Online Water Calculator to
Convert CFS (Cubic Feet Per Second) into GPS, GPM, GPD, GPA,
AFA, MI or CFA
The free calculator on this page will convert cubic feet per second
(CFS) into the following volume/flow quantities:
- GPS - gallons per second
- GPM - gallons per minute
- GPD - gallons per day
- GPA - gallons per annum
- AFA - acre feet per annum
- MI - miners inches (see the discussion on different MI standards)
- CFA - cubit feet per annum
Flow rates in CFS are common in older water right claims.
The calculator is easy to use and should save you some time.
CFS Conversion
Calculator
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Formulas Used in the
Calculator
1 CFS = 7.4805 gps
1 CFS = 448.83 gpm
1 CFS = 646,316.883 gpd
1 CFS = 235,905,662
gpa 1 CFS = 50 MI
* 1
CFS = 40 MI * 1 CFS = 38.4 MI
*
1 CFS = 723.97 AFA
1 CFS = 31,536,000
CFA
* See the Miner's Inch
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DISCLAIMER: Use at your own
risk, and doublecheck the math with your own calculator. You should
also check with your hydrologist or water lawyer to make sure that
the formulas are correct for your state. The calculator will work
with Internet Explorer, Firefox and Netscape 6.0 (and
higher). Results are rounded off.
How to use the calculator.
(1) Enter the number of AFA you wish to convert in the top of the
form. DO NOT USE COMMAS. (2) Select gpm, CFS, or CFM. (3) Click
"Calculate. The converted expression will appear in the last box
(conversion). If you selected CFS, the converted figure is an
expression in CFS. To recalculate with a different expression (for
example, gpm instead of CFS), be sure to select gpm, and click the
calculate button again so that the math will reset. If you don't
understand this, experiment using 1 AFA. The results will match the
formula above.
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