Mass Flux Density / lb/(ft²·s) → kg/(m²·s)
Convert Pounds per square foot second to Kilograms per square meter second
Convert mass flow per unit cross-sectional area. Convert Pounds per square foot second (lb/(ft²·s)) to Kilograms per square meter second (kg/(m²·s)). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: Kilograms per square meter second to Pounds per square foot second →
How to convert pounds per square foot second to kilograms per square meter second
Mass flux combines mass flow and area. Keep the area normal to the flow and use the same signed-direction convention when comparing data.
Use x for the value in lb/(ft²·s), b for the intermediate value in kg/(m²·s), and y for the result in kg/(m²·s).
kg/(m²·s) = lb/(ft²·s) × 4.88242763638305
Worked examples
10 lb/(ft²·s) ≈ 48.8242763638 kg/(m²·s)
Step 1: (10 × 4.88242763638) ≈ 48.8242763638 kg/(m²·s).
Step 2: 48.8242763638 ÷ 1 ≈ 48.8242763638 kg/(m²·s).20 lb/(ft²·s) ≈ 97.6485527277 kg/(m²·s)
Step 1: (20 × 4.88242763638) ≈ 97.6485527277 kg/(m²·s).
Step 2: 97.6485527277 ÷ 1 ≈ 97.6485527277 kg/(m²·s).
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Pounds per square foot second
Pounds per square foot second (lb/(ft²·s)) measures mass flux density under the conventions above. The base value in kg/(m²·s) is (x × 4.88242763638), where x is the numerical value in lb/(ft²·s). Factors shown here are rounded for display; calculations use the stored factor.
About Kilograms per square meter second
Kilograms per square meter second (kg/(m²·s)) measures mass flux density under the conventions above. The base value in kg/(m²·s) is (x × 1), where x is the numerical value in kg/(m²·s). Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Carry the same physical assumptions into subsequent physics calculations.
Pounds per square foot second to kilograms per square meter second reference table
| Pounds per square foot second (lb/(ft²·s)) | Kilograms per square meter second (kg/(m²·s)) |
|---|---|
| 1 | 4.88242763638 |
| 5 | 24.4121381819 |
| 10 | 48.8242763638 |
| 25 | 122.06069091 |
| 50 | 244.121381819 |
| 100 | 488.242763638 |
| 1000 | 4882.42763638 |
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