1. What is Density?

Density is a measure of mass per unit volume. It's a fundamental property of materials that helps characterize substances and predict their behavior in different conditions.

2. How Does the Calculator Work?

The calculator uses the density formula:

Where:

• Specific Weight — Weight per unit volume (N/m³)
• g — Acceleration due to gravity (9.81 m/s² on Earth)

Explanation: The formula converts specific weight (a force-based measurement) to density (a mass-based measurement) by accounting for gravitational acceleration.

3. Importance of Density Calculation

Details: Density is crucial in engineering, fluid mechanics, material science, and many other fields. It helps determine buoyancy, material selection, and fluid behavior.

4. Using the Calculator

Tips: Enter specific weight in N/m³ and gravity in m/s² (9.81 for Earth). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between density and specific weight?
A: Density is mass per unit volume (kg/m³), while specific weight is weight per unit volume (N/m³). They're related by gravity.

Q2: What are typical density values?
A: Water is about 1000 kg/m³, air is about 1.225 kg/m³, and metals range from 2700 kg/m³ (aluminum) to 7870 kg/m³ (steel).

Q3: Does density change with location?
A: Mass density is constant, but weight density changes with gravity (e.g., different on Earth vs. Moon).

Q4: How does temperature affect density?
A: Most materials expand when heated, decreasing their density. Water is an exception between 0-4°C.

Q5: What's specific gravity?
A: Specific gravity is the ratio of a material's density to water's density (unitless).