In SI units, the gyroradius is given by:formula_1,where formula_2 is the mass of the particle, formula_3 is the component of the velocity perpendicular to the direction of the magnetic field, formula_4 is the electric charge of the particle, and formula_5 is the strength of the magnetic field.
: formula_1:* formula_2 Ларморовский радиус,:* formula_3 масса заряжённой частицы,:* formula_4 скорость, перпендикулярная линии магнитного поля,:* formula_5 заряд частицы,:* formula_6 магнитная индукция.