Use this electronics calculation for a first-pass component, converter, signal, motor, or sensor estimate when the stated operating conditions and units match the device data.

Frequency (Hz)

Number of cycles per second.

Convert a repetitive event rate into its period, T = 1 / f; a 50 hertz mains supply completes one cycle every 20 milliseconds. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Period (s)

Duration of one complete cycle.

• Compact electronics formulas omit some combination of tolerances, temperature drift, bandwidth, loading, parasitics, noise spectrum, nonlinearity, clipping, calibration, layout, and device-specific limits. Typical datasheet values are not guaranteed limits.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check the result against the current datasheet and worst-case operating corners, then verify the circuit or measurement with simulation and bench testing where failure matters.

• Period to Frequency Calculator

  Convert the duration of one cycle into its repetition rate, f = 1 / T.

• Memory Latency from Cycles

  Convert a latency measured in clock cycles to nanoseconds using a clock frequency in hertz. Ensure the cycle count and frequency refer to the same clock domain.

• Op-Amp PSRR dB to Linear

  Convert power-supply rejection ratio from voltage-ratio decibels to a linear rejection factor, 10^(PSRR/20). A 80 dB PSRR means a 10,000:1 small-signal voltage rejection at the stated frequency.