Convert Pounds per Cubic Inch to Kilograms per Cubic Meter
No popups. No autoplay ads. Accurate answers with formulas shown.
Engineering
About Density Conversions
Density is mass per unit volume, one of the most used properties in materials science and fluid mechanics. The SI unit is kilograms per cubic metre (kg/m³), and fresh water near 4 °C lands almost exactly at 1000 kg/m³, which equals 1 g/cm³, 1 g/mL, and about 62.428 lb/ft³. That simple coincidence is deliberate: the original gram was defined as the mass of one cubic centimetre of water. Engineers pick units by context: chemistry and laboratory work use g/cm³ or g/mL; process plants and petroleum use kg/m³ or API gravity; US construction uses pounds per cubic foot; and fuel and paint spec sheets often list pounds per gallon. Lead comes in at about 11.34 g/cm³ (708 lb/ft³), aluminium at 2.70 g/cm³ (168 lb/ft³), and structural steel at roughly 7.85 g/cm³ (490 lb/ft³). Our converter uses exact definitions (1 lb = 0.45359237 kg, 1 ft = 0.3048 m), so computed values match reference tables published by NIST and ASTM.
Quick Conversions
| Unit Name | Symbol | Per 1 Pound per Cubic Inch |
|---|---|---|
| Gram per Cubic Centimeter | g/cm³ | 27.6799 |
| Gram per Milliliter | g/mL | 27.6799 |
| Kilogram per Cubic Meter | kg/m³ | 27679.9 |
| Kilogram per Liter | kg/L | 27.6799 |
| Ounce per Cubic Inch | oz/in³ | 16 |
| Pound per Cubic Foot | lb/ft³ | 1728 |
| Pound per Cubic Inch | lb/in³ | 1 |
| Pound per US Gallon | lb/gal | 231 |
Frequently Asked Questions
How do I convert Pounds per Cubic Inch to Kilograms per Cubic Meter?
To convert Pounds per Cubic Inch to Kilograms per Cubic Meter, use the conversion where 1 Pound per Cubic Inch (lb/in³) = 27679.9 Kilograms per Cubic Meter (kg/m³). For example, 1 Pound per Cubic Inch = 27679.9 Kilograms per Cubic Meter.
What are common Pound per Cubic Inch to Kilogram per Cubic Meter conversions?
Here are common conversions: 1 Pounds per Cubic Inch = 27679.9 Kilograms per Cubic Meter, 5 Pounds per Cubic Inch = 138400 Kilograms per Cubic Meter, 10 Pounds per Cubic Inch = 276799 Kilograms per Cubic Meter, 25 Pounds per Cubic Inch = 692000 Kilograms per Cubic Meter, 50 Pounds per Cubic Inch = 1384000 Kilograms per Cubic Meter, 100 Pounds per Cubic Inch = 2767990 Kilograms per Cubic Meter.
When would I need to convert Pounds per Cubic Inch to Kilograms per Cubic Meter?
Converting between these units is common in international trade, scientific research, and everyday situations where different measurement systems are used.
How precise are the conversions?
All conversions use exact factors verified against NIST and ISO standards with up to 10 significant figures of precision. Results are calculated using IEEE 754 double-precision arithmetic, which provides approximately 15-17 significant digits. For temperature and other non-linear conversions, exact formulas are used rather than approximations.