The Energy Age calculator is a free, 60-second wellness check that turns five everyday habit answers into a 0–100 Vitality Score and an Energy Age compared to your real age. No sign-up, no email required to see your result, and — importantly — it’s scored entirely in your browser.
It’s general wellness education for adults (18+), not medical advice.
What it asks
Five quick, non-clinical questions plus your age:
- Nicotine or vaping — none, occasionally, or daily
- Alcohol — rarely, a few days a week, or most days
- Sleep — under 5, 5–6, 7–8, or 9+ hours
- Movement — mostly sitting, 1–2 days, or active 3+ days a week
- Stress — low, moderate, or high
That’s it. Each answer carries a small point weight; the calculator subtracts them from 100 to produce your score, then maps it to an Energy Age. It also names the single habit costing you the most and how many points a realistic change could recover.
Why it’s private by design
Most “calculators” send your answers to a server. This one doesn’t. The scoring math runs on your device, so your habit answers never leave your browser. The site logs only anonymous usage (a page view, that the quiz was completed, a button click) with a random browser ID and a salted, one-way hashed IP — used to measure interest and filter bots, never to identify you. Your email is stored only if you choose to join the early-access list. The full details are in the privacy policy.
How accurate is it?
It’s an honest estimate of habit direction, not a clinical measurement. The weights come from habits that public-health bodies consistently tie to energy and function — the CDC on sleep, HHS on activity, and the NIH on alcohol and sleep, among others. It can reliably point at your biggest drag; it can’t replace a clinician.
A 60-second walkthrough
- Confirm you’re 18+.
- Enter your age and answer the five habit questions.
- Get your Vitality Score, your Energy Age, your biggest drag, and the points a realistic change could recover.
- Optionally share your result card — only the displayed numbers are encoded in the link, never your raw answers.
Try it now: Open the free Energy Age calculator →
This article is general wellness education for adults (18+). It is not medical advice and is not intended to diagnose, treat, cure, or prevent any disease.