GLOSSARY

How each calculator works.

A plain-language explanation of every term and calculator on Fitulse. These are wellness estimates using standard, commonly-cited formulas — not medical calculations or a diagnosis.

Body Composition

BMI Calculator: Body Mass Index (BMI) is a simple, widely used screening tool that estimates a person's total body fat category using their height and weight. While it does not measure body fat directly, it serves as an inexpensive and easy-to-perform method to screen for weight categories that may lead to health problems.
Body Fat Calculator: Estimate body fat percentage using the US Navy circumference method.
Ideal Weight Calculator: A population-average estimate of ideal body weight (Devine formula).
Waist-to-Height Ratio: A simple, strong predictor of cardiometabolic risk.

Nutrition

Calorie Calculator: Estimate your daily calorie target based on your goal.
Protein Intake Calculator: Estimate your daily protein target based on your goal.
Water Intake Calculator: Estimate your daily hydration target.
BMR Calculator: Estimate your Basal Metabolic Rate and maintenance calories.
Macro Calculator: Estimate a protein/carb/fat split matched to your goal.

Activity

Steps to Calories: Estimate calories burned from your daily step count.
Sitting Damage Calculator: Estimate the health risk of your daily sitting time.
Resting Heart Rate: See where your resting heart rate falls.

Recovery

Sleep Cycle Calculator: Find the best bedtime or wake time based on 90-minute sleep cycles.

Mental Health

Stress Level Test: A quick self-report screener for current stress level.
Burnout Risk Test: A quick self-report screener for burnout risk.

Weight Management

Weight Loss Timeline: Estimate how long it will take to reach your goal weight.
Weight Gain Plan: Estimate how long it will take to reach your goal weight.
Biological Age Calculator: Estimate how your lifestyle habits affect your biological age.

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