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Learning CenterFind the Right Neodymium Magnet
Browse every magnet we stock by shape, size and grade. Set the size range that works for you, and the other sliders narrow to what we have.
Choose a Size
Drag the two handles on a slider to set the smallest and largest size you can use, or bring them together for one exact size. Each slider only shows sizes we stock with your other choices.
Advanced Filters
Can’t find the exact size or grade you need? We can help source custom neodymium magnets for your application. Request a custom quote
Help Choosing a Magnet
Measuring
Measure with calipers if you can. Discs are diameter × thickness, rings are outside diameter × inside diameter × thickness, and blocks are length × width × thickness, where thickness is the direction the magnet is magnetized.
Grades
The number is strength: N52 is stronger than N42 at the same size. A letter after it (H, SH) means the magnet keeps its strength at higher temperatures. Standard grades work up to 80 °C (176 °F).
Pull Force
Pull force is measured straight off thick steel. Holding something on a wall takes much more: plan for 7 to 10 times the item’s weight on a vertical surface.
- Magnet Size Chart: Inches, Fractions and mm
- Which Magnet Shape Should I Choose?
- N42 vs N52: Which Grade Should I Buy?
- How Many Magnets Do I Need?
- Magnet Pull Force Calculator
- Magnetization Directions Explained
- Metric vs Imperial Screws for Countersunk Magnets
- Magnet Learning Center
Need a Custom Size or a Bulk Quantity?
We source custom neodymium magnets in other sizes, grades and coatings, and quote volume orders by email.