volumetric flux) to US gallon per minute per square foot?
Volumetric-flux conversions between m/day and gpm/ft² 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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