Specific Gravity to Density Formula:
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Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance (typically water at 4°C). This calculator converts specific gravity to density in pounds per cubic foot (lb/ft³) using the standard conversion factor.
The calculator uses the conversion formula:
Where:
Explanation: The formula multiplies the specific gravity by the density of water (62.4 lb/ft³) to obtain the density of the substance in the same units.
Details: Density calculation from specific gravity is essential in various engineering, scientific, and industrial applications where material properties need to be quantified and compared.
Tips: Enter the specific gravity value (must be greater than 0). The calculator will automatically compute the corresponding density in lb/ft³.
Q1: What is specific gravity?
A: Specific gravity is a dimensionless quantity that represents the ratio of the density of a substance to the density of water at a specified temperature.
Q2: Why is 62.4 used in the formula?
A: 62.4 lb/ft³ is the density of pure water at 4°C (39.2°F), which is the standard reference temperature for specific gravity measurements.
Q3: Can this calculator be used for any material?
A: Yes, this conversion works for any material as long as you have an accurate specific gravity measurement relative to water.
Q4: What are typical specific gravity values?
A: Most materials have specific gravity values between 0.5 (light materials like some woods) to 19+ (very dense materials like gold).
Q5: How accurate is this conversion?
A: The conversion is mathematically exact. The accuracy depends on the precision of your specific gravity measurement and the assumption that water density is exactly 62.4 lb/ft³ for your application.