Amp & Speaker Calculator by karaniph

Amp & Speaker Calculator helps you match amplifiers to speakers correctly, so you get the sound you want without frying your gear.

Features: • Calculate amplifier power vs. speaker power handling • Check impedance (ohms) matching and safe load ranges • Estimate real-world SPL (sound pressure level) at your listening distance • Pro mode with advanced settings for room acoustics, amplifier class, and headroom • Beginner mode with sensible defaults if you just want a quick answer • Product recommendations to help you shop for compatible gear

Works for car audio, home theater, PA systems, and studio monitoring. No sign-up, no data collection everything runs locally in your browser.