Pounds-force per cubic inch to kilonewtons per cubic meter
Type a value in lbf/in³ to get it in kN/m³ instantly.
6,514.731kN/m³
That's 59× as heavy as lead — nothing on our list beats it. Under standard gravity that is a density of 664,300 kg/m³.
What it means
How heavy is that material?
Typical values. Soil depends on moisture and compaction; concrete on its aggregate and reinforcement.
The math
How to convert lbf/in³ to kN/m³
To convert pounds-force per cubic inch to kilonewtons per cubic meter, multiply by 271.447.
Example: 24 lbf/in³ × 271.447 = 6,514.73 kN/m³.
In the other direction, 1 kN/m³ = 0.00368396 lbf/in³.
Every unit
Your specific weight in every unit
Tables
lbf/in³ to kN/m³ conversion table
| lbf/in³ | kN/m³ |
|---|---|
| 1 lbf/in³ | 271.447 kN/m³ |
| 5 lbf/in³ | 1,357.24 kN/m³ |
| 9.81 lbf/in³ | 2,662.9 kN/m³ |
| 10 lbf/in³ | 2,714.47 kN/m³ |
| 15 lbf/in³ | 4,071.71 kN/m³ |
| 18 lbf/in³ | 4,886.05 kN/m³ |
| 20 lbf/in³ | 5,428.94 kN/m³ |
| 22 lbf/in³ | 5,971.84 kN/m³ |
| 24 lbf/in³ | 6,514.73 kN/m³ |
| 25 lbf/in³ | 6,786.18 kN/m³ |
| 50 lbf/in³ | 13,572.4 kN/m³ |
| 77 lbf/in³ | 20,901.4 kN/m³ |
| 100 lbf/in³ | 27,144.7 kN/m³ |
kN/m³ to lbf/in³ conversion table
| kN/m³ | lbf/in³ |
|---|---|
| 1 kN/m³ | 0.00368396 lbf/in³ |
| 5 kN/m³ | 0.0184198 lbf/in³ |
| 9.81 kN/m³ | 0.0361396 lbf/in³ |
| 10 kN/m³ | 0.0368396 lbf/in³ |
| 15 kN/m³ | 0.0552594 lbf/in³ |
| 18 kN/m³ | 0.0663113 lbf/in³ |
| 20 kN/m³ | 0.0736792 lbf/in³ |
| 22 kN/m³ | 0.0810471 lbf/in³ |
| 24 kN/m³ | 0.088415 lbf/in³ |
| 25 kN/m³ | 0.092099 lbf/in³ |
| 50 kN/m³ | 0.184198 lbf/in³ |
| 77 kN/m³ | 0.283665 lbf/in³ |
| 100 kN/m³ | 0.368396 lbf/in³ |
Quick answers
Quick answers
- How many kN/m³ is 1 lbf/in³?
- 1 lbf/in³ is 271.447 kN/m³.
- How many kN/m³ is 10 lbf/in³?
- 10 lbf/in³ is 2,714.47 kN/m³.
- How many kN/m³ is 24 lbf/in³?
- 24 lbf/in³ is 6,514.73 kN/m³.
The units
About these units
Pounds-force per cubic inch (lbf/in³)
For metals in US tables.
Kilonewtons per cubic meter (kN/m³)
The engineering unit for soil and concrete.
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