Calculadora de Período e Frequência

T = 1/f — relação entre período e frequência.
Created by
Renato Passos, Eng. de Software
Reviewed by
Renato Passos, Eng. de Software

Last updated: Apr 18, 2026

Período T
0,020000 s
T em ms
20,0000 ms

Formula

T = 1/f

About this calculator

This calculator converts between period (T) and frequency (f) of a periodic motion. Period is the time to complete one cycle, measured in seconds. Frequency is the number of cycles per second, measured in hertz (Hz). The formula used is T = 1/f, or f = 1/T, expressing the inverse relationship between the two quantities.

To use the tool, enter the known value (period or frequency) and the corresponding unit. The calculator automatically converts to the base unit (seconds or hertz) and calculates the opposite quantity. The result is displayed with various time and frequency units, making interpretation easy.

This tool is useful in fields such as physics, engineering, music, and electronics. For example, when designing an oscillator circuit, you can determine the frequency from the period of a signal. Or, when analyzing sound waves, you can calculate the period from the frequency of a musical note.

Be careful with units: ensure the period is in seconds (or correctly converted) and the frequency in hertz. Very large or small values may require scientific notation. The calculator handles common conversions, but it is important to input the correct value in the proper unit.

Frequently asked questions

What are period and frequency?

Period is the time to complete one cycle of a repetitive motion. Frequency is the number of cycles per second. They are inversely proportional: T = 1/f.

How to convert period to frequency?

Divide 1 by the period in seconds. For example, a period of 2 seconds corresponds to a frequency of 0.5 Hz.

What units can I use?

For period: seconds, milliseconds, microseconds, nanoseconds. For frequency: hertz, kilohertz, megahertz, gigahertz.

Does this calculator work for waves?

Yes, for any periodic motion, including mechanical waves, electromagnetic waves, and sound.

What if the result is very small or large?

Use scientific notation or convert to appropriate units. The calculator displays results in multiple units for convenience.

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