MEASUREMENT & METHODS

cubic feet per minute (ft³/min): flow rate unit guide

Understand cubic feet per minute (ft³/min) for flow rate. Check base-unit equivalents, examples, comparison tables and source conventions.

What is being measured?

Volumetric flow is volume per time. Converting it into mass flow requires a density under the applicable conditions.

US and imperial gallons differ. Barrels are US petroleum barrels of 42 US liquid gallons.

Meaning of ft³/min

cubic feet per minute uses the symbol ft³/min in this library and measures flow rate. Under the stated reference convention, 1 ft³/min = approximately 0.0004719474432 m³/s. This equivalence changes how a known value is written. It does not increase measurement accuracy or establish whether a measurement is appropriate to a real application.

Conversion method

Multiply the value by the source factor (0.0004719474432), then divide by the target factor (1). The factor ratio expresses the same flow rate measurement in the other unit.

Worked example

For a known value of 10 ft³/min, the reference conversion gives 0.004719474432 m³/s. Converting that result back gives approximately 10 ft³/min. This reverse check helps catch a reversed factor, but matching round-trip arithmetic alone does not independently verify a source definition.

Common reference values

Input (ft³/min)Reference equivalent (m³/s)
10.0004719474432
50.002359737216
100.004719474432
250.01179868608
500.02359737216
1000.04719474432

Compare one ft³/min with other units

Target unitEquivalent of 1 ft³/minDefinition guide
cubic meters per second (m³/s)0.0004719474432Read definition
cubic meters per hour (m³/h)1.69901079552Read definition
liters per second (L/s)0.4719474432Read definition
liters per minute (L/min)28.316846592Read definition
liters per hour (L/h)1699.01079552Read definition
cubic feet per second (ft³/s)0.0166666666667Read definition
us gallons per minute (US gal/min)7.48051948052Read definition
uk gallons per minute (imp gal/min)6.22883545904Read definition

Precision and common mistakes

  • Keep the source and target quantity consistent. A matching symbol is not enough to establish a compatible definition.
  • Record the original measurement precision. Showing twelve significant digits in a table does not make a rounded input more precise.
  • Check symbol capitalization, prefixes and any regional convention in the source. Use the displayed unit definition rather than a similarly named unit.
  • Factors involving repeating fractions or π use finite numerical precision. Round the final answer to the precision justified by your input.

Use a working converter

Source and verification scope

Examples and tables are computed from the versioned unit definitions used by the linked converters. The source access dates appear below. Computandum is independent of the cited organizations; a citation does not mean that a publisher endorses this page or an actual project.

Sources

Read the calculation and sourcing methodology →