1. What is Relative Density to Density Calculator?

Definition: This calculator converts relative density (specific gravity) to absolute density using the density of water as a reference.

Purpose: It helps engineers and scientists determine material density when only the relative density is known.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \rho \) — Density of material (kg/m³)
• \( RD \) — Relative density (specific gravity, unitless)
• \( \rho_{water} \) — Density of water (typically 1000 kg/m³)

Explanation: Relative density is multiplied by water density to obtain the absolute density of the material.

3. Importance of Density Calculation

Details: Knowing material density is crucial for buoyancy calculations, material selection, and various engineering applications.

4. Using the Calculator

Tips: Enter the relative density (specific gravity) and water density (default 1000 kg/m³). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is relative density?
A: Relative density (specific gravity) is the ratio of a material's density to the density of water at 4°C.

Q2: Why is water density typically 1000 kg/m³?
A: This is the density of pure water at standard temperature (4°C) and pressure (1 atm).

Q3: When would I need to change the water density value?
A: For high-precision calculations where temperature affects water density, or when using other reference liquids.

Q4: What are typical relative density values?
A: Most rocks: 2-3, metals: 7-19, woods: 0.2-1.2, plastics: 0.9-2.2.

Q5: How is this different from specific gravity?
A: They're essentially the same - both are unitless ratios comparing material density to water density.