Speaker Wiring Calc is an offline speaker impedance and amp-load calculator for car-audio hobbyists, installers, and small PA setups that use series or parallel speaker wiring. Use it to: - calculate the ohms for each series branch - combine parallel branches into a final amp load - compare the final load against your minimum safe load - split amplifier watts across the total speaker count - share a plain-text result sheet before you wire a setup Why people pay for it: - speaker wiring math is easy to second-guess on site - the app makes final amp load obvious before you connect hardware - watts per speaker, total drivers, and load margin stay visible in one sheet - no account, ads, subscription, analytics SDK, brand database, or server dependency Speaker Wiring Calc is a math aid only. It does not inspect hardware, certify compatibility, replace amplifier manuals, or provide electrical safety guidance.