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

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 page

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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Water News Blog and Press Releases

Water Calculators

◦ Convert Gallons to Acre-Feet or CF (Acre Foot Formula)

◦ Calculate AFA to GPM, CFS and CFM

◦ Cubic Feet Per Section (CFS) Conversions (to gps, gpm, gpd, gpa, AFA, MI, CFA)

◦ Gallons Per Minute Conversions to AFA, MI, CFS

◦ Miners Inches Conversions to GPM, CFS or AFA

◦ A Look at Miners Inches

◦ Quck Conversions - Conversion Table

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