Home Back

Calculate Tension in a Cable

Tension Formula:

\[ T = \frac{F}{\cos(\theta)} \]

newtons
degrees

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is Cable Tension Calculation?

Definition: This calculator determines the tension in a cable when a force is applied at an angle.

Purpose: It helps engineers and technicians design and analyze cable systems in construction, bridges, and mechanical applications.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ T = \frac{F}{\cos(\theta)} \]

Where:

Explanation: The tension increases as the angle increases because more of the force must be supported horizontally.

3. Importance of Cable Tension Calculation

Details: Proper tension calculation ensures cable systems can safely support loads without failure or excessive sagging.

4. Using the Calculator

Tips: Enter the applied force in newtons and the angle in degrees (0-90). The angle must be less than 90° for valid results.

5. Frequently Asked Questions (FAQ)

Q1: Why does tension increase with angle?
A: At higher angles, more of the force must be supported horizontally, increasing the tension required to maintain equilibrium.

Q2: What happens at 90 degrees?
A: At exactly 90 degrees, the tension would theoretically be infinite, which is why the calculator limits angles to less than 90°.

Q3: Does this account for cable weight?
A: No, this calculates tension from an external load only. For cable self-weight, use catenary equations.

Q4: What units should I use?
A: The calculator uses newtons for force and degrees for angles. Convert other units before input.

Q5: How accurate is this calculation?
A: It provides theoretical tension for ideal conditions. Real-world factors like friction and stiffness may affect actual tension.

Cable Tension Calculator© - All Rights Reserved 2025