Mcmillan Calculator
A calculator for the McMillan equation used in magnetic circuit design, calculating the magnetic field intensity (H) based on current, turns, and path length.
Published by:
isCalculator Editorial Team
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How to use this tool?
How to use the McMillan Calculator
- Enter Current (I) in Amperes – Input a positive number (e.g., 5).
- Enter Number of Turns (N) – Input a positive integer (e.g., 100).
- Enter Path Length (l) in meters – Input a positive number (e.g., 0.5).
- Click "Calculate" – The result (magnetic field intensity H) appears in A/m.
Formula: H = (N × I) / l
Note: All inputs must be positive. Use metric units (Amperes, meters). The calculator validates inputs and shows errors if invalid.
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Frequently Asked Questions
The McMillan equation calculates the magnetic field intensity H in a magnetic circuit: H = (N * I) / l, where N is number of turns, I is current in amperes, and l is the mean path length in meters.
Current is in amperes (A), length in meters (m), and the result is in amperes per meter (A/m).
Yes, you can enter decimal values for current and length. The number of turns must be an integer.