As toroid inductors have more number of turns it can carry more currents. The program has additional plugins to calculate another manner of coils. Some of these inductors include multilayer coil, toroidal onelayer coil, coil on a ferrite ring. You can also find the inductance and other parameters of an air core solenoid. Toroidal inductors are used where large inductance are required at low frequency levels. Toroidal transformer calculation calculator youtube. Toroidal coils without a magnetic core are used very rarely. The online calculator uses the wire diameter to determine its length and the possibility of fitting it in the inner diameter of the toroid. This online electrical calculator allows you to calculate the toroid inductance value per turn. Toroid inductor formulas and calculator ness engineering. A simple program to calculate the toroidal transformers. All of the formulas on this page are shown assuming an air core toroidal inductor. Toroid coil winding calculator use this online tool to calculate the number of winding turns required to achieve the desired inductance with ferrite and iron powder toroidal cores.