Calculate pounds per hour from total weight and time, convert water or liquid flow by density, or solve chemical feed rate, flow, and ppm.

Mass-rate arithmetic only. US liquid gallons. Fluid densities are approximate examples; use measured or supplier data at operating temperature.

Pounds Per Hour Formula

The following equation is used to calculate the pounds per hour.

P / Hr = GPM × 8.33 × 60
  • Where P/Hr is the pounds per hour
  • GPM is the gallons per minute

For the water shortcut, multiply US gallons per minute by 499.8 using the approximate density 8.33 lb/US gal. For other liquids use lb/h = US gal/min × density in lb/US gal × 60. Basic mass rate is total pounds divided by elapsed hours; chemical feed is mg/L × L/h ÷ 453592.37, with ppm approximately equal to mg/L only for dilute water.

Pounds Per Hour Definition

Pounds per hour are most often used to describe the total weight in pounds per hour of water flow.

Pounds Per Hour Example

How to calculate pounds per hour?

  1. First, determine the total number of pounds produced.

    Measure the total amount of pounds produced during the time period.

  2. Next, determine the total number of hours.

    Measure the elapsed hours for the output interval. Use labor hours only when intentionally calculating productivity per labor-hour.

  3. Finally, calculate the pounds per hour.

    Divide total pounds by elapsed hours for the basic mass-rate calculation.

FAQ

What is pounds per hour?

Pounds per hour is a unit of measure of the total weight per time usually used to describe the rate of production of the weight of a product per hour of labor.