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Coil Inductance 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
.
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