What is the constant used to convert gallons per minute to inches per hour?

To convert gallons per minute (GPM) to inches per hour (IPH), it is important to understand the relationship between these two units of measurement. To do this, one must know the area that the water will cover and the volume of water being measured.

In California landscape architecture, managing irrigation rates and understanding how much water to apply in different scenarios is crucial for designing sustainable landscapes. When converting flow rates, the constant used reflects the typical cross-sectional area a gallon of water will cover at a particular depth.

The constant of 96.25 is derived from the fact that there are 231 cubic inches in a gallon, and one minute has 60 seconds. To find the conversion factor for inches per hour, you multiply this cubic inches per gallon by the number of gallons and then convert the time from minutes to hours. The specifics of the calculation would yield 96.25 when you consider these conversions—this indicates how many inches would cover an area per hour based on a flow rate given in gallons per minute.

Thus, a constant of 96.25 is essential in translating gallons per minute to inches per hour for proper irrigation design and water management in landscape projects, making it the correct choice for this conversion.