Free  ·  No Account  ·  Instant Results

Your birth year doesn't
determine your lifespan.

Answer 9 questions. See your biological age, what's costing you years — and exactly how much you can get back.

9
Inputs
8
Studies Referenced
~2 min
To Complete
Calculate My Biological Age ↓ 📰 Read the Research →
✓ No email required for results
✓ Scoring anchored to peer-reviewed research
✓ Not a medical device — an awareness tool
✓ No data sold or stored
The Process

How LongevityCalc works

We combine your lifestyle inputs with actuarial data and clinical research to show you exactly where your years are going.

STEP 01
Answer 9 questions

No blood tests, no wearables required. Just honest answers about how you actually live. Takes about 2 minutes.

STEP 02
See your biological age

We calculate how fast your body is actually aging vs your birth year — and rank the factors costing you the most time.

STEP 03
Recover your years

Every penalty has a recovery path. See how many years you can realistically get back, and exactly where to start.

The Calculator

Biological Age & Longevity Risk

Every input is tied to published longevity research. Hover the ? icons to learn why we ask.

Section 01 — Your Baseline
Who you are
Starting point for all actuarial calculations.
Section 02 — Recovery & Rest
Section 03 — Movement
Section 04 — Nutrition & Lifestyle
Section 05 — Stress & Mindset
1 — No control10 — Full control
5
Advanced — Heart Rate Recovery (HRR) Optional

For users with a heart rate monitor or smartwatch. After intense exercise, note your peak HR, rest completely for 60 seconds, then record again. A drop of <12 BPM may signal mitochondrial fatigue.

Your Results
Longevity Score
Biological Age
— estimated years
Projected Lifespan
— years (modeled)
Total Years at Risk
— vs optimal lifestyle
What's costing you years
Ranked by impact. Each penalty anchored to peer-reviewed research.
Years You Can Recover
—
If you improved your two biggest factors, here's what the research says you could realistically reclaim.
Recommended Protocols

Based on your results

Important Disclaimers

Medical Disclaimer: The information provided on LongevityCalc.com, including all calculator results, supplement recommendations, and health-related content, is intended solely for general educational and informational purposes. It does not constitute medical advice, diagnosis, or treatment. Results generated by this calculator are based on population-level actuarial and epidemiological data and are modeled estimates only — they are not a clinical assessment of your individual health status. Always consult a qualified physician, licensed healthcare provider, or registered dietitian before beginning any supplement regimen, making changes to your diet or exercise routine, or acting on any health-related information presented on this site. If you have or suspect you have a medical condition, or if you are pregnant, nursing, or taking prescription medications, seek professional medical guidance before using any supplement discussed here.

Affiliate Disclosure: LongevityCalc.com participates in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by linking to Amazon.com. Some links on this page are affiliate links, meaning we may earn a small commission if you purchase through them — at no additional cost to you. We only recommend products that have published peer-reviewed research supporting the biological mechanism they target. Our editorial recommendations are not influenced by commission rates or brand relationships.

Longevity Glossary

The science, explained

Key terms behind the calculator — for curious minds and search engines alike.

Biological Age
A measure of how old your body functions relative to your chronological age. Unlike birth year, biological age can be reversed through lifestyle changes.
Ref: Levine ME et al., Aging (Albany NY), 2018
Heart Rate Recovery (HRR)
The drop in heart rate within 60 seconds of stopping intense exercise. A drop under 12 BPM is clinically associated with increased mortality risk.
Ref: Cole CR et al., NEJM, 1999
Vagal Tone
The baseline activity level of the vagus nerve — the body's primary parasympathetic pathway. High vagal tone correlates with faster heart rate recovery, lower inflammation, and longer life.
Ref: Thayer JF et al., Annals of Behavioral Medicine, 2012
Mitochondrial Efficiency
How effectively mitochondria convert oxygen and nutrients into ATP (cellular energy). Declining efficiency accelerates nearly every hallmark of aging — from muscle loss to cognitive decline.
Ref: López-Otín C et al., Cell, 2023
VO₂ Max
Maximum oxygen uptake during intense exercise, in mL/kg/min. One of the strongest predictors of all-cause mortality — every 1 MET increase is associated with 13% lower mortality risk.
Ref: Mandsager K et al., JAMA Network Open, 2018
Waist-to-Height Ratio (WHtR)
A stronger predictor of cardiovascular mortality than BMI. Measures central visceral adiposity, which is metabolically active and inflammatory. General rule: keep waist under half your height.
Ref: Ashwell M et al., Nutrition Research Reviews, 2012
ATP Production
Adenosine triphosphate — the energy currency of every cell. Produced inside mitochondria. Declining ATP production underlies fatigue, poor recovery, cognitive fog, and accelerated aging.
Ref: Harman D et al., Annals of the NY Academy of Sciences, 1994
Allostatic Load
The cumulative biological wear-and-tear caused by chronic stress. High allostatic load accelerates telomere shortening, immune dysregulation, and cardiovascular disease — and is measurable and reversible.
Ref: McEwen BS, NEJM, 1998

© 2026 LongevityCalc.com — An awareness tool, not a medical device.

Results are modeled estimates. Consult a physician for medical decisions.