1. What is Pressure from Weight?

Pressure is the force applied perpendicular to the surface of an object per unit area. When weight (a force due to gravity) is applied to a surface, it creates pressure that depends on both the weight and the contact area.

2. How Does the Calculator Work?

The calculator uses the pressure equation:

Where:

• \( P \) — Pressure (Pascals or PSI)
• \( F \) — Force (Newtons or pounds)
• \( A \) — Contact area (m² or in²)
• \( m \) — Mass (kg or lb)
• \( g \) — Gravitational acceleration (9.81 m/s² or 32.2 ft/s²)

Explanation: The calculator first calculates the force from mass and gravity, then divides by the contact area to get pressure.

3. Importance of Pressure Calculation

Details: Pressure calculations are essential in engineering, construction, and physics to ensure structures can support weights without failing or deforming.

4. Using the Calculator

Tips: Enter mass in kg or lb, contact area in m² or in², and select your unit system. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between force and pressure?
A: Force is the total push or pull, while pressure is force distributed over an area. The same force creates higher pressure on a smaller area.

Q2: Why does unit system matter?
A: Different unit systems use different constants for gravity (9.81 m/s² vs 32.2 ft/s²) and different base units.

Q3: What is standard atmospheric pressure?
A: Approximately 101,325 Pa or 14.7 PSI at sea level.

Q4: How does pressure relate to structural integrity?
A: Materials have pressure limits (yield strength). Exceeding these can cause permanent deformation or failure.

Q5: Can this calculate tire pressure?
A: Yes, if you know the vehicle's weight and tire contact area, though real-world tire pressure involves additional factors.