1. What is Specific Weight of Water?

Specific weight (γ) is the weight per unit volume of a material. For water, it represents the force exerted by water's weight per cubic meter, calculated as the product of density (ρ) and gravitational acceleration (g).

2. How Does the Calculator Work?

The calculator uses the specific weight formula:

Where:

• \( \gamma \) — Specific weight (N/m³)
• \( \rho \) — Density of water (kg/m³)
• \( g \) — Gravitational acceleration (m/s²)

Explanation: The formula calculates the weight force of water per unit volume, which is essential in fluid mechanics and hydraulic engineering applications.

3. Importance of Specific Weight Calculation

Details: Specific weight is crucial for designing hydraulic structures, calculating buoyancy forces, determining fluid pressures, and analyzing fluid behavior in various engineering applications.

4. Using the Calculator

Tips: Enter water density in kg/m³ (typically 1000 kg/m³ for pure water) and gravitational acceleration in m/s² (typically 9.81 m/s² on Earth). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical specific weight of water?
A: For pure water at 4°C on Earth, the specific weight is approximately 9810 N/m³ (1000 kg/m³ × 9.81 m/s²).

Q2: How does temperature affect specific weight?
A: Temperature affects water density. Warmer water has lower density, resulting in slightly lower specific weight values.

Q3: What's the difference between specific weight and density?
A: Density is mass per unit volume (kg/m³), while specific weight is weight per unit volume (N/m³). Specific weight includes the gravitational component.

Q4: Does specific weight change with location?
A: Yes, since gravitational acceleration varies slightly with latitude and altitude, specific weight will also vary accordingly.

Q5: When is specific weight used in engineering?
A: Specific weight is used in hydraulic engineering, buoyancy calculations, pressure determination, and structural design involving fluids.