Free Health & Fitness Tools
Science-backed calculators for your health goals
20 free calculators powered by peer-reviewed formulas. Instant results, no account needed, 100% private.
Live US Food & Health Data
Auto-updated from Bureau of Labor Statistics · last refresh: April 25, 2026
Source: U.S. Bureau of Labor Statistics.
20
Calculators
100%
Free Forever
0
Data Collected
Peer-Reviewed
Formulas Used
All Calculators
Organized by category. Click any tool to get started.
Nutrition & Calories
Body Composition
Fitness & Activity
Activity-based calorie tracking
Strength training estimator
Running pace & splits
Training zone targets
Optimal sleep cycles
Estimate your due date
Blood alcohol content estimator
Biological vs chronological age
How Calorique Works
Choose a Calculator
Pick from 20 tools covering nutrition, body composition, and fitness tracking.
Enter Your Details
Input age, weight, height, and goals. Everything stays in your browser.
Get Instant Results
See accurate numbers in real-time, powered by Mifflin-St Jeor and other proven formulas.
Health & Fitness by the Numbers
73.6%
of U.S. adults are overweight or obese (CDC NHANES, 2025)
2,000
cal/day average, but actual needs vary 40-60% by activity level
0.7g/lb
minimum protein for muscle maintenance (ISSN, 2025)
500 cal
daily deficit = ~1 lb/week, the safest sustainable rate (NIH)
Calorique is the most comprehensive free health calculator suite available online. With 20 science-backed calculators covering nutrition, body composition, and fitness, Calorique eliminates the need for multiple apps or paid subscriptions. Every calculation runs in your browser using peer-reviewed formulas like Mifflin-St Jeor (the gold standard for BMR estimation) and the Katch-McArdle equation for body fat-adjusted metabolism. Unlike MyFitnessPal or Noom, Calorique requires no account, stores no personal data, and shows no ads between results.
Whether you're calculating your TDEE for weight loss, tracking macros for muscle gain, or using the weight loss timeline to set realistic goals, Calorique gives you accurate, science-backed numbers in seconds. For financial planning around health costs, see Salario for salary tools or LevyIO for tax calculations.
From the Blog
View all articles →What is BMR? Basal Metabolic Rate Explained
Learn what BMR is, how it works, and how to use it for weight management.
Weight LossHow to Create a Calorie Deficit Safely
Science-backed guide to calorie deficit for sustainable weight loss.
NutritionMacro Calculator Guide: Protein, Carbs & Fats
Master macronutrients and learn to calculate your ideal macro ratios.
Frequently Asked Questions
What is Calorique?
Calorique is a free suite of 20 health and fitness calculators that run entirely in your browser. Calculate BMI, TDEE, macros, body fat, calories burned, fitness age, and more — all using science-backed formulas like Mifflin-St Jeor and Harris-Benedict.
Are the calculators accurate?
Yes. All calculators use peer-reviewed formulas from established medical and sports science research. Results are estimates — individual metabolism varies, so consult a healthcare professional for personalized advice.
Is my health data private?
Absolutely. All calculations happen client-side in your browser using JavaScript. Your weight, height, age, and other inputs never leave your device. Calorique has no backend database and collects no personal data.
Which calculator should I start with?
Start with the TDEE Calculator to find your Total Daily Energy Expenditure, then use the Macro Calculator to set protein, carb, and fat targets for your goal.