Torque Formula:
From: | To: |
Definition: This calculator converts pressure (psi) and area (in²) into an approximate torque value in foot-pounds (ft-lbf).
Purpose: It helps engineers and mechanics estimate torque based on hydraulic pressure or other pressure measurements.
The calculator uses the formula:
Where:
Explanation: The pressure multiplied by area gives force in pounds, then divided by 12 converts inch-pounds to foot-pounds.
Details: This conversion is essential for hydraulic systems, bolt tensioning, and any application where pressure needs to be translated into rotational force.
Tips: Enter the pressure in psi and the effective area in square inches. Both values must be > 0.
Q1: Why divide by 12 in the formula?
A: This converts inch-pounds to foot-pounds (12 inches = 1 foot).
Q2: What's a typical application for this calculation?
A: Hydraulic torque wrenches, cylinder force calculations, and pneumatic systems often use this conversion.
Q3: How accurate is this approximation?
A: It provides a good estimate but doesn't account for efficiency losses, friction, or other real-world factors.
Q4: Can I use this for bolt torque calculations?
A: Yes, but for precise bolt torque, consider additional factors like thread friction and lubrication.
Q5: What if I know the radius instead of area?
A: First calculate area using \( A = \pi \times r^2 \) where r is the radius in inches.