Free Biological Age Calculator & Healthspan Calculator
Estimate your biological age, healthspan, and longevity score in 10 minutes. Answer 31 science-backed questions to get a free longevity test result: your 0-100 healthspan score, biological age estimate, five-dimension risk profile, and personalized action plan. Backed by 37+ peer-reviewed studies.
Based on 37 studies from NEJM, The Lancet, Science, and more — covering 20+ million participants.
One Free Longevity Calculator for Three High-Intent Questions
Most people search for biological age, longevity, or healthspan separately. This assessment connects all three so you can see what is driving your score and what to improve first.
- Biological age calculator — Estimate whether your habits and health markers point to faster or slower aging than your calendar age.
- Free longevity test — Get a 0-100 longevity score across metabolic health, lifestyle, sleep, mind and social connection, and prevention.
- Healthspan calculator — Focus on years lived with energy, mobility, cognition, and independence, not just total lifespan.
How It Works
- 1. Answer 31 Questions — Quick, clear questions covering five key health dimensions — no medical jargon.
- 2. Get Your Score — Receive a 0–100 longevity score, a biological age estimate, and a radar chart of your strengths.
- 3. Act on Your Roadmap — Get prioritized, science-backed action items — what to do today, this month, and ongoing.
5 Dimensions of Longevity
- Metabolic Baseline — Your body's foundation. Cracks here undermine everything above.
- Lifestyle — Diet, exercise, and habits — the highest-leverage factors for longevity.
- Sleep — Your body's maintenance window. Skip it, and waste accumulates.
- Mind & Social — 6 of 8 Blue Zone longevity traits are psychological or social.
- Prevention — Early detection is the highest-ROI longevity investment.
What You'll Get
- Longevity Score (0–100) — A single number that captures how well your habits, markers, and lifestyle support a long life.
- Biological Age Estimate — See whether your body is aging faster or slower than your calendar age.
- Weakness Diagnosis — Pinpoint the exact dimensions dragging your score down — stop guessing, start fixing.
- Personalized Action Plan — Tiered recommendations (immediate / monthly / ongoing) so you know where to start.
Frequently Asked Questions
What is a biological age calculator?
A biological age calculator estimates whether your body appears to be aging faster or slower than your calendar age. This tool uses your 31-question longevity assessment, five health dimensions, and total score to estimate biological age for educational purposes.
Is this free longevity test actually free?
Yes. The longevity test is free, takes about 10 minutes, and does not require an account. You receive a 0-100 score, a biological age estimate, a five-dimension radar chart, and a prioritized action plan.
What does a healthspan calculator measure?
A healthspan calculator focuses on the years you are likely to live with good energy, mobility, cognition, and independence. This assessment emphasizes healthspan rather than only total lifespan.
How is biological age calculated?
Your biological age is estimated by comparing your total longevity score against your actual age. A higher score suggests your body is aging slower than your calendar age, while a lower score may indicate faster biological aging.
What science is this based on?
Every question and recommendation is grounded in peer-reviewed research from journals like NEJM, The Lancet, Science, JAMA, and BMJ, covering 20+ million participants.
Is this a medical diagnosis?
No. This is an educational self-assessment tool. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your doctor for medical decisions.
Is my data safe?
Yes. We collect zero personal assessment data. All calculations happen locally in your browser. Nothing from your answers is sent to any server.
No personal data collected. Everything runs in your browser.