The “pound per hour” (lb/h) is a unit of flow rate often used in engineering and manufacturing to describe the mass of a substance, such as steam or fuel, moving through a system over time. While commonly associated with industrial processes, this unit plays a crucial role in everyday appliances, like HVAC systems, to ensure optimal performance and energy efficiency by precisely managing the flow of refrigerant or air.

Historically, the pound per hour measurement gained prominence during the Industrial Revolution when steam engines were vital for transportation and industry. By calculating steam flow in pounds per hour, engineers of the time could effectively control machinery, optimize fuel use, and enhance productivity—a legacy that continues to influence modern engineering practices.

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The kilogram per second (kg/s) is a fascinating unit of mass flow rate, representing the amount of mass passing through a reference point each second. It is especially crucial in fields like fluid dynamics and engineering, where understanding the rate at which mass moves through pipelines, engines, or reactors is vital for efficiency and safety.

In the context of a fire hose, a flow rate of around 10 kg/s is enough to fill a standard-sized bathtub in just one minute. On a larger scale, think of the vast rivers: the Amazon River, the planet’s largest, discharges water at an astounding rate of approximately 209,000 kg/s on average, offering a glimpse into the immense natural movements of mass and energy on Earth.

Pounds per hour

Kilograms per second

0 lb/h

0 kg/s

100 lb/h

0.0125998 kg/s

200 lb/h

0.0251996 kg/s

300 lb/h

0.0377993 kg/s

400 lb/h

0.0503991 kg/s

500 lb/h

0.0629989 kg/s

600 lb/h

0.0755987 kg/s

700 lb/h

0.0881984 kg/s

800 lb/h

0.100798 kg/s

900 lb/h

0.113398 kg/s

1000 lb/h

0.125998 kg/s

1100 lb/h

0.138598 kg/s

1200 lb/h

0.151197 kg/s

1300 lb/h

0.163797 kg/s

1400 lb/h

0.176397 kg/s

1500 lb/h

0.188997 kg/s

1600 lb/h

0.201596 kg/s

1700 lb/h

0.214196 kg/s

1800 lb/h

0.226796 kg/s

1900 lb/h

0.239396 kg/s

2000 lb/h

0.251996 kg/s

2100 lb/h

0.264595 kg/s

2200 lb/h

0.277195 kg/s

2300 lb/h

0.289795 kg/s

2400 lb/h

0.302395 kg/s

2500 lb/h

0.314994 kg/s

2600 lb/h

0.327594 kg/s

2700 lb/h

0.340194 kg/s

2800 lb/h

0.352794 kg/s

2900 lb/h

0.365394 kg/s

3000 lb/h

0.377993 kg/s

3100 lb/h

0.390593 kg/s

3200 lb/h

0.403193 kg/s

3300 lb/h

0.415793 kg/s

3400 lb/h

0.428392 kg/s

3500 lb/h

0.440992 kg/s

3600 lb/h

0.453592 kg/s

3700 lb/h

0.466192 kg/s

3800 lb/h

0.478792 kg/s

3900 lb/h

0.491391 kg/s

4000 lb/h

0.503991 kg/s

4100 lb/h

0.516591 kg/s

4200 lb/h

0.529191 kg/s

4300 lb/h

0.54179 kg/s

4400 lb/h

0.55439 kg/s

4500 lb/h

0.56699 kg/s

4600 lb/h

0.57959 kg/s

4700 lb/h

0.59219 kg/s

4800 lb/h

0.604789 kg/s

4900 lb/h

0.617389 kg/s

5000 lb/h

0.629989 kg/s

5100 lb/h

0.642589 kg/s

5200 lb/h

0.655188 kg/s

5300 lb/h

0.667788 kg/s

5400 lb/h

0.680388 kg/s

5500 lb/h

0.692988 kg/s

5600 lb/h

0.705588 kg/s

5700 lb/h

0.718187 kg/s

5800 lb/h

0.730787 kg/s

5900 lb/h

0.743387 kg/s

6000 lb/h

0.755987 kg/s

6100 lb/h

0.768586 kg/s

6200 lb/h

0.781186 kg/s

6300 lb/h

0.793786 kg/s

6400 lb/h

0.806386 kg/s

6500 lb/h

0.818986 kg/s

6600 lb/h

0.831585 kg/s

6700 lb/h

0.844185 kg/s

6800 lb/h

0.856785 kg/s

6900 lb/h

0.869385 kg/s

7000 lb/h

0.881984 kg/s

7100 lb/h

0.894584 kg/s

7200 lb/h

0.907184 kg/s

7300 lb/h

0.919784 kg/s

7400 lb/h

0.932384 kg/s

7500 lb/h

0.944983 kg/s

7600 lb/h

0.957583 kg/s

7700 lb/h

0.970183 kg/s

7800 lb/h

0.982783 kg/s

7900 lb/h

0.995382 kg/s

8000 lb/h

1.00798 kg/s

8100 lb/h

1.02058 kg/s

8200 lb/h

1.03318 kg/s

8300 lb/h

1.04578 kg/s

8400 lb/h

1.05838 kg/s

8500 lb/h

1.07098 kg/s

8600 lb/h

1.08358 kg/s

8700 lb/h

1.09618 kg/s

8800 lb/h

1.10878 kg/s

8900 lb/h

1.12138 kg/s

9000 lb/h

1.13398 kg/s

9100 lb/h

1.14658 kg/s

9200 lb/h

1.15918 kg/s

9300 lb/h

1.17178 kg/s

9400 lb/h

1.18438 kg/s

9500 lb/h

1.19698 kg/s

9600 lb/h

1.20958 kg/s

9700 lb/h

1.22218 kg/s

9800 lb/h

1.23478 kg/s

9900 lb/h

1.24738 kg/s

10000 lb/h

1.25998 kg/s

Conversion

Pounds per hour to Kilograms per minute

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Pounds per hour to Kilograms per hour

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Pounds per hour to Tons per hour

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Pounds per hour to Pounds per second

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Pounds per hour to Kilograms per second Conversion

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> Pounds per hour to Kilograms per second Conversion Table

> Other Conversions

:: Mass Flow Rate Units

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> Pounds per hour to Kilograms per second Conversion Table

> Other Conversions

:: Mass Flow Rate Units

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