Pull Force Calculator
Magnetic Pull Force Calculator
Calculate the attractive force between two magnets based on their magnetic properties.
Result
The calculated pull force between the magnets.
F = (B₁ × B₂ × A) / (2 × μ₀ × d²)
Where:
F = Force in Newtons
B₁, B₂ = Magnetic field strengths in Tesla (converted from Gauss)
A = Contact area in m²
μ₀ = Permeability of free space (4π×10⁻⁷ N/A²)
d = Distance in meters
Frequently Asked Questions
Pull force is the amount of force required to separate a magnet from a flat steel surface when the magnet and metal have full and direct surface-to-surface contact. It’s typically measured in pounds or newtons and is a key specification for magnet performance.
This calculator provides theoretical estimates based on standard formulas. Actual pull force can vary due to factors like material purity, surface conditions, temperature, and real-world imperfections. For critical applications, always verify with physical testing.
Magnetic force follows an inverse square law with distance – this means the force decreases with the square of the distance between the magnets. Even small increases in distance can dramatically reduce the pull force.
Yes, the electromagnetic calculator is specifically designed for solenoid and electromagnet applications. It accounts for current, coil turns, core area, and air gap – the key factors in electromagnet force calculation.