Magnet Pull Force Calculator
Calculate the pull force between magnets or between a magnet and a ferromagnetic material. Get accurate results for your engineering projects.
Pull Force Result
Magnetic Flux Density: 0.00 Tesla
Effective Grade: N42
Surface Contact Area: 78.54 mm²
Calculation Details
The pull force is calculated based on the magnet’s grade, size, and the surface material properties. Temperature effects are considered for materials like Neodymium.
For precise engineering applications, always test actual pull forces as surface conditions and alignment affect results.
Safety Warning
⚠️ Strong magnets can cause serious injuries. Always handle with care, keep away from children, and use appropriate protective equipment when working with large magnets.
Magnet Pull Force FAQ
How accurate is this calculator?
This calculator provides theoretical estimates within ±15% of actual pull force under ideal conditions. Real-world results vary based on surface finish, alignment, and material purity.
Why does temperature affect magnet strength?
Magnetic materials lose strength as temperature increases. Neodymium magnets are particularly sensitive, with significant strength loss above 80°C. Our calculator adjusts for temperature effects.
How does an air gap reduce pull force?
Magnetic force decreases rapidly with distance. Even a 1mm air gap can reduce pull force by 50% or more compared to direct contact with a steel surface.