Density and Mass
lb/in³tot/m³
Convert pounds per cubic inch (lb/in³) to metric tonnes per cubic metre (t/m³).
Factor1 lb/in³ = 27.6799 t/m³
Converter
lb/in³
Accepts numbers or expressions, e.g. 150 + 14.7
Result
t/m³
Rendered to 6 significant figures.
Formula
Formula
t/m³ = lb/in³ × 27.6799
Multiply any value in pounds per cubic inch by 27.6799 to obtain the value in metric tonnes per cubic metre.
Worked example
Convert 1 lb/in³ to t/m³.
- 01Start with 1 lb/in³.
- 02Multiply by the conversion factor: 1 × 27.6799 = 27.6799 t/m³.
Result1 lb/in³ = 27.6799 t/m³
Conversion table
| lb/in³ | t/m³ |
|---|---|
| 1 | 27.68 |
| 2 | 55.36 |
| 5 | 138.4 |
| 10 | 276.8 |
| 20 | 553.6 |
| 50 | 1384 |
| 100 | 2768 |
| 200 | 5536 |
| 500 | 13840 |
| 1000 | 27680 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from lb/in³ to t/m³?
1 lb/in³ equals 27.6799 t/m³. To convert, multiply the value in pounds per cubic inch by 27.6799.
How do I convert 1 lb/in³ to t/m³?
1 lb/in³ = 27.6799 t/m³. For any value, multiply by 27.6799.
How do I convert t/m³ back to lb/in³?
Divide by the same factor — or equivalently, multiply by 0.03612729. So 1 t/m³ = 0.0361273 lb/in³.
When would I need to convert pound per cubic inch to metric tonne per cubic metre?
Density conversions are critical for fluid property datasheets, hydraulic head calculations, and reconciling lab measurements (often g/cm³) with process simulator inputs (kg/m³).
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).
Related conversions
- t/m³ → lb/in³metric tonne per cubic metre → pound per cubic inch
- kg/m³ → lb/in³kilogram per cubic metre → pound per cubic inch
- lb/in³ → kg/m³pound per cubic inch → kilogram per cubic metre
- kg/m³ → t/m³kilogram per cubic metre → metric tonne per cubic metre
- t/m³ → kg/m³metric tonne per cubic metre → kilogram per cubic metre
- SG → lb/in³specific gravity (water) → pound per cubic inch