Breathing Collective
— Free tool · BOLT assessment

Measure your BOLT score.

A guided assessment, a built-in timer, and a running history so you can see whether your breathing is actually improving. Takes about twelve minutes the first time.

Guided protocolBuilt-in timerProgress tracking

Get access

Access is free. You'll also be added to the Beyond Discovery mailing list, and you can unsubscribe at any time.

No spam. Unsubscribe anytime. Your results stay on your device.

What the BOLT score tells you

BOLT stands for Body Oxygen Level Test. It measures how long you can comfortably pause after a normal exhale before your body first tells you to breathe.

It isn't a test of willpower or how long you can hold your breath. It reflects how sensitive your system is to carbon dioxide — a good proxy for breathing efficiency. Lower score, more reactive breathing. Higher score, more capacity.

And it responds to training, which is why it's worth tracking.

Reference ranges

Under 10 secondsVery low
10 – 20 secondsLow
20 – 30 secondsModerate
30 – 40 secondsGood
40 seconds and aboveHigh

General guidance drawn from Buteyko-derived breathing practice. Not a diagnostic tool and not a measure of health or fitness.

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Breathwork and performance coaching. Melbourne in person, online globally.

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Breathwork is a wellbeing practice, not a medical treatment, and does not treat, cure or manage any diagnosed condition. Please speak with Amit and your GP before taking part if you have a cardiovascular condition, blood pressure concerns, epilepsy, glaucoma, a history of aneurysm, a psychiatric diagnosis, if you're pregnant, or if you're managing significant trauma. Wearable and health data is handled in line with the Australian Privacy Principles and is never published without written consent.

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