1. What is Density Calculation From Specific Gravity?

Density calculation from specific gravity provides the mass per unit volume of a substance relative to water. Specific gravity is the ratio of a substance's density to the density of water at 4°C.

2. How Does the Calculator Work?

The calculator uses the density formula:

Where:

• \( SG \) — Specific Gravity (dimensionless)
• 1000 — Density of water at 4°C (kg/m³)

Explanation: The formula converts specific gravity (relative density) to absolute density in kg/m³ by multiplying by the density of water.

3. Importance of Density Calculation

Details: Density calculation is essential in various fields including engineering, chemistry, and material science for substance identification, quality control, and fluid mechanics calculations.

4. Using the Calculator

Tips: Enter specific gravity value (must be greater than 0). The calculator will compute the density in kg/m³.

5. Frequently Asked Questions (FAQ)

Q1: What is the relationship between specific gravity and density?
A: Specific gravity is the ratio of a substance's density to the density of water. It is dimensionless, while density has units of mass per volume.

Q2: Why use 1000 kg/m³ as the reference?
A: 1000 kg/m³ is the density of pure water at 4°C, which is the standard reference temperature for specific gravity measurements.

Q3: Can this calculation be used for all substances?
A: Yes, this calculation works for any substance where specific gravity is measured relative to water at 4°C.

Q4: What are typical density values for common materials?
A: Water: 1000 kg/m³, Aluminum: ~2700 kg/m³, Iron: ~7870 kg/m³, Air: ~1.2 kg/m³ (at sea level).

Q5: How does temperature affect specific gravity measurements?
A: Temperature affects both the sample density and water density. Specific gravity is typically referenced to water at 4°C to provide consistent comparisons.