VO₂max from Resting Heart Rate
The zero-equipment Uth–Sørensen estimate: HRmax ÷ HRrest × 15.3 — with honest error bars.
The ratio works because both numbers reflect stroke volume — a heart pumping more per beat idles slower and revs higher relative to rest. Derived in trained Danish men, so accuracy degrades away from that population (±5–10%); treat it as a tracking metric where a falling RHR shows up as rising estimated fitness.
Formula
For general information only — not medical or training advice. Estimates vary between individuals; consult a qualified professional before changing your exercise or nutrition routine.
The zero-equipment Uth–Sørensen estimate: HRmax ÷ HRrest × 15.3 — with honest error bars. The VO₂max from Resting Heart Rate is a free, private vo2max resting heart rate tool — every result computes instantly in your browser with no sign-up and no data upload.
About VO₂max from Resting Heart Rate
The ratio works because both numbers reflect stroke volume — a heart pumping more per beat idles slower and revs higher relative to rest. It applies VO₂max ≈ 15.3 × (HRmax ÷ HRrest). Use the VO₂max from Resting Heart Rate to get an instant, clearly-explained result with the working shown step by step — free, private and with the source method cited.
How to use VO₂max from Resting Heart Rate
- 1Enter your details in the VO₂max from Resting Heart Rate input fields above.
- 2The result updates instantly with the working and reference bands shown.
- 3Adjust any value to explore how it changes the outcome — it's free and unlimited.
Why use VO₂max from Resting Heart Rate?
- ✓Instant vo2max resting heart rate result that recomputes as you type — no waiting, no page reloads
- ✓100% client-side: your health data never leaves your browser
- ✓Shows the actual formula and your numbers substituted in, so you can see exactly how the result is reached
- ✓Based on published, citable sources (Uth N et al., Eur J Appl Physiol 2004;91:111-5)
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the VO₂max from Resting Heart Rate work?+
The ratio works because both numbers reflect stroke volume — a heart pumping more per beat idles slower and revs higher relative to rest. The calculation uses the formula: VO₂max ≈ 15.3 × (HRmax ÷ HRrest). Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the VO₂max from Resting Heart Rate accurate, and what is it based on?+
The method is traceable to authoritative sources: Uth N et al., Eur J Appl Physiol 2004;91:111-5. Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the VO₂max from Resting Heart Rate free and private?+
Yes. It's completely free with no sign-up, and all computation happens locally in your browser, so none of your health data ever leaves your device.
Can I use this for medical decisions?+
This tool is for general fitness information only, not medical or training advice. Consult a professional before changing your routine.
What can I use the VO₂max from Resting Heart Rate for?+
It's commonly used for vo2max resting heart rate, vo2max without test, uth sorensen. The zero-equipment Uth–Sørensen estimate: HRmax ÷ HRrest × 15.3 — with honest error bars.
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