The UtilityApps Blog
Deep dives, calculators, and practical tutorials for the tools you actually use. Free, no signup, written by people who use them daily.
DEV-MID · rectangleHow much water you actually need per day — where the 8-glasses rule came from, what changes the number, and how to calculate your own target.
The healthy BMI range for women explained — what the numbers mean, how BMI shifts with age, its limitations, and when to look beyond BMI for health.
How to calculate daily calorie needs for weight loss — TDEE, the calorie deficit math, protein targets and the common mistakes that stall progress.
What your BMI really says about your health — the history of the formula, why it fails athletes, and better measures like body fat and waist-to-hip ratio.
BMI is the most-used and most-criticized health metric. We dug through the research to find when BMI is reliable, when it lies, and what to use instead.