Speaker Impedance Calculator

Calculate the total impedance for series, parallel, and series-parallel speaker wiring configurations. Supports mixed impedance drivers.

Quick Calculator (Equal Speakers)

For identical speakers. Enter the impedance of one speaker and the quantity.

Ω
Ω
Optional — for safety check
Common:
Total Impedance
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Formula
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Status
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Power Share (each)
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Mixed Impedance Calculator

For speakers with different impedances. Add each driver, choose series or parallel wiring, and see the combined load.

Ω
Driver Label Impedance (Ω) Power Share
Total Impedance
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Formula
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Status
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Series-Parallel Combiner

Connect groups of speakers in series, then wire those groups in parallel (or vice versa). Enter speakers per group and the number of groups.

Ω
Wired in series
Groups wired in parallel
Ω
Group Impedance
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Total Impedance
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Total Speakers
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Status
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Quick Reference

Resulting impedance for common equal-speaker configurations.

Speakers Wiring Each @ 4 Ω Each @ 8 Ω Each @ 16 Ω