Unit µG microgauss Magnetic Flux Density Microgauss (µG) is a unit used to measure magnetic flux density, which is a fundamental property of magnetic fields describing the strength of the field. Magnetic flux density is represented by "B" and is a vector quantity representing the amount of magnetism or magnetic force exerted at a given point in space. The unit Gauss (G) is named after the mathematician and physicist Carl Friedrich Gauss, and it represents the centimeter-gram-second (CGS) system of units for magnetic field. 1 Gauss is equivalent to 1 Maxwell per square centimeter. Microgauss (µG) is a smaller unit of Gauss, where 1 µG is one-millionth (10^-6) of a Gauss. In the International System of Units (SI), the standard unit for measuring magnetic flux density is Tesla (T), where 1 Tesla = 10,000 Gauss or 1 Gauss = 10^-4 Tesla. Consequently, 1 µG = 10^-10 Teslas. Microgauss is often used to measure very weak magnetic fields, such as those generated by the Earth's magnetic field, or biological and environmental systems, where the strength of the magnetic field is much smaller than 1 Gauss.