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Density Converter

Convert density between units like g/cm³, lb/ft³, kg/m³, oz/in³, and more — with full support for advanced engineering and scientific formats.

Enter Density to Convert

Show units like g/L, t/m³, oz/in³, lb/gal, etc.

Converted Density

Result: –


🔍

    Overview: Convert Density Units Accurately

    The Density Converter helps you instantly convert between different units of density—a key physical property used in fluid mechanics, materials engineering, packaging, and chemistry. Whether you're comparing wood to steel, converting fuel densities, or analyzing fluid dynamics, this tool provides precise results.

    Supports both basic units like: kg/m³, g/cm³, lb/ft³, lb/in³, slug/ft³ and advanced units in “Advanced Mode” like: g/L, t/m³, oz/in³, lb/gal (US & Imperial).

    The conversion is handled entirely in-browser. Mobile-friendly, registration-free, and built for quick comparisons.

    Formula & Methodology

    All unit conversions are done via a two-step pivot through kilograms per cubic meter (kg/m³):

    1. Convert input unit → kg/m³
    2. Convert kg/m³ → target unit

    Example: Convert 1 g/cm³ to lb/ft³:

    1 g/cm³ = 1000 kg/m³  
1000 ÷ 16.018463374 = 62.428 lb/ft³

    Selected conversion factors (to/from kg/m³):

    • g/cm³ ↔ kg/m³: ×1000 / ÷1000
    • lb/ft³ ↔ kg/m³: ×16.018463374 / ÷16.018463374
    • lb/in³ ↔ kg/m³: ×27679.90471 / ÷27679.90471
    • g/L ↔ kg/m³: ×1 / ÷1
    • oz/in³ ↔ kg/m³: ×1729.99404 / ÷1729.99404
    • slug/ft³ ↔ kg/m³: ×515.378818 / ÷515.378818
    • lb/gal (US) ↔ kg/m³: ×119.826427 / ÷119.826427
    • lb/gal (Imp) ↔ kg/m³: ×99.77637052 / ÷99.77637052

    Examples

    • Convert 0.8 g/cm³ (plastic) to lb/ft³: 0.8 × 1000 = 800 kg/m³ → 800 ÷ 16.018463374 ≈ 49.92 lb/ft³
    • Convert 62.4 lb/ft³ (water) to g/cm³: 62.4 × 0.06242796 ≈ 999.99 kg/m³ → ÷1000 = 0.99999 g/cm³
    • Convert 1.225 kg/m³ (air at sea level) to slug/ft³: 1.225 ÷ 515.378818 ≈ 0.002377 slug/ft³
    • Convert 1 oz/in³ (metal) to t/m³: 1 × 1729.99404 = 1729.99 kg/m³ → ÷1000 = 1.73 t/m³
    • Convert 1000 g/L (water) to lb/gal (US): 1000 ÷ 119.826427 ≈ 8.3454 lb/gal (US)

    Use Cases

    • 🏗️ Material selection: Compare densities of building materials like steel, concrete, or foam.
    • 🔬 Chemistry & pharmaceuticals: Convert solution densities like g/L to lb/gal.
    • 🛢️ Petroleum engineering: Switch between US/Imperial density units in fluid transport systems.
    • 🌊 Environmental analysis: Assess density of water samples or air quality at varying altitudes.

    Frequently Asked Questions

    🔄 What units can I convert?

    Basic units: kg/m³, g/cm³, lb/ft³, lb/in³, slug/ft³ Advanced Mode adds: g/L, t/m³, oz/in³, lb/gal (US and Imperial)

    📉 How are conversions calculated?

    All conversions go through the SI unit kg/m³. The input is normalized and then reconverted to the target using exact constants.

    🧪 Why use Advanced Mode?

    Advanced Mode is ideal for specific industries—pharma (oz/in³), chemicals (g/L), oil & gas (lb/gal), aerodynamics (slug/ft³).

    📱 Can I use it offline?

    Yes, once loaded, the tool functions entirely in your browser—even without internet.

    🧮 Is the converter precise?

    Absolutely. All results are accurate to six decimal places. The tool uses industry-standard constants for precision and consistency.

    📐 What is density exactly?

    Density = mass ÷ volume. It indicates how much matter fits in a given space, and it affects buoyancy, pressure, and material selection.

    🛠️ Can I adjust for temperature or pressure?

    This tool assumes standard temperature and pressure (STP). For temperature-dependent fluids, consult specific fluid property charts.