Convert Pounds per Cubic Inch to Grams per Cubic Centimeter
1 pound per cubic inch (lb/in³) equals 27.67990471 grams per cubic centimeter (g/cm³).
1 lb/in³ = 27.67990471 g/cm³
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk pound per cubic inch to gram per cubic centimeter converter to paste a column from Excel.
How to Convert Pound per Cubic Inch to Gram per Cubic Centimeter
- 1 lb/in³ = 27.67990471 g/cm³
- 1 g/cm³ = 0.036127292 lb/in³
- Example: convert 15 lb/in³ to g/cm³: 15 lb/in³ = 15 × 27.67990471 g/cm³ = 415.1985707 g/cm³
Formula
g/cm³ = lb/in³ × 27.6799047102
Derivation from SI units:
- 1 lb/in³ = 0.45359237 kg ÷ 1.6387064 × 10⁻⁵ m³ = 27 679.9047 kg/m³
- 1 g/cm³ = 10⁻³ kg ÷ 10⁻⁶ m³ = 1000 kg/m³
- 1 lb/in³ = 27679.9047102 kg/m³ ÷ 1000 kg/m³ per g/cm³ = 27.6799047102 g/cm³
Both units are defined exactly, so the factor is exact. Pound per Cubic Inch definition: pound per cubic inch; Gram per Cubic Centimeter definition: gram per cubic centimeter.
Worked examples
- Steel at 0.284 lb/in³ is 7.861092938 g/cm³.
0.284 lb/in³ × 27.67990471 = 7.861092938 g/cm³ - Aluminium at 0.098 lb/in³ is 2.712630662 g/cm³.
0.098 lb/in³ × 27.67990471 = 2.712630662 g/cm³
Pound per Cubic Inch to Gram per Cubic Centimeter conversion table
| Pounds per Cubic Inch (lb/in³) | Grams per Cubic Centimeter (g/cm³) |
|---|---|
| 0.036 lb/in³ | 0.9964765696 g/cm³ |
| 0.05 lb/in³ | 1.383995236 g/cm³ |
| 0.098 lb/in³ | 2.712630662 g/cm³ |
| 0.16 lb/in³ | 4.428784754 g/cm³ |
| 0.284 lb/in³ | 7.861092938 g/cm³ |
| 0.29 lb/in³ | 8.027172366 g/cm³ |
| 0.32 lb/in³ | 8.857569507 g/cm³ |
| 0.41 lb/in³ | 11.34876093 g/cm³ |
| 0.49 lb/in³ | 13.56315331 g/cm³ |
| 0.7 lb/in³ | 19.3759333 g/cm³ |
Where it's used
Metal densities in lb/in³ from US handbooks are converted to g/cm³. Multiply by about 27.68.
Pound per Cubic Inch to other density units
| Conversion | 1 lb/in³ equals |
|---|---|
| pound per cubic inch to kilogram per cubic meter | 27679.90471 kg/m³ |
| pound per cubic inch to gram per cubic centimeter | 27.67990471 g/cm³ |
| pound per cubic inch to kilogram per liter | 27.67990471 kg/L |
| pound per cubic inch to gram per liter | 27679.90471 g/L |
| pound per cubic inch to milligram per liter | 27679904.71 mg/L |
| pound per cubic inch to pound per cubic foot | 1728 lb/ft³ |
| pound per cubic inch to pound per gallon | 231 lb/gal |
Frequently asked questions
How many g/cm³ is 1 lb/in³?
1 lb/in³ = 27.67990471 g/cm³.
How many grams per cubic centimeter are in 1 pound per cubic inch?
1 lb/in³ = 27.67990471 g/cm³.
How do I convert pounds per cubic inch to grams per cubic centimeter?
Multiply the value in lb/in³ by 27.67990471. For example, 15 lb/in³ × 27.67990471 = 415.1985707 g/cm³.
Is the lb/in³ to g/cm³ conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "pound per cubic inch (lb/in³)".
- The International System of Units (SI), 9th edition (SI Brochure), Bureau International des Poids et Mesures , Table 2 with SI prefixes.
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Pounds per Cubic Inch to Grams per Cubic Centimeter. Retrieved October 17, 2026, from https://scientificconverters.com/density/pounds-per-cubic-inch-to-grams-per-cubic-centimeter/
IEEE
Scientific Converters, "Convert Pounds per Cubic Inch to Grams per Cubic Centimeter," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/density/pounds-per-cubic-inch-to-grams-per-cubic-centimeter/