Bruce Protocol METs Calculator
Convert Bruce treadmill protocol time into METs and estimated VO₂ max — the standard clinical exercise stress test used in cardiology.
Reviewed October 7, 2026 Runs in your browser — inputs are never stored
Total time completed on the Bruce treadmill protocol
This tool provides general sports and fitness estimates for educational purposes only. It is not medical advice — consult a physician before starting or intensifying training, especially if you have a cardiovascular condition.
About the Bruce Protocol METs Calculator
The Bruce protocol calculator converts the time completed on the Bruce treadmill test into estimated VO₂ max and METs using the Foster (1984) equation. The test increases speed and incline every three minutes until exhaustion and is widely used in cardiology. It should only be performed under medical supervision.
How to use it
- 1Enter the total treadmill time in minutes (for example 10.5).
- 2Press Calculate to see VO₂ max, METs and fitness level.
Worked example
12 minutes gives a VO₂ max of 14.76 − 1.379 × 12 + 0.451 × 144 − 0.012 × 1,728 ≈ 42.4 ml/kg/min, or about 12.1 METs.
How it works
Formula
VO₂ max (ml/kg/min) = 14.76 − 1.379T + 0.451T² − 0.012T³, where T is the total treadmill time in minutes (Foster et al., 1984). METs = VO₂ max ÷ 3.5. The equation was derived for adults completing the standard Bruce protocol without holding the handrails.
Common use cases
- Understanding a stress-test report
- Tracking aerobic fitness
- Exercise physiology study
Frequently asked questions
A:A graded treadmill test where speed and incline increase every three minutes until exhaustion; total time predicts aerobic capacity.
A:One MET equals resting oxygen consumption, about 3.5 ml/kg/min. Ten METs means ten times resting energy expenditure.
A:Completing 10–12 minutes indicates good fitness for most adults; over 15 minutes is excellent.
A:No — maximal stress testing should be supervised by qualified medical staff.
A:Both estimate VO₂ max; Bruce is clinical and treadmill-based, Cooper is a 12-minute field run.
Reviewed for accuracy · Last updated October 7, 2026
Formulas follow published sports-science literature and official league definitions (Karvonen heart rate reserve, Cooper and Bruce protocols, MET compendium values, and standard baseball, cricket, and basketball statistics).
CalcWisee Editorial Team
Calculator development and formula review
CalcWisee is an independent site founded by Ayman. Every calculator is built from a published formula or official definition, tested against hand-worked examples before it goes live, and corrected promptly when a reader reports an issue to ayman@calcwisee.com.
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References & sources