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Tools for a healthier you

Health & Fitness Calculators

Calculate your BMI, daily calorie needs, macros, body fat percentage, and track your pregnancy. Free and completely private.

Most popular

BMI Calculator
Free • Instant
BMR Calculator
Free • Instant
Calorie Calculator
Free • Instant
Pregnancy Due Date Calculator
Free • Instant
Macro Calculator
Free • Instant

All health & fitness calculators (19/19)

About health & fitness calculators

Whether you are trying to lose weight, build muscle, or track a healthy pregnancy, our health and fitness calculators give you personalized estimates based on standard medical formulas. We provide tools like the BMI and BMR calculators to establish your baseline health metrics, macro and calorie calculators to plan your diet, and pregnancy calculators to track due dates and healthy weight gain. Remember, these tools are for educational purposes and should not replace professional medical advice.

Why use our health & fitness calculators?

Standard formulas

Uses medically established formulas like Mifflin-St Jeor for BMR.

Metric & Imperial

Supports pounds, kilograms, inches, and centimeters seamlessly.

Personalized

Tailors results to your age, gender, height, and activity level.

100% Private

Your health data never leaves your device.

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Frequently asked questions

Is BMI an accurate measure of health?▾

BMI is a useful population screening tool but doesn't account for muscle mass or body composition. We recommend using it alongside body fat percentage.

What is BMR?▾

Basal Metabolic Rate is the number of calories your body burns at rest to maintain basic life functions.

Are the pregnancy tools medical advice?▾

No, they are simply mathematical estimates based on average cycles. Always consult your OB-GYN.

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CalculatorCalc.com's sole focus is to provide fast, lightweight, comprehensive, convenient, 100% free online calculators in multiple categories that helps you with your day to day calculations with ease. Currently, we have around 100+ calculators to help you "do the math" quickly in areas such as finance, conversions, fitness, health, math, date & time, and others, and we are still developing more calculators which would be keep on adding over a period of time.

Our goal is to become the one-stop solution, go-to site for users who are our part of family who need to make quick calculations. Additionally, we believe the internet should be a source of free information and that's why we built this website and products what we offer absolutely for free. Therefore, all of our tools and services are completely 100% free all time, any time, with no registration required.

Our team comes from the background of software engineers and software developers, we specifically hard coded and developed each of the calculators individually in detail and put each one through strict, comprehensive testing. These calculators and tools are developed with precise fields that are exactly needed for calculations with right set of rules and right set of formulas making them unique in the internet.

But this doesn't mean that we are perfect and everything is up to the mark as sometimes there could be bugs when you develop any software. So, we are always open for feedback, anytime. Please inform us if you notice even the slightest error – your input is extremely valuable to us. You can reach out to us at contact@calculatorcalc.com While most calculators on CalculatorCalc.com are designed to be universally applicable for worldwide usage, some are for specific countries only. For example, the Income Tax Calculator is for United States residents only, and some could be for other regions.