Pound/Hour to Pound/Second Converter

Mass Flow Rate Converter

9 units available

Decimals:

From

To

0.000278

1 lb/h = 0.000278 lb/s

Formula:

lb/s = lb/h × 0.0002777778

With your value: 1 lb/h = 0.00027778 lb/s

Other Pound/Hour to Pound/Second conversions

2 lb/h to lb/s 3 lb/h to lb/s 4 lb/h to lb/s 5 lb/h to lb/s 6 lb/h to lb/s 7 lb/h to lb/s 8 lb/h to lb/s

Pound/Hour to Pound/Second Conversion Table

Pound/Hour (lb/h)	Pound/Second (lb/s)
0.5	0.000139
1	0.000278
2	0.000556
5	0.001389
10	0.002778
15	0.004167
20	0.005556
25	0.006944
50	0.013889
100	0.027778
250	0.069444
500	0.138889
1000	0.277778

Pound/Second to Pound/Hour Conversion Table

Pound/Second (lb/s)	Pound/Hour (lb/h)
0.5	1,799.999999
1	3,599.999999
2	7,199.999997
5	17,999.999994
10	35,999.999987
15	53,999.999981
20	71,999.999975
25	89,999.999968
50	179,999.999937
100	359,999.999873
250	899,999.999683
500	1,799,999.999365
1000	3,599,999.99873

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Pound/Hour (lb/h)

Mass Flow Rate

Exact conversion

Derived quantity: a defined mass divided by a defined time interval (kg/s), exact via the kilogram and the international pound.

Source: ISO 80000, Quantities and units (all parts)

International Organization for Standardization · Reviewed 2026-07-01

Pound/Second (lb/s)

Mass Flow Rate

Exact conversion

Derived quantity: a defined mass divided by a defined time interval (kg/s), exact via the kilogram and the international pound.

Source: ISO 80000, Quantities and units (all parts)

International Organization for Standardization · Reviewed 2026-07-01

How to Convert Pound/Hour to Pound/Second

To convert from Pound/Hour (lb/h) to Pound/Second (lb/s), multiply the value by 0.0002777778.

Formula: lb/s = lb/h × 0.0002777778

Reverse: lb/h = lb/s × 3,599.9999987301

Step-by-Step Example

Start with your value in Pound/Hour. For example: 5 lb/h
Multiply by the conversion factor: 5 x 0.0002777778
The result is: 0.001389 lb/s

About Pound/Hour

The pound/hour (lb/h) is a unit of mass flow rate. One pound/hour equals 0.0001259978806 base units. UnitConvertLab converts it against every other mass flow rate unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: mass flow rate calculations, engineering and science, education.

About Pound/Second

The pound/second (lb/s) is a unit of mass flow rate. One pound/second equals 0.45359237 base units. UnitConvertLab converts it against every other mass flow rate unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: mass flow rate calculations, engineering and science, education.

Frequently Asked Questions

How many Pound/Second are in 1 Pound/Hour?

There are exactly 0.0002777778 Pound/Second in 1 Pound/Hour. This means the conversion factor from Pound/Hour to Pound/Second is 0.0002777778.

What is the formula to convert Pound/Hour to Pound/Second?

The formula to convert Pound/Hour to Pound/Second is: lb/s = lb/h × 0.0002777778. For example, to convert 10 Pound/Hour to Pound/Second, you would multiply 10 by 0.0002777778.

What is a Pound/Hour?