Magnetic Pull Force Calculator

Calculate the magnetic pull force between two magnets based on their magnetic strengths and the distance between them.

Input Parameters

Calculation Results

Calculation Formula

F = (μ₀ · m₁ · m₂) / (4π · r²)

Where:
F = Magnetic Pull Force (Newtons)
μ₀ = Permeability of free space (4π × 10⁻⁷ T·m/A)
m₁ = Magnetic Strength of Magnet 1 (A·m²)
m₂ = Magnetic Strength of Magnet 2 (A·m²)
r = Distance between magnets (meters)

Result

-- N

Magnetic Pull Force Calculator Usage Guide

Learn how to use the Magnetic Pull Force Calculator and its working principles

How to Use the Calculator

  1. Enter the magnetic strength of the first magnet in A·m².
  2. Enter the magnetic strength of the second magnet in A·m².
  3. Enter the distance between the centers of the two magnets in meters.
  4. Click the "Calculate" button to compute the magnetic pull force.
  5. The result will be displayed in Newtons (N).

Working Principle

The calculator uses the formula for the magnetic force between two magnetic dipoles:

\[ F = \frac{\mu_0 \cdot m_1 \cdot m_2}{4\pi \cdot r^2} \]

Where:

  • \( F \) is the magnetic pull force (in Newtons)
  • \( \mu_0 \) is the permeability of free space (\( 4\pi \times 10^{-7} \) T·m/A)
  • \( m_1 \) and \( m_2 \) are the magnetic strengths of the two magnets (in A·m²)
  • \( r \) is the distance between the centers of the two magnets (in meters)

This formula assumes that the magnets are point dipoles and that the distance between them is much larger than their sizes.