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Two ideal parallel inductors calculator
Calculate equivalent inductance for two uncoupled ideal inductors connected in parallel.
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Equivalent inductance6.67mH
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How to calculate
Calculate equivalent inductance for two uncoupled ideal inductors connected in parallel.
Equivalent inductance =
L1*L2/(L1+L2) mHWorked example
- First inductance (mH): 10
- Second inductance (mH): 20
- Equivalent inductance: 6.67 mH
Assumptions and limits
This is an ideal educational model. Enter quantities in the stated SI units; it does not certify equipment safety or real operating limits. Mutual inductance, winding resistance, parasitic capacitance and saturation are excluded.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Calculate equivalent inductance for two uncoupled ideal inductors connected in parallel. The equivalent value is smaller than either positive input. Magnetically coupled coils need another model.
When this tool is useful
The equivalent value is smaller than either positive input. Magnetically coupled coils need another model.
Understanding your inputs
| Input | Example |
|---|---|
First inductance (mH) L1 | 10 |
Second inductance (mH) L2 | 20 |
Frequently asked questions
Which assumptions matter for this result?
This is an ideal educational model. Enter quantities in the stated SI units; it does not certify equipment safety or real operating limits. Mutual inductance, winding resistance, parasitic capacitance and saturation are excluded.
How can I check the worked example?
Use the displayed example inputs in the stated formula. Keep each quantity in its labelled unit and compare the unrounded result before applying display rounding.