Biorhythm Calculator

Free online Biorhythm Calculator with the most extras. Biorhythm calculator for everyone who wants to know their current physical, emotional and intellectual levels. If you want to know the peak points of your physical, emotional and intellectual capacity, enter your date of birth and we will give you the curves in a second.

Biorhythm Calculator with most extras.


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Biorhythm types

How Can I use the Biorhythm Calculator?

The Biorhythm Calculator Chart displays the four primary biorhythms by default. You can set your birthday to get your biorhythm values. You can also drag the biorhythm chart left or right using the left mouse button or use the mouse wheel to scroll. The black rectangle that marks one of the days in the chart is called the X day. You can change the X day by dragging it with the right mouse button or by holding the Ctrl key and dragging it with the left mouse button.

At the bottom-right of the chart, a legend can be found, containing the names and the colors of the displayed biorhythms. By clicking the color square or the labels, the color used to draw the corresponding biorhythm in the chart can be changed.  At the top-left and top-right of the chart are two labels with the first and last day displayed in the chart. Clicking on the labels, a date picker is displayed to modify the corresponding value. The other value will be modified accordingly. The chart will always display the biorhythm’s charts for a range of 30 days.

The first and last days can also be modified by scrolling or dragging the chart right/left. Bellow the chart a section exists that shows the current values (as percentages) of the displayed biorhythms for the X day. Credit goes to Alexandru Luga who made this excellent Biorhythm Calculator.

What does biorhythm mean? What is biorhythm calculation good for?

The developer of biorhythm was Wilhelm Fliess [1], who was born and practised in Berlin in the 19th century. He believed that human life is interwoven with cyclic events. According to his theory, this cyclicity is valid for the physical, emotional and intellectual status of humans. This way, a formula may be used to calculate why we are full of energy one day or completely devastated a few weeks later.

What does the physical state mean in the Biorhythm Calculator?

Physical state in the biorhythm describes our general well-being, physical energy and vitality. This cycle lasts for 23 days.

What does the emotional state mean in the Biorhythm Calculator?

The emotional cycle, which is 28 days long, quantifies our creativity, sensitivity, mood and consciousness.

What does the intellectual state mean in the Biorhythm Calculator?

The intellectual state, which is the longest of all cycles (33 days) informs us about our logical skills, the operation of our memory, the analytical skills of our mind and our sharp wit in general.

How is biorhythm calculated and interpreted?

Biorhythm is calculated from the cycles explained above with the following formula:

sin(2π*cycle length)

Values vary between +100% and -100%. Within the biorhythm, +100 percent of status means the best, highest value and -100 percent means the worst, lowest value. The daily changes of curves show clearly how your different biorhythm levels changed in the past and what is expected for the following days.

What do the secondary biorhythm curves mean?

  • Passion – A curve derived from the result of physical and emotional cycles.
  • Mastery – A curve derived from the result of physical and intellectual cycles.
  • Wisdom – A biorhythm curve derived from the outcome of intellectual and emotional cycles.

What do extra biorhythm curves mean?

  • Perception – A curve derived from the interaction of physical and intuitive cycles.
  • Psychic = Curve derived from the interaction of emotional and intuitive cycles.
  • Success = Curve derived from the interaction of intellectual and intuitive cycles.

What does the I-Ching biorhythm curve mean?

Aesthetic, Self-Awareness and Spiritual biorhythms are based on the I-Ching (also called Book of Changes), one of fundamental books of Confucianism, that was written more than 3000 years ago in China. Aesthetic cycle is 43 days long and describes interest in the beautiful and the harmonious, Self-Awareness – 48 days, it expresses ability to percept own personality and individuality, and Spiritual – 53 days, describes inner stability and relaxed attitude. 


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