All Fitness & Nutrition Calculators

By [AUTHOR NAME] · · Method & sources

A suite of health metrics, calorie targets, macronutrient tools, and Indian food calculators, with each page stating the formulas, stored servings, and known limits it uses.

Why Use Science-Based Fitness Calculators?

Most people rely on generic calorie rules — like "eat 2,000 calories a day" — that ignore individual differences in metabolism, body composition, and activity level. These one-size-fits-all numbers can lead to under-eating (stalling muscle growth) or over-eating (preventing fat loss) without you even realizing it.

Every calculator on FitTrackPro uses peer-reviewed clinical formulas — not arbitrary estimates. The BMI and Ideal Weight calculators apply WHO and ICMR Asian-specific cutoffs that account for the higher metabolic risk South Asian populations face at lower body weights. The BMR and TDEE calculators use the Mifflin-St Jeor equation, which clinical research has shown to be the most accurate resting metabolic rate predictor for healthy adults. Our Indian food tools use stored FitTrackPro entries. The database does not retain an IFCT citation for every food row; see the methodology page for source limits and portion assumptions.

All calculations run 100% in your browser — your height, weight, age, and dietary choices never leave your device. No account required, no data stored on our servers, completely free.

Body Composition & Target Weight

Energy Expenditure & Daily Metabolism

Calorie Deficits & Macro Ratios

Indian Diet & Meal Calculators

How to Use Our Calculators — Step by Step

Follow this recommended sequence for the most accurate and actionable results.

1

Find Your Baseline

Start with the BMR Calculator to find how many calories your body burns at complete rest — this is your metabolic floor.

2

Add Activity

Use the TDEE Calculator to multiply your BMR by your real weekly activity level and find your total daily energy expenditure.

3

Set Your Goal

Choose the Calorie Deficit Calculator for fat loss or the Macro Calculator to split your target into protein, carbs, and fats.

4

Track Your Meals

Use the Indian Food Counter or the Roti/Dal Calculators to track real meals against your macro targets throughout the day.

Frequently Asked Questions

Everything you need to know about FitTrackPro calculators and tools.

Which fitness calculator should I start with first? ↓
We recommend starting with the BMR Calculator to find your resting burn, followed by the TDEE Calculator to account for daily activity. From there, you can choose the Calorie Deficit Calculator for fat loss or the Daily Macro Calculator to break your target into protein, carbs, and fats.
Are all calculators on FitTrackPro completely free? ↓
Yes! 100% of our calculators, meal tools, and articles are completely free to use. There are no subscriptions, paywalls, or hidden account creation requirements.
How is my personal health data protected? ↓
All calculations are executed 100% client-side in your browser JavaScript. Your height, weight, age, and nutritional choices are never sent to external servers or sold to advertisers.
Which scientific formulas are used across the calculators? ↓
Formula references are stated by tool: Mifflin-St Jeor for BMR, WHO/ICMR Asian Cutoffs for BMI, U.S. Navy Anthropometric Method for body fat %, and Devine & Robinson formulas for ideal weight. Indian food tools use stored FitTrackPro entries without item-level source citations.