Ever wondered how old your body really is?
Our free Body Age Calculator estimates your body’s “real age” based on lifestyle, fitness, and wellness factors — including BMI, heart rate, sleep, and exercise.
It’s fast, simple, and helps you understand your overall health score.
Body Age Calculator
This tool estimates a “body age” from fitness and lifestyle inputs. It’s for education only and not medical advice.
How this is calculated
We compute a 0–100 wellness score from:
- BMI (target ≈ 22): higher deviation reduces score
- Waist-to-Height ratio (target ≈ 0.50)
- Resting Heart Rate (target ≈ 60 bpm)
- Weekly exercise (target ≈ 150 minutes)
- Sleep (target ≈ 7–9 hours)
- Alcohol (target ≤ 7 drinks/week)
- Smoking (penalty if "Yes")
The body age is estimated as: BodyAge = Age + (50 − Score)/4, capped to reasonable bounds. It’s an educational estimate — not a clinical measurement.
Breakdown
Body Age Calculator
Find out how your habits affect your body age.
Enter your age, height, weight, waist, exercise, sleep, and lifestyle details — and instantly see your body age and wellness score (0–100).
⚙️ How It Works
The calculator uses a science-inspired wellness score model that considers:
- BMI – how close your weight is to the ideal range
- Waist-to-Height Ratio – a key measure of fitness
- Resting Heart Rate – an indicator of cardiovascular health
- Exercise – minutes per week of physical activity
- Sleep – quality rest between 7–9 hours per night
- Alcohol & Smoking – penalties for unhealthy habits
Your Body Age is then estimated as:
Body Age = Actual Age + (50 − Wellness Score) / 4
💡 Why Use This Calculator
✔ Simple and instant — no signup required
✔ Combines lifestyle and fitness factors
✔ Works on any device (mobile or desktop)
✔ Based on real health metrics (not random numbers)
✔ Great for fitness blogs, gyms, and wellness pages
🧠 Example Calculation
Age: 30 years
BMI: 24
Resting HR: 65 bpm
Exercise: 150 min/week
Sleep: 7.5 hrs
Non-smoker, 2 drinks/week
→ Wellness Score = 88 / 100
→ Estimated Body Age = 28 years
(Younger than your actual age!)
❓ FAQ
Q: What does “body age” mean?
A: It’s an estimate of your biological fitness level compared to your real age.
Q: Is this medical advice?
A: No — it’s for educational and lifestyle awareness only.
Q: How accurate is it?
A: It uses evidence-based formulas but should not replace medical assessments.
Q: Can I improve my body age?
A: Yes! Improve sleep, stay active, and maintain a healthy BMI to lower your body age.