Free online calculator
AC voltage converter calculator

Example Peak = 325.3 V — RMS = 230 V — Pk-Pk = 650.5 V — Rectified avg = 207.1 V
Sine wave assumed. — —
What you enter
- Known value (V)
- ...expressed as
Free online calculator

Example Peak = 325.3 V — RMS = 230 V — Pk-Pk = 650.5 V — Rectified avg = 207.1 V
Sine wave assumed. — —
What you enter
Antenna length— the element is then a fraction of that wavelength, trimmed by a shortening factor k: for a quarter-wave. Two things trip people up. A λ/4 whip is…
Decibel converterVoltage: — Power: . Power goes as voltage squared, which is the whole reason for the 20 against the 10. A bench dB question is usually absolute, not…
Operational amplifierNon-inverting: — Inverting:
Slew rate & bandwidthFull-power bandwidth: — the highest frequency at which the op-amp can still swing the whole amplitude. Past it the output stops following and simply…
Speaker crossover (1st order)A series capacitor keeps the lows out of the tweeter; a series inductor keeps the highs out of the woofer. First order = 6 dB/octave each side, crossing…
AWG ↔ mm²The gauge is geometric, not a lookup table: mm, and . Resistance assumes copper at 20 °C.
Battery life— efficiency is entered as a percentage and applied as a fraction.