Pressure Formula:
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Definition: This calculator converts force in pounds-force (lbf) to pressure in pounds per square inch (psi) based on the contact area.
Purpose: It helps engineers, mechanics, and construction professionals determine pressure exerted by a given force over a specific area.
The calculator uses the formula:
Where:
Explanation: Pressure is calculated by dividing the applied force by the area over which the force is distributed.
Details: Proper pressure calculation ensures structural integrity, proper hydraulic system operation, and safe load distribution in mechanical systems.
Tips: Enter the force in pounds-force and the area in square inches. Both values must be > 0.
Q1: What's the difference between lbf and psi?
A: Lbf measures force, while psi measures pressure (force per unit area).
Q2: What's a typical psi range for hydraulic systems?
A: Most hydraulic systems operate between 1,000-3,000 psi, but this varies by application.
Q3: How do I measure the contact area?
A: Measure the surface area where the force is applied in square inches (length × width for rectangular areas).
Q4: Can I use this for tire pressure calculations?
A: Yes, if you know the vehicle weight (force) and total tire contact area.
Q5: What if my area is in other units?
A: Convert to square inches first (1 ft² = 144 in², 1 cm² ≈ 0.155 in²).