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What Is a Breathing Cycle

One cycle is one pass through the phases you kept above zero. Add the seconds, then you have the length. Repeat that until the session clock runs out.

Breaths / min →Session math →Box breathing →

How it works

A cycle is the sequence the timer repeats: inhale, optional hold, exhale, optional hold after exhale. Disable a phase by setting it to 0 — it does not count. Box breathing at 4-4-4-4 is a 16-second cycle. Equal breathing at 4-4 is an 8-second cycle. Coherent breathing at 5-5 is a 10-second cycle, which is 6 breaths per minute. Breaths per minute is 60 divided by the cycle length. A session is that cycle repeating until the clock hits zero; leftover seconds do not make another cycle.

How to work it out

  1. Write down each phase you will actually breathe — skip anything you set to 0.
  2. Add those seconds. That sum is one cycle.
  3. Divide 60 by the cycle length to get breaths per minute, or open the breaths per minute calculator.
  4. To see how many cycles fit 2, 5, or 10 minutes, open the session calculator, then press Start on the matching timer.

When people look this up

People look this up when a timer shows “cycle” and they want the arithmetic, not a new pattern. It is vocabulary for the tools, not a medical measurement. Ready to breathe? Start box breathing or build your own on the custom timer. Comparing two named techniques? See box breathing vs 4-7-8.

Pattern data

  • Cycle length = sum of phases kept above zero.
  • Box 4-4-4-4: cycle 16 seconds, 3.75 breaths per minute.
  • Equal 4-4: cycle 8 seconds, 7.50 breaths per minute.
  • Coherent 5-5: cycle 10 seconds, 6.00 breaths per minute.
  • 6 breaths per minute = 10 seconds per cycle. 5 breaths per minute = 12 seconds per cycle.
  • 5-minute box session (300 seconds): 18 cycles, 12 leftover seconds.

Box breathing

Pattern data

INHALE
4 sec
HOLD
4 sec
EXHALE
4 sec
HOLD
4 sec
Cycle
16 sec
Cycles / min
~3.75
Session cycles
~18

Equal breathing

Pattern data

INHALE
4 sec
EXHALE
4 sec
Cycle
8 sec
Cycles / min
~7.50
Session cycles
~37

Coherent breathing

Pattern data

INHALE
5 sec
EXHALE
5 sec
Cycle
10 sec
Cycles / min
~6.00
Session cycles
~30

FAQ

What is a breathing cycle?

One full pass through the phases in the pattern. For box breathing that is inhale, hold, exhale, hold. Then the timer starts the same sequence again.

How do you calculate cycle length?

Add the phase durations you kept above zero. Four seconds four times is 16 seconds. Two phases of five seconds is 10 seconds.

How do breaths per minute relate to a cycle?

Breaths per minute is 60 divided by the cycle length in seconds. A 10-second cycle is 6 breaths per minute. Use the breaths per minute calculator if you want the numbers without doing the division.

Does leftover session time count as a cycle?

No. The session ends on the clock. A 16-second box cycle fits 18 times in 5 minutes (288 seconds), leaving 12 seconds. See the session calculator.

Is this medical advice?

No. breathinglab.app provides informational breathing tools and does not provide medical advice.

breathinglab.app provides informational breathing tools and does not provide medical advice.