Flow RateCubic Feet per Second to Gallons per Minute US

Cubic Feet per Second to Gallons per Minute (US)

Methodology·How We Verify

Snapshot

1 Cubic Foot per Second equals 448.831 Gallons per Minute (US).

Reference basis: This conversion uses a fixed factor based on time-normalized rate definitions.
Example: For 0.1 Cubic Feet per Second, the result equals 44.883 Gallons per Minute (US).

Interactive conversion

Converter Calculator

Decimals: 1.5 or 1,5. Fractions: 1/2. Scientific notation: 1e3. Write 1000 without grouping separators.

448.831 Gallons per Minute (US) (gpm)

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API and AI agent access

Cubic Feet per Second to Gallons per Minute (US).

Machine-readable identifiers

Conversion family: flow-rate
Source unit: cubic_feet_per_second
Target unit: gallons_per_minute_us

Use these identifiers in the API request. Sources and model limits also apply to software clients.

Example API request and response

POST /api/v1/convert

Request

{
  "family": "flow-rate",
  "value": 1,
  "from": "cubic_feet_per_second",
  "to": "gallons_per_minute_us"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "flow-rate",
    "value": 1,
    "from": "cubic_feet_per_second",
    "to": "gallons_per_minute_us",
    "result": {
      "raw": 448.8311688311689,
      "display": "448.831"
    },
    "canonicalPath": "/flow-rate/cubic-feet-per-second-to-gallons-per-minute-us/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Multiply by 448.8311688311689 because 1 cfs = 28.316846592 L/s and 1 gpm = 0.06309019639999999 L/s.

Method & Reference

Method basis: exact conversion formula shown in Snapshot.
Applied factor: 1 Cubic Foot per Second = 448.831 Gallons per Minute (US).
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Cubic Feet per Second (cfs)	Gallons per Minute (US) (gpm)
0.1	44.883
1/2	224.416
1	448.831
5	2,244.16
10	4,488.31
25	11,220.78
50	22,441.56
100	44,883.12
1000	448,831.17

Questions & answers

Frequently Asked Questions

What is 1 cubic foot per second in gallons per minute (us)?

1 Cubic Foot per Second equals 448.831 Gallons per Minute (US) on this page.

When would I convert cubic feet per second to gallons per minute (us)?

This route is useful when comparing imperial and HVAC-style flow units such as gallons per minute and cubic feet so specifications stay on the intended unit system.

How do I reverse Cubic Feet per Second to Gallons per Minute (US)?

Use the mirror Gallons per Minute (US) to Cubic Feet per Second route; it applies the inverse relationship with the same flow-rate assumptions.