Body Metrics6 min read
How to Calculate BMI and What It Means
Learn how BMI is calculated, what BMI categories mean, and when BMI should be interpreted with caution.
Fitness guides
Practical fitness guides for better calculator results.
Learn how to understand BMI, BMR, TDEE, calories, macros and protein targets. These guides explain the numbers behind the calculators in simple language.
Calories7 min read
BMR vs TDEE: What Is the Difference?
Understand the difference between basal metabolic rate and total daily energy expenditure, and how both relate to calorie planning.
Calories8 min read
How Many Calories Should I Eat Per Day?
A practical guide to maintenance calories, calorie deficits, calorie surpluses, and how to use calorie estimates wisely.
Nutrition8 min read
Macro Split for Fat Loss, Maintenance and Muscle Gain
Learn how protein, carbohydrates and fat can be split across different fitness goals and why macro targets are estimates.
Nutrition7 min read
How Much Protein Do You Need Per Day?
Understand daily protein needs, protein per meal, and how activity level and goals can affect protein targets.
Nutrition7 min read
How Much Water Should You Drink Per Day?
Learn what affects daily water needs, how exercise and climate change hydration targets, and how to use water intake estimates wisely.
Body Metrics8 min read
How to Estimate Body Fat Percentage
Understand what body fat percentage means, how measurement-based estimates work, and why body fat results should be interpreted carefully.
Body Metrics7 min read
Ideal Weight Formulas Explained
Learn how ideal weight formulas work, why different formulas give different results, and how to interpret estimated healthy weight ranges.
Training7 min read
One Rep Max Guide: Estimate Strength Safely
Learn what one rep max means, how 1RM formulas estimate strength, and how training percentages can be used without testing a true max.
Calories8 min read
Weight Loss Timeline Explained
Understand how calorie deficits relate to estimated weight loss timelines and why real progress can differ from calculator predictions.