US Navy Body Fat Method: Tape Measure Accuracy
Estimate body fat with a tape measure: the published Navy formulas, worked examples for both sexes, and the technique that makes the number trustworthy.
Health & Fitness Guides
How BMI, BMR, TDEE, body fat and running pace are actually calculated, what the formulas can and cannot tell you, and where the honest limits are. Paired with free in-browser health calculators.
Ideal Weight Formulas Compared (Devine, Robinson...)
Four formulas, four different ideals up to 5.8 kg apart, and the surprising history: the most famous one was invented for drug dosing, not health.
Pace Calculator Guide: Race Times and Training Zones
From a 25-minute 5K to a marathon plan: pace math, Riegel predictions, the training paces that build speed, and why the second half should be faster.
Calorie Deficit: How Big Is Safe and Effective
How to size a calorie deficit: the calories-to-fat exchange rate, small vs moderate vs aggressive, and the floors that keep a cut healthy.
TDEE Explained: Find Your Real Daily Burn
The activity multiplier table with honest definitions, the NEAT factor everyone forgets, and the two-week audit that beats every formula.
BMR, TDEE and Calories: How Your Body Burns Energy
The three numbers behind every diet: BMR, TDEE, and the calorie balance, worked end to end with real figures and the common errors that bend them.
BMI Explained: What the Number Means and What It Misses
BMI, short for body mass index, is a single number worked out from a person’s height and weight. It is one of the most widely used figures in health screening, and also one of the most widely misunderstood. The primary sources on what the figure can and cannot say are the CDC’s BMI overview and … Read more