Guides

Guides

The ideas behind the calculators, explained without the jargon, and what to do with the numbers once you have them. Each guide lists its sources and the date it was last checked.

Apps and tracking

Best Calorie Tracking Apps in 2026: 9 Apps Ranked for Hitting Your TDEE TargetYou have a daily number from your…Updated October 28, 2026How to Count Calories: A Practical Guide for Your First MonthCounting calories is a skill, not a lifelong…Updated October 28, 2026

Energy and calories

BMR vs TDEE: The Difference, and Which Number to Eat ToBMR is what you burn lying still; TDEE is what you burn living your…Updated October 28, 2026How to Lose Weight Using Your TDEE: Setting a Deficit You Can KeepYour TDEE tells you where maintenance…Updated October 28, 2026What Is TDEE? Total Daily Energy Expenditure, ExplainedTDEE is every calorie your body uses in a…Updated October 28, 2026

Body composition

How to Measure Body Fat Percentage at Home: 5 Methods ComparedTape measure, calipers, smart scale, 3D body scan or a formula from BMI: what each method…Updated October 28, 2026

Training

What Are METs? How Calories for Any Activity Are Worked OutMET values are how scientists, fitness trackers and calculators turn an activity into…Updated October 28, 2026One-Rep Max Formulas Compared: Epley, Brzycki and LombardiYou do not need to max out to know your…Updated October 28, 2026