Convert Pound Mass per Square Foot Second to Kilogram per Square Meter Second
Live bidirectional calculator for Pounds Mass per Square Foot Second (lbm/(ft²·s)) and Kilograms per Square Meter Second (kg/(m²·s)) with verified formula and conversion charts.
Mass Flux Density6 units
How the Calculation Works (Linear Scaling)
Since 1 Pound Mass per Square Foot Second = 4.882428 Kilograms per Square Meter Second, multiply the value in Pounds Mass per Square Foot Second by 4.882428.
Pound Mass per Square Foot Second to Kilogram per Square Meter Second Conversion Table
Precomputed values for quick reference and printing.
| Pound Mass per Square Foot Second | Kilogram per Square Meter Second |
|---|---|
| 1 lbm/(ft²·s) | 4.8824 kg/(m²·s) |
| 2 lbm/(ft²·s) | 9.7649 kg/(m²·s) |
| 3 lbm/(ft²·s) | 14.6473 kg/(m²·s) |
| 4 lbm/(ft²·s) | 19.5297 kg/(m²·s) |
| 5 lbm/(ft²·s) | 24.4121 kg/(m²·s) |
| 6 lbm/(ft²·s) | 29.2946 kg/(m²·s) |
| 7 lbm/(ft²·s) | 34.177 kg/(m²·s) |
| 8 lbm/(ft²·s) | 39.0594 kg/(m²·s) |
| 9 lbm/(ft²·s) | 43.9418 kg/(m²·s) |
| 10 lbm/(ft²·s) | 48.8243 kg/(m²·s) |
| 15 lbm/(ft²·s) | 73.2364 kg/(m²·s) |
| 20 lbm/(ft²·s) | 97.6486 kg/(m²·s) |
| 25 lbm/(ft²·s) | 122.0607 kg/(m²·s) |
| 30 lbm/(ft²·s) | 146.4728 kg/(m²·s) |
| 40 lbm/(ft²·s) | 195.2971 kg/(m²·s) |
| 50 lbm/(ft²·s) | 244.1214 kg/(m²·s) |
| 75 lbm/(ft²·s) | 366.1821 kg/(m²·s) |
| 100 lbm/(ft²·s) | 488.2428 kg/(m²·s) |
| Kilogram per Square Meter Second | Pound Mass per Square Foot Second |
|---|---|
| 1 kg/(m²·s) | 0.2048 lbm/(ft²·s) |
| 2 kg/(m²·s) | 0.4096 lbm/(ft²·s) |
| 3 kg/(m²·s) | 0.6144 lbm/(ft²·s) |
| 4 kg/(m²·s) | 0.8193 lbm/(ft²·s) |
| 5 kg/(m²·s) | 1.0241 lbm/(ft²·s) |
| 6 kg/(m²·s) | 1.2289 lbm/(ft²·s) |
| 7 kg/(m²·s) | 1.4337 lbm/(ft²·s) |
| 8 kg/(m²·s) | 1.6385 lbm/(ft²·s) |
| 9 kg/(m²·s) | 1.8433 lbm/(ft²·s) |
| 10 kg/(m²·s) | 2.0482 lbm/(ft²·s) |
| 15 kg/(m²·s) | 3.0722 lbm/(ft²·s) |
| 20 kg/(m²·s) | 4.0963 lbm/(ft²·s) |
| 25 kg/(m²·s) | 5.1204 lbm/(ft²·s) |
| 30 kg/(m²·s) | 6.1445 lbm/(ft²·s) |
| 40 kg/(m²·s) | 8.1926 lbm/(ft²·s) |
| 50 kg/(m²·s) | 10.2408 lbm/(ft²·s) |
| 75 kg/(m²·s) | 15.3612 lbm/(ft²·s) |
| 100 kg/(m²·s) | 20.4816 lbm/(ft²·s) |
About Pound Mass per Square Foot Second (lbm/(ft²·s))
An Imperial / US customary unit of mass flux density equal to one avoirdupois pound mass per square foot per second (~4.88243 kg/(m²·s)).
History: Prominently used in American rocket propulsion nozzle analysis and boiler tube mass velocity calculations.
Common Uses: Rocket engine throat mass flux, two-phase boiling heat transfer correlations (mass velocity G in lbm/(ft²·s)).
About Kilogram per Square Meter Second (kg/(m²·s))
The SI coherent derived unit of mass flux density, defined as one kilogram of mass transported across a one-square-meter cross-section per second. It measures mass flow per unit area per unit time (G = ṁ / A).
History: Standardized in transport phenomena literature by Bird, Stewart, and Lightfoot for mass transfer, filtration, and boundary-layer dynamics.
Common Uses: Nuclear reactor thermal-hydraulic subchannel analysis, membrane reverse osmosis flux, turbulent boundary layer mass transport.
❓ Frequently Asked Questions
How many Kilograms per Square Meter Second are in 1 Pound Mass per Square Foot Second?
There are exactly 4.882428 Kilograms per Square Meter Second in 1 Pound Mass per Square Foot Second (1 lbm/(ft²·s) = 4.882428 kg/(m²·s)).
What is the formula to convert Pound Mass per Square Foot Second to Kilogram per Square Meter Second?
The formula is: Kilogram per Square Meter Second = Pound Mass per Square Foot Second × 4.882428. Since 1 Pound Mass per Square Foot Second = 4.882428 Kilograms per Square Meter Second, multiply the value in Pounds Mass per Square Foot Second by 4.882428.
How do I convert 1 lbm/(ft²·s) to kg/(m²·s) manually?
To convert 1 lbm/(ft²·s) to kg/(m²·s): apply the formula Kilogram per Square Meter Second = Pound Mass per Square Foot Second × 4.882428. Substituting gives: 1 × 4.882428 = 4.8824 kg/(m²·s).