Specific Gravity To Weight Calculator

Weight Formula:

\[ Weight = Volume \times Specific\ Gravity \times Density\ of\ Water \times Gravity \]

Volume:

m³

Specific Gravity:

Density of Water:

kg/m³

Gravity:

m/s²

Weight:

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1. What is the Specific Gravity to Weight Formula?

The Specific Gravity to Weight formula calculates the weight of a substance based on its volume, specific gravity, the density of water, and gravitational acceleration. It provides a way to determine the weight of materials in various scientific and engineering applications.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ Weight = Volume \times Specific\ Gravity \times Density\ of\ Water \times Gravity \]

Where:

\( Volume \) — Volume of the substance (m³)
\( Specific\ Gravity \) — Ratio of substance density to water density (dimensionless)
\( Density\ of\ Water \) — Typically 1000 kg/m³ at 4°C
\( Gravity \) — Gravitational acceleration, typically 9.8 m/s² on Earth

Explanation: The formula calculates weight by accounting for the substance's density relative to water and the gravitational force acting on it.

3. Importance of Weight Calculation

Details: Accurate weight calculation is crucial for engineering designs, material science, fluid mechanics, and various industrial applications where precise measurements are required.

4. Using the Calculator

Tips: Enter volume in cubic meters, specific gravity as a dimensionless value, density of water in kg/m³ (default is 1000), and gravitational acceleration in m/s² (default is 9.8). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is specific gravity?
A: Specific gravity is the ratio of the density of a substance to the density of a reference substance (typically water at 4°C).

Q2: Why use the density of water in this calculation?
A: Since specific gravity is defined relative to water's density, we need the actual density of water to calculate the absolute density of the substance.

Q3: Can I use different units?
A: The calculator uses SI units. For other unit systems, you'll need to convert values to the appropriate SI equivalents before calculation.

Q4: Does gravity vary significantly on Earth?
A: Gravity varies slightly with location and altitude, but for most practical applications, 9.8 m/s² is sufficiently accurate.

Q5: What if I need mass instead of weight?
A: Mass can be calculated as \( Volume \times Specific\ Gravity \times Density\ of\ Water \). Weight is mass multiplied by gravity.