Physics
Frequency from the period
Frequency is the reciprocal of the period, the time for one complete cycle.
The Formula
f = 1 / T
Frequency is the reciprocal of the period, the time for one complete cycle.
| Symbol | Meaning | Unit | Notes |
|---|---|---|---|
| f | Frequency | hertz | Cycles per second, in hertz. |
| T | Period | seconds | Time for one complete cycle, in seconds. |
What Each Symbol Means
fhertz
Frequency
Cycles per second, in hertz.
Tseconds
Period
Time for one complete cycle, in seconds.
See It Worked With Real Numbers
A formula on its own does not tell you which number goes where. The how to calculate frequency page applies this equation to a concrete case, shows every intermediate step, and names the mistakes that produce a wrong answer even when the algebra is right.
Where This Formula Appears
This equation is the working core of How To Calculate Frequency, filed under Science. Every number the guide produces comes from substituting into this one line.