MRI (Magnetic Resonance Imaging) magnets are incredibly strong. They are typically measured in units of Tesla (T), and the strength can vary depending on the type of MRI machine. The standard MRI machines used in hospitals typically have a magnet strength between 1.5 to 3 Tesla, while some research or specialized clinical MRI machines can have even higher field strengths, up to 7 Tesla or more. To put this into perspective, these magnets are thousands of times stronger than the Earth's magnetic field. The high strength allows for detailed and precise imaging of the human body, aiding in the diagnosis and treatment of various medical conditions.