▸ processconvert
Volumetric Flux

cm/hrtogfd

Convert centimetres per hour (volumetric flux) (cm/hr) to US gallons per square foot per day (gfd).

Factor1 cm/hr = 5.890322 gfd

Converter

cm/hr

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

Result
5.89032gfd

Rendered to 6 significant figures.

Formula

Formula
gfd = cm/hr × 5.890322

Multiply any value in centimetres per hour (volumetric flux) by 5.890322 to obtain the value in US gallons per square foot per day.

Worked example

Convert 1 cm/hr to gfd.

  1. 01Start with 1 cm/hr.
  2. 02Multiply by the conversion factor: 1 × 5.890322 = 5.89032 gfd.
Result1 cm/hr = 5.89032 gfd

Conversion table

cm/hrgfd
15.8903
211.781
529.452
1058.903
20117.81
50294.52
100589.03
2001178.1
5002945.2
10005890.3

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from cm/hr to gfd?
1 cm/hr equals 5.890322 gfd. To convert, multiply the value in centimetres per hour (volumetric flux) by 5.890322.
How do I convert 1 cm/hr to gfd?
1 cm/hr = 5.89032 gfd. For any value, multiply by 5.890322.
How do I convert gfd back to cm/hr?
Divide by the same factor — or equivalently, multiply by 0.16977. So 1 gfd = 0.16977 cm/hr.
When would I need to convert centimetre per hour (volumetric flux) to US gallon per square foot per day?
Volumetric-flux conversions between cm/hr and gfd 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).

Related conversions