Volumetric Flux
gpm/ft²tom³/m²/day
Convert US gallons per minute per square foot (gpm/ft²) to cubic metres per square metre per day (m³/m²/day).
Factor1 gpm/ft² = 58.67251 m³/m²/day
Converter
gpm/ft²
Accepts numbers or expressions, e.g. 150 + 14.7
Result
m³/m²/day
Rendered to 6 significant figures.
Formula
Formula
m³/m²/day = gpm/ft² × 58.67251
Multiply any value in US gallons per minute per square foot by 58.67251 to obtain the value in cubic metres per square metre per day.
Worked example
Convert 1 gpm/ft² to m³/m²/day.
- 01Start with 1 gpm/ft².
- 02Multiply by the conversion factor: 1 × 58.67251 = 58.6725 m³/m²/day.
Result1 gpm/ft² = 58.6725 m³/m²/day
Conversion table
| gpm/ft² | m³/m²/day |
|---|---|
| 1 | 58.673 |
| 2 | 117.35 |
| 5 | 293.36 |
| 10 | 586.73 |
| 20 | 1173.5 |
| 50 | 2933.6 |
| 100 | 5867.3 |
| 200 | 11735 |
| 500 | 29336 |
| 1000 | 58673 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from gpm/ft² to m³/m²/day?
1 gpm/ft² equals 58.67251 m³/m²/day. To convert, multiply the value in US gallons per minute per square foot by 58.67251.
How do I convert 1 gpm/ft² to m³/m²/day?
1 gpm/ft² = 58.6725 m³/m²/day. For any value, multiply by 58.67251.
How do I convert m³/m²/day back to gpm/ft²?
Divide by the same factor — or equivalently, multiply by 0.01704376. So 1 m³/m²/day = 0.0170438 gpm/ft².
When would I need to convert US gallon per minute per square foot to cubic metre per square metre per day?
Volumetric-flux conversions between gpm/ft² and m³/m²/day 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
- m³/m²/day → gpm/ft²cubic metre per square metre per day → US gallon per minute per square foot
- m/s → m³/m²/daymetre per second (volumetric flux) → cubic metre per square metre per day
- m³/m²/day → m/scubic metre per square metre per day → metre per second (volumetric flux)
- m/s → gpm/ft²metre per second (volumetric flux) → US gallon per minute per square foot
- gpm/ft² → m/sUS gallon per minute per square foot → metre per second (volumetric flux)
- m³/m²/s → m³/m²/daycubic metre per square metre per second → cubic metre per square metre per day