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Unit Conversions & Measures

US Gallons per Minute to Cubic Meters per Hour Converter

Convert US gallons per minute to cubic meters per hour with the exact factor, the working shown step by step and a plain-English explanation.

Your inputs

Change any value to update the result instantly.

Unit Conversions & Measures
gpm

Cubic Meters per Hour

22.712471 m³/h

Conversion factor

1 gpm = 0.227124707 m³/h

Value in cubic meter per second (internal base unit)

0.0063090196 m³/s

Reverse conversion check

22.712471 m³/h = 100 gpm

Rounded for everyday use

22.71 m³/h

What this calculator does

Converts a measurement given in US gallon per minutes into cubic metre per hours using the defined conversion factor.

What your result means

The same quantity expressed in m³/h instead of gpm. Nothing about the measurement itself changes.

Formula and working

m³/h = gpm × 0.227124707

  1. 1

    Start with your value

    100 gpm

  2. 2

    Convert to cubic meter per second

    100 × 0.0000630902 = 0.0063090196 m³/s

  3. 3

    Convert into cubic meters per hour

    0.0063090196 ÷ 0.0002777778 = 22.712471 m³/h

  4. 4

    Result

    100 gpm = 22.712471 m³/h

Frequently asked questions

Symbols and assumptions

gpm
Input unit — US gallon per minute
m³/h
Output unit — cubic metre per hour
m³/s
Base unit used internally for volume flow rate
  • Both units measure volume flow rate, so the physical quantity is unchanged by the conversion.
  • The relationship is exactly linear: 1 gpm = 0.227124707 m³/h.
  • Values are converted through the SI base unit for this quantity rather than pair by pair.

Sources and review

Reviewed 2026-09-22 · Next review 2027-09-22

  • A unit conversion changes how a number is expressed, not how it was measured — the answer can never be more accurate than the value entered.
  • Displayed figures are rounded for readability; the full stored precision of the m³/h value is used in every onward calculation.

Important limitation

This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.

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