Flow RateCubic Feet per Minute to Gallons per Minute US

Cubic Feet per Minute to Gallons per Minute (US)

Methodology·How We Verify

Snapshot

1 Cubic Foot per Minute equals 7.481 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 Minute, the result equals 0.748052 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.

7.481 Gallons per Minute (US) (gpm)

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API and AI agent access

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

Machine-readable identifiers

Conversion family: flow-rate
Source unit: cubic_feet_per_minute
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_minute",
  "to": "gallons_per_minute_us"
}

Essential response

{
  "ok": true,
  "conversion": {
    "family": "flow-rate",
    "value": 1,
    "from": "cubic_feet_per_minute",
    "to": "gallons_per_minute_us",
    "result": {
      "raw": 7.480519480519482,
      "display": "7.481"
    },
    "canonicalPath": "/flow-rate/cubic-feet-per-minute-to-gallons-per-minute-us/"
  }
}

API, OpenAPI and WebMCP documentation

Explanation

Multiply by 7.480519480519482 because 1 cfm = 0.47194744320000004 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 Minute = 7.481 Gallons per Minute (US).
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Cubic Feet per Minute (cfm)	Gallons per Minute (US) (gpm)
0.1	0.748052
1/2	3.74
1	7.481
5	37.403
10	74.805
25	187.013
50	374.026
100	748.052
1000	7,480.52

Questions & answers

Frequently Asked Questions

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

1 Cubic Foot per Minute equals 7.481 Gallons per Minute (US) on this page.

When would I convert cubic feet per minute 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 Minute to Gallons per Minute (US)?

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