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Volumetric Flow Rate

cfstogpm (US)

Convert cubic feet per second (cfs) to US gallons per minute (gpm (US)).

Factor1 cfs = 448.8312 gpm (US)

Converter

cfs

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

Result
448.831gpm (US)

Rendered to 6 significant figures.

Formula

Formula
gpm (US) = cfs × 448.8312

Multiply any value in cubic feet per second by 448.8312 to obtain the value in US gallons per minute.

Worked example

Convert 1 cfs to gpm (US).

  1. 01Start with 1 cfs.
  2. 02Multiply by the conversion factor: 1 × 448.8312 = 448.831 gpm (US).
Result1 cfs = 448.831 gpm (US)

Conversion table

cfsgpm (US)
1448.83
2897.66
52244.2
104488.3
208976.6
5022442
10044883
20089766
5002.2442e+5
10004.4883e+5

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from cfs to gpm (US)?
1 cfs equals 448.8312 gpm (US). To convert, multiply the value in cubic feet per second by 448.8312.
How do I convert 1 cfs to gpm (US)?
1 cfs = 448.831 gpm (US). For any value, multiply by 448.8312.
How do I convert gpm (US) back to cfs?
Divide by the same factor — or equivalently, multiply by 0.002228009. So 1 gpm (US) = 0.00222801 cfs.
When would I need to convert cubic foot per second to US gallon per minute?
Flow-rate conversions show up in pump curve interpretation, control valve sizing (Cv vs Kv), and aligning vendor specifications with process simulation outputs. cfs to gpm (US) is a frequently needed conversion for flow datasheet preparation.
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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