The magnetic field converter is a free online tool that helps you convert between physics units quickly and accurately. It supports 4 units including Tesla (T), Gauss (G), Oersted (Oe), Millitesla (mT). The core conversion formula is: 1 T = 10,000 G. For example, 1 Tesla equals approximately 10,000 Gauss. Conversely, 1 Gauss equals approximately 0.0001 Tesla. Common conversions: 5 T = 50,000 G, 10 T = 100,000 G, 25 T = 250,000 G, 50 T = 500,000 G, 100 T = 1,000,000 G. This converter is useful for students, engineers, scientists, and professionals who need accurate physics unit conversions. Whether you are working on homework, technical specifications, research data, or everyday measurements, this tool provides instant, reliable results. All conversions are calculated relative to a single base unit for consistency and precision across all supported units. Earth's magnetic field is about 25-65 microtesla. MRI machines use magnetic fields of 1.5 to 3 Tesla.