Convert density units — kg/m³, g/cm³, lb/ft³, lb/in³ and more.
| Unit | Name | Value |
|---|---|---|
| kg/m³ | Kilogram/Cubic Meter | 27679.9 |
| g/cm³ | Gram/Cubic Centimeter | 27.6799 |
| kg/L | Kilogram/Liter | 27.6799 |
| lb/ft³ | Pound/Cubic Foot | 1727.9958 |
| oz/in³ | Ounce/Cubic Inch | 16.000035 |
| t/m³ | Tonne/Cubic Meter | 27.6799 |
Formula: oz/in³ = lb/in³ × 16
Multiply any lb/in³ value by 16 to get oz/in³.
Reverse: lb/in³ = oz/in³ × 0.0625
Common materials — factor: 1 lb/in³ = 16 oz/in³
| lb/in³ (lb/in³) | oz/in³ (oz/in³) | Material |
|---|---|---|
| 1.000e-05 lb/in³ | 0.00016 oz/in³ | Gas |
| 0.0001 lb/in³ | 0.0016 oz/in³ | Aerogel |
| 0.001 lb/in³ | 0.016 oz/in³ | Light foam |
| 0.01 lb/in³ | 0.16 oz/in³ | Wood |
| 0.0235 lb/in³ | 0.376 oz/in³ | Polycarbonate |
| 0.0361 lb/in³ | 0.5776 oz/in³ | Water |
| 0.0368 lb/in³ | 0.5888 oz/in³ | Seawater |
| 0.058 lb/in³ | 0.928 oz/in³ | Titanium light |
| 0.0975 lb/in³ | 1.56 oz/in³ | Aluminum |
| 0.128 lb/in³ | 2.048 oz/in³ | Titanium |
| 0.16 lb/in³ | 2.56 oz/in³ | Titanium alloy |
| 0.284 lb/in³ | 4.544 oz/in³ | Steel |
| 0.324 lb/in³ | 5.184 oz/in³ | Copper |
| 0.409 lb/in³ | 6.544 oz/in³ | Lead |
| 0.698 lb/in³ | 11.17 oz/in³ | Gold |
1 lb/in³ = 16 oz/in³.
Water = 1,000 kg/m³ = 1 g/cm³ = 1 kg/L = 62.4 lb/ft³ = 0.0361 lb/in³.
Multiply result by 0.0625 to recover the original lb/in³ value.
Compares material densities to optimize weight-to-strength ratios in product design.
Calculates dead loads from material densities for structural design in kg/m³ and lb/ft³.
Selects lightweight materials (aluminum, titanium, composites) based on density in g/cm³ or lb/in³.
Measures crude oil and drilling fluid density in kg/m³ or lb/ft³ for reservoir engineering.
Measures soil and rock bulk density in t/m³ for foundation and slope stability analysis.
Uses density in g/cm³ for solution concentration, specific gravity, and process design calculations.
Pounds per cubic inch (lb/in³) is used in aerospace, precision machining, and materials engineering where compact unit sizes are practical. One lb/in³ equals 27,679.9 kg/m³.
lb/in³ is standard in US aerospace for specifying material density in structural weight calculations: aluminum = 0.098 lb/in³, titanium = 0.160 lb/in³, steel = 0.284 lb/in³. The unit is preferred because aircraft structural calculations often work in inch-pound units.
Interesting fact: The density of uranium is 0.69 lb/in³ (19,100 kg/m³), making it about 2.4 times denser than steel. This high density — combined with its nuclear properties — makes it valuable for radiation shielding and as kinetic energy penetrators.
Ounces per cubic inch (oz/in³) is used in some US manufacturing and specialty applications. One oz/in³ = 1/16 lb/in³ = 1,729.99 kg/m³. It provides finer resolution than lb/in³ for lower-density materials.
oz/in³ appears in some US military and industrial specifications for plastics, composites, and lightweight materials. Water density = 0.578 oz/in³. Aluminum = 1.56 oz/in³. It bridges the gap between lb/in³ (too coarse) and g/cm³ (metric).
Interesting fact: The ounce as a weight unit traces back to the Roman uncia (1/12 of a pound), though the modern avoirdupois ounce (1/16 pound) became standard in medieval English trade. The oz/in³ density unit combines two historical measurement artifacts.
Converting lb/in³ to oz/in³ is common in materials science, engineering, and manufacturing. SI units (kg/m³, g/cm³) are standard in scientific and metric engineering contexts, while Imperial units (lb/ft³, lb/in³) are used in US construction and aerospace. Water at 4°C = 0.03613 lb/in³ = 0.578 oz/in³ — a universal anchor for density comparisons.
Exact factor: 1 lb/in³ = 16 oz/in³. Reverse: 1 oz/in³ = 0.0625 lb/in³.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.