Convert density units — kg/m³, g/cm³, lb/ft³, lb/in³ and more.
| Unit | Name | Value |
|---|---|---|
| kg/m³ | Kilogram/Cubic Meter | 1000 |
| kg/L | Kilogram/Liter | 1 |
| lb/ft³ | Pound/Cubic Foot | 62.427818 |
| lb/in³ | Pound/Cubic Inch | 0.036127298 |
| oz/in³ | Ounce/Cubic Inch | 0.57803802 |
| t/m³ | Tonne/Cubic Meter | 1 |
Formula: oz/in³ = g/cm³ × 0.578
Multiply any g/cm³ value by 0.578 to get oz/in³.
Reverse: g/cm³ = oz/in³ × 1.73
Common materials — factor: 1 g/cm³ = 0.578 oz/in³
| g/cm³ (g/cm³) | oz/in³ (oz/in³) | Material |
|---|---|---|
| 0.0001 g/cm³ | 5.780e-05 oz/in³ | Gas trace |
| 0.001 g/cm³ | 0.000578 oz/in³ | Low pressure gas |
| 0.01 g/cm³ | 0.00578 oz/in³ | Light foam |
| 0.1 g/cm³ | 0.0578 oz/in³ | Aerogel |
| 0.917 g/cm³ | 0.5301 oz/in³ | Ice |
| 1 g/cm³ | 0.578 oz/in³ | Water |
| 1.025 g/cm³ | 0.5925 oz/in³ | Seawater |
| 1.6 g/cm³ | 0.9249 oz/in³ | Sand bulk |
| 2.7 g/cm³ | 1.561 oz/in³ | Aluminum |
| 3.52 g/cm³ | 2.035 oz/in³ | Diamond |
| 7.85 g/cm³ | 4.538 oz/in³ | Steel |
| 8.96 g/cm³ | 5.179 oz/in³ | Copper |
| 11.34 g/cm³ | 6.555 oz/in³ | Lead |
| 19.3 g/cm³ | 11.16 oz/in³ | Gold |
| 22.59 g/cm³ | 13.06 oz/in³ | Osmium |
1 g/cm³ = 0.578 oz/in³.
Water = 1,000 kg/m³ = 1 g/cm³ = 1 kg/L = 62.4 lb/ft³ = 0.0361 lb/in³.
Multiply result by 1.73 to recover the original g/cm³ 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.
Grams per cubic centimeter (g/cm³) equals exactly 1,000 kg/m³ and is numerically identical to g/mL and kg/L. It became popular in chemistry and materials science because water has a convenient density of exactly 1 g/cm³ at 4°C.
Specific gravity (relative density) is defined relative to water at 1 g/cm³, making g/cm³ intuitive for chemists. Gemstone density is expressed in g/cm³: diamond = 3.52 g/cm³, sapphire = 4.0 g/cm³. Metals: iron = 7.87 g/cm³, copper = 8.96 g/cm³.
Interesting fact: The human body has an average density of about 0.985 g/cm³ — just below water — which is why most people float. Fat has a density of ~0.9 g/cm³ while muscle is ~1.06 g/cm³.
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 g/cm³ 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 = 1 g/cm³ = 0.578 oz/in³ — a universal anchor for density comparisons.
Exact factor: 1 g/cm³ = 0.578 oz/in³. Reverse: 1 oz/in³ = 1.73 g/cm³.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.