Free tools
Fitness & longevity tools
Simple tools to understand your body better. Every calculator and guide here is free to explore.
Body composition
BMI Calculator
Find out if your weight is in a healthy range for your height.
Body Fat % Calculator
Estimate your body fat percentage using simple body measurements.
Ideal Body Weight
See what different formulas suggest as a healthy weight for your height.
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Waist-to-Hip Ratio
Check if your body shape puts you at higher health risk.
Lean Body Mass Calculator
Find out how much of your weight is muscle, bone, and organs.
Body Type Calculator
Discover your body type — ectomorph, mesomorph, or endomorph.
Nutrition
TDEE Calculator
Find out how many calories your body burns each day.
Macro Calculator
Get a protein, carbs, and fat split tailored to your goal.
Calorie Deficit Calculator
Find out how many calories to eat each day to reach your goal weight.
Protein Calculator
Find out how much protein you need each day for your goal.
Calories Burned Calculator
See how many calories you burn during any activity.
Intermittent Fasting Calculator
Plan your eating and fasting windows based on your schedule.
Cardio
Longevity
VO2 Max Estimator
Estimate how well your body uses oxygen during exercise.
Biological Age Estimator
See if your body is aging faster or slower than your real age.
Water Intake Calculator
Find out how much water you should drink each day.
Sleep Calculator
Find the best time to sleep or wake up based on sleep cycles.
Life Expectancy Estimator
Get a personalized estimate of your life expectancy based on lifestyle.
Fitness Age Calculator
See how old your body is based on your fitness level.
Biomarkers
Longevity biomarkers
Browse beginner-friendly explanations of key blood markers, what optimal ranges look like, and why they matter.
Total Cholesterol
A starting-point measure of all the cholesterol in your blood. It's useful as a baseline, but the breakdown matters more.
HbA1c
Your blood sugar average over the past 2–3 months. One of the most important metabolic markers for longevity.
hs-CRP
A sensitive marker of inflammation in your body. Chronic low-grade inflammation is linked to nearly every age-related disease.
TSH (Thyroid)
The main marker of thyroid function. Your thyroid controls your metabolism, energy, mood, and weight — and problems are very common in women.
VO2 Max
How well your body uses oxygen during exercise. Considered the single best predictor of how long you'll live.
Vitamin D
One of the most common deficiencies worldwide. Vitamin D supports your bones, immune system, mood, and muscle strength.
Get a personalized plan built around your numbers
Talala uses data like this to build a 12-week fitness plan tailored to your body, your goals, and your life.