Coil Physical Properties Calculator

Both inductors and electromagnets consist of wires wound around a bobbin or core form. In designing and constructing the coil it becomes necessary to estimate the cross sectional area, and resistance of the coil.

This calculator estimates the physical properties of a coil such as resistance, total length of wire needed and number of windings, give the wire diameter, and bobbin length. The calculator assumes copper wire for resistance and voltage calculations.

Coil Parameters Calculator
Wire Diameter (mm) (See Gauge Table)
Number Turns (turns)
Bobbin Length (mm)
Bobbin Diameter (mm)
Rated DC Current (Optional) (A)
Results

Turns/Winding (Turns/Winding)
Number of Windings (Windings)
Coil Diameter (mm) (in)
Cross sectional Area (mm2) (in2)
Total Length of Wire in Coil (m)
Resistance/meter (ohms/m)
Resistance (ohms)
Voltage at Rated Current (V)
Power at Rated Current (W)
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