What is being measured?
Mass flow is mass per time. Converting it into volumetric flow requires a density at the relevant conditions.
Mass flow cannot convert to volumetric flow without density. Pounds are avoirdupois.
Meaning of lb/s
Pounds per second uses the symbol lb/s in this library and measures mass flow rate. Under the stated reference convention, 1 lb/s = approximately 0.45359237 kg/s. This equivalence changes how a known value is written. It does not increase measurement accuracy or establish whether a measurement is appropriate to a real application.
Conversion method
Multiply the value by the source factor (0.45359237), then divide by the target factor (1). The factor ratio expresses the same mass flow rate measurement in the other unit.
Worked example
For a known value of 10 lb/s, the reference conversion gives 4.5359237 kg/s. Converting that result back gives approximately 10 lb/s. This reverse check helps catch a reversed factor, but matching round-trip arithmetic alone does not independently verify a source definition.
Common reference values
| Input (lb/s) | Reference equivalent (kg/s) |
|---|---|
| 1 | 0.45359237 |
| 5 | 2.26796185 |
| 10 | 4.5359237 |
| 25 | 11.33980925 |
| 50 | 22.6796185 |
| 100 | 45.359237 |
Compare one lb/s with other units
| Target unit | Equivalent of 1 lb/s | Definition guide |
|---|---|---|
| Kilograms per second (kg/s) | 0.45359237 | Read definition |
| Kilograms per hour (kg/h) | 1632.932532 | Read definition |
| Grams per second (g/s) | 453.59237 | Read definition |
| Grams per minute (g/min) | 27215.5422 | Read definition |
| Pounds per hour (lb/h) | 3600 | Read definition |
Precision and common mistakes
- Keep the source and target quantity consistent. A matching symbol is not enough to establish a compatible definition.
- Record the original measurement precision. Showing twelve significant digits in a table does not make a rounded input more precise.
- Check symbol capitalization, prefixes and any regional convention in the source. Use the displayed unit definition rather than a similarly named unit.
- Factors involving repeating fractions or π use finite numerical precision. Round the final answer to the precision justified by your input.
Use a working converter
- Mass flow rate converter
- Pounds per second to Kilograms per hour converter
- Pounds per second to Kilograms per second converter
- Pounds per second to Grams per second converter
- Pounds per second to Grams per minute converter
- Pounds per second to Pounds per hour converter
Source and verification scope
Examples and tables are computed from the versioned unit definitions used by the linked converters. The source access dates appear below. Computandum is independent of the cited organizations; a citation does not mean that a publisher endorses this page or an actual project.