FitScaleHub

Health calculators for everyday wellness.

Find BMI, TDEE, macros, body fat, pregnancy, hydration, heart rate, and calorie tools from one clean mobile-friendly home.

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All calculators

Choose a health calculator

Pick from featured tools, or search the compact directory.

Body mass index

BMI Calculator

Calculate BMI from weight and height, then compare your score with standard adult BMI categories.

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Timeline planner

Healthy Weight Loss Calculator

Plan a safe weight loss timeline with BMR, TDEE, calorie deficit pace, target date, and safety checks.

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US Navy method

Body Fat Calculator

Estimate body fat percentage from circumference measurements with metric and imperial inputs.

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Devine & Robinson

Ideal Body Weight Calculator

Calculate ideal body weight with Devine and Robinson formulas plus optional target variance.

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Compact directory

All calculators

BMI CalculatorBody mass indexOpenHealthy Weight Loss CalculatorTimeline plannerOpenBody Fat CalculatorUS Navy methodOpenIdeal Body Weight CalculatorDevine & RobinsonOpenCalorie CalculatorDaily calorie intakeOpenMacro CalculatorProtein, carbs & fatsOpenCarb Intake CalculatorDaily carbohydrate needsOpenFat Intake CalculatorDaily fat needsOpenFiber Intake CalculatorDaily fiber needsOpenSodium Intake CalculatorDaily sodium estimateOpenSugar Intake CalculatorDaily added sugarOpenCaffeine Intake CalculatorCoffee, tea & energy drinksOpenPotassium Intake CalculatorDaily potassium estimateOpenProtein CalculatorDaily protein targetOpenTDEE CalculatorDaily energy burnOpenBMR CalculatorBasal metabolic rateOpenLean Body Mass CalculatorBoer formulaOpenWater Intake CalculatorDaily hydrationOpenPregnancy Weight Gain CalculatorCDC pregnancy guidanceOpenTarget Heart Rate CalculatorExercise zonesOpenPeriod & Ovulation CalculatorCycle predictionOpen

Instant BMI check

Calculate your Body Mass Index

Enter your weight in kilograms and height in centimeters. The calculator runs in your browser and shows your BMI category immediately.

Your BMI result will appear here.

The meter highlights underweight, normal, overweight, and obese ranges so you can interpret your score at a glance.