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    Cubic Foot/Minute to Gallon (US)/Hour Converter

    Convert Cubic Foot/Minute (cfm) to Gallon (US)/Hour (gph) instantly. 1 cfm = 448.831169 gph.

    Flow Rate Converter

    14 units available

    Decimals:
    448.831169

    1 cfm = 448.831169 gph

    Formula:

    gph = cfm × 448.8311689735

    With your value: 1 cfm = 448.83116897 gph

    Other Cubic Foot/Minute to Gallon (US)/Hour conversions

    2 cfm to gph3 cfm to gph4 cfm to gph5 cfm to gph6 cfm to gph7 cfm to gph8 cfm to gph

    Cubic Foot/Minute to Gallon (US)/Hour Conversion Table

    Cubic Foot/Minute (cfm)Gallon (US)/Hour (gph)
    0.5224.415584
    1448.831169
    2897.662338
    52,244.155845
    104,488.31169
    156,732.467535
    208,976.623379
    2511,220.779224
    5022,441.558449
    10044,883.116897
    250112,207.792243
    500224,415.584487
    1000448,831.168973

    Gallon (US)/Hour to Cubic Foot/Minute Conversion Table

    Gallon (US)/Hour (gph)Cubic Foot/Minute (cfm)
    0.50.001114
    10.002228
    20.004456
    50.01114
    100.02228
    150.03342
    200.04456
    250.0557
    500.1114
    1000.222801
    2500.557002
    5001.114005
    10002.228009

    Where these values come from

    Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

    Cubic Foot/Minute (cfm)

    Flow Rate

    Exact conversion

    Derived quantity: a defined volume divided by a defined time interval (m³/s). All listed units are exact multiples of the cubic metre per second.

    Source: ISO 80000, Quantities and units (all parts)

    International Organization for Standardization · Reviewed 2026-07-01

    Gallon (US)/Hour (gph)

    Flow Rate

    Exact conversion

    Derived quantity: a defined volume divided by a defined time interval (m³/s). All listed units are exact multiples of the cubic metre per second.

    Source: ISO 80000, Quantities and units (all parts)

    International Organization for Standardization · Reviewed 2026-07-01

    How to Convert Cubic Foot/Minute to Gallon (US)/Hour

    To convert from Cubic Foot/Minute (cfm) to Gallon (US)/Hour (gph), multiply the value by 448.8311689735.

    Formula: gph = cfm × 448.8311689735

    Reverse: cfm = gph × 0.0022280093

    Step-by-Step Example

    1. Start with your value in Cubic Foot/Minute. For example: 5 cfm
    2. Multiply by the conversion factor: 5 x 448.8311689735
    3. The result is: 2,244.155845 gph

    About Cubic Foot/Minute

    The cubic foot/minute (cfm) is a unit of flow rate. One cubic foot/minute equals 0.0004719474432 base units. UnitConvertLab converts it against every other flow rate unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

    Common uses: flow rate calculations, engineering and science, education.

    About Gallon (US)/Hour

    The gallon (us)/hour (gph) is a unit of flow rate. One gallon (us)/hour equals 1.051503 × 10^-6 base units. UnitConvertLab converts it against every other flow rate unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

    Common uses: flow rate calculations, engineering and science, education.

    Frequently Asked Questions

    How many Gallon (US)/Hour are in 1 Cubic Foot/Minute?

    There are exactly 448.8311689735 Gallon (US)/Hour in 1 Cubic Foot/Minute. This means the conversion factor from Cubic Foot/Minute to Gallon (US)/Hour is 448.8311689735.

    What is the formula to convert Cubic Foot/Minute to Gallon (US)/Hour?

    The formula to convert Cubic Foot/Minute to Gallon (US)/Hour is: gph = cfm × 448.8311689735. For example, to convert 10 Cubic Foot/Minute to Gallon (US)/Hour, you would multiply 10 by 448.8311689735.

    What is a Cubic Foot/Minute?

    The cubic foot/minute (cfm) is a unit of flow rate. One cubic foot/minute equals 0.0004719474432 base units. UnitConvertLab converts it against every other flow rate unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

    What is a Gallon (US)/Hour?

    The gallon (us)/hour (gph) is a unit of flow rate. One gallon (us)/hour equals 1.051503 × 10^-6 base units. UnitConvertLab converts it against every other flow rate unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

    What are the common uses of Cubic Foot/Minute?

    The Cubic Foot/Minute is commonly used in flow rate calculations, engineering and science, education.

    Related Flow Rate Conversions

    Cubic Meter/Second → Gallon (US)/HourCubic Meter/Hour → Gallon (US)/HourLiter/Second → Gallon (US)/HourLiter/Minute → Gallon (US)/HourLiter/Hour → Gallon (US)/HourMilliliter/Minute → Gallon (US)/HourGallon (US)/Minute → Gallon (US)/HourGallon (UK)/Minute → Gallon (US)/HourCubic Foot/Minute → Cubic Meter/Second

    Cite this page

    UnitConvertLab. (2026). Cubic Foot/Minute to Gallon (US)/Hour converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/cfm-to-gph_us