The conversion from cubic meter per hour (m³/h) to gallon per hour (gal/h) is a crucial calculation in various fields, including engineering, architecture, and environmental science. Cubic meter per hour is a unit of volumetric flow rate, representing the volume of fluid that passes through a given area in one hour. On the other hand, gallon per hour is a unit of volume flow rate, commonly used in the United States to measure the flow rate of liquids. To convert cubic meters per hour to gallons per hour, we multiply the flow rate in cubic meters per hour by 264.172 gallons per cubic meter. This conversion is essential in applications such as water treatment, wastewater management, and HVAC systems, where accurate measurement of fluid flow rates is critical for efficient operation and optimal performance.