Pounds per Second to Kilograms per Second Converter
Enter the mass flow rate in pounds per second below to convert it to kilograms per second.
Convert Pounds per Second to Kilograms per Second
Enter a value in pounds per second (lb/s) to convert to kilograms per second (kg/s).
Pound per Second to Kilogram per Second Conversion Table
Table showing various pound per second measurements converted to kilograms per second. Click any preset value or arrow to load it into the converter.
| Pounds per Second (lb/s) | Kilograms per Second (kg/s) |
|---|---|
| 1 lb/s | 0.4535924 kg/s |
| 2 lb/s | 0.9071847 kg/s |
| 2.5 lb/s | 1.1339809 kg/s |
| 5 lb/s | 2.2679619 kg/s |
| 10 lb/s | 4.5359237 kg/s |
| 15 lb/s | 6.8038856 kg/s |
| 20 lb/s | 9.0718474 kg/s |
| 25 lb/s | 11.3398093 kg/s |
| 30 lb/s | 13.6077711 kg/s |
| 50 lb/s | 22.6796185 kg/s |
How to Convert Pounds per Second to Kilograms per Second
To convert pounds per second to kilograms per second, multiply the mass flow rate by the following conversion ratio: 0.4535924 kilograms per second/pound per second.
Since one pound per second is equal to 0.4535924 kilograms per second, you can use this simple formula to convert:
The mass flow rate in kilograms per second is equal to the mass flow rate in pounds per second multiplied by 0.4535924.
For example, here's how to convert 5 pounds per second to kilograms per second using the formula above.
How Many Kilograms per Second Are in a Pound per Second?
There are 0.4535924 kilograms per second in a pound per second, which is why we use this value in the formula above.
Our pound per second to kilogram per second calculator automatically converts your mass flow rate measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Pounds per Second and kilograms per second are both units used to measure mass flow rate. Keep reading to learn more about each unit.
What Is a Pound per Second?
A pound per second is a unit of mass flow rate equal to 0.4535924 kilograms per second (kg/s), the base unit for mass flow rate. Equal to 0.453592 kg/s. [1]
The pound per second is classified as a US customary unit of mass flow rate. Pounds per Second can be abbreviated as lb/s; for example, 1 pound per second can be written as 1 lb/s.
When working with pounds per second (lb/s) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, pounds per second (lb/s) are widely used across standard mass flow rate applications within US customary workflows, engineering documentation, and technical data sheets.
What Is a Kilogram per Second?
SI unit of mass flow rate. It serves as a primary reference unit for measuring mass flow rate across scientific and practical applications. [2]
The kilogram per second is classified as an International System of Units (SI) unit of mass flow rate. Kilograms per Second can be abbreviated as kg/s; for example, 1 kilogram per second can be written as 1 kg/s.
As the primary coherent reference unit for mass flow rate in this category, all other mass flow rate units are mathematically anchored to the kilogram per second (kg/s).
In practice, kilograms per second (kg/s) are widely used across standard mass flow rate applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting mass flow rate between pounds per second (lb/s) and kilograms per second (kg/s), keep full floating-point precision (1 lb/s = 0.4535924 kg/s; 1 kg/s = 2.2046226 lb/s) during intermediate calculations and round only the final kilogram per second figure to match your instrument tolerance.
More Pound per Second & Kilogram per Second Conversions
Need to calculate in the opposite direction? Use our kilograms per second to pounds per second calculator to switch your starting unit immediately. You can also explore related tools such as converting kilograms per second to pounds per second, converting kilograms per minute to kilograms per second, or converting kilograms per hour to kilograms per second.
Convert from Pounds per Second
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Flow - Mass Metrology Standard — Pounds per Second (lb/s) to Kilograms per Second (kg/s)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Pound per Second (lb/s) & Kilogram per Second (kg/s)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (lb/s to kg/s)