inductor calculator

Turns		Diameter		Length		Depth		Units: inches cm		Calculate
								Single-layer coil Multilayer, multirow coil Multilayer, single-row coil Toroid-winding calculator
The inductance formula above requires units in inches.
To calculate the inductance of a single-layer, air-core coil: 1. Select the measurement units (inches or centimeters). 2. Enter the number of turns (windings). 3. Enter the coil diameter (form diameter + wire diameter - see diagram). 4. Enter the coil length (distance from first to last winding - see diagram). 5. Click Calculate.