Sitting Time Calculator
Tally your real seated hours against the cohort-study risk bands — and the offset dose of exercise.
Ekelund's million-person meta-analysis delivered the optimistic headline: 60–75 minutes of daily moderate activity eliminated the mortality association of even 8+ sitting hours — sitting isn't 'the new smoking', inactivity is. Breaks matter independently: interrupting every 30 min with 2–3 minutes of movement measurably improves glucose handling.
Formula
For general information only — not medical advice, a diagnosis or a treatment plan. Consult a qualified healthcare professional before making health, diet, medication or exercise decisions.
Tally your real seated hours against the cohort-study risk bands — and the offset dose of exercise. The Sitting Time Calculator is a free, private sitting time tool — every result computes instantly in your browser with no sign-up and no data upload.
About Sitting Time Calculator
Ekelund's million-person meta-analysis delivered the optimistic headline: 60–75 minutes of daily moderate activity eliminated the mortality association of even 8+ sitting hours — sitting isn't 'the new smoking', inactivity is. It applies total sitting vs the 60–75 min/day activity offset found in pooled cohorts. Use the Sitting Time Calculator 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 Sitting Time Calculator
- 1Enter your details in the Sitting Time Calculator 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 Sitting Time Calculator?
- ✓Instant sitting time 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 (Ekelund U et al., Lancet 2016 — sitting, activity and mortality)
- ✓Free forever with no sign-up, account or app install
Frequently asked questions
How does the Sitting Time Calculator work?+
Ekelund's million-person meta-analysis delivered the optimistic headline: 60–75 minutes of daily moderate activity eliminated the mortality association of even 8+ sitting hours — sitting isn't 'the new smoking', inactivity is. The calculation uses the formula: total sitting vs the 60–75 min/day activity offset found in pooled cohorts. Everything runs instantly in your browser as you type — your inputs are never uploaded.
Is the Sitting Time Calculator accurate, and what is it based on?+
The method is traceable to authoritative sources, including Ekelund U et al., Lancet 2016 — sitting, activity and mortality; Dunstan DW et al., Diabetes Care 2012 — breaking up sitting. Results are estimates — individual variation always applies, so treat the output as a well-grounded starting point.
Is the Sitting Time Calculator 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 information only and is not medical advice. Always consult a qualified healthcare professional before making health decisions.
What can I use the Sitting Time Calculator for?+
It's commonly used for sitting time, sedentary hours, sitting too much. Tally your real seated hours against the cohort-study risk bands — and the offset dose of exercise.
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