Weight Loss Timeline: How Long Will It Actually Take? The Math
Calculate a realistic weight loss timeline based on your deficit, starting weight, and metabolism. Includes phase-based projections and why fat loss slows over time.
Health
17 articles in this category
How Many Calories Does Walking Actually Burn? The Complete Math
Calculate the exact calories burned walking by speed, weight, distance, and terrain. Comparison tables, formulas, and tips to maximize calorie burn from walking.
Sleep Debt: How to Calculate What You Owe and Why It Matters
Learn how sleep debt accumulates, its effects on health and performance, how to calculate your personal sleep debt, and evidence-based strategies to pay it back.
How Much Water Do You Really Need? The Science-Based Formula
Cut through hydration myths with evidence-based water intake formulas. Covers how to calculate your needs by weight, activity level, and climate, plus signs of over and underhydration.
Pregnancy Weight Gain: How Much Is Healthy and How to Track It
Evidence-based pregnancy weight gain guidelines by pre-pregnancy BMI. Covers recommended ranges, trimester breakdowns, where the weight goes, and when to be concerned.
VO2 Max: How to Estimate Your Cardiovascular Fitness Level
Learn what VO2 max measures, how to estimate yours without lab testing, what the numbers mean by age and sex, and how to improve your aerobic capacity.
How to Calculate Your One-Rep Max (1RM) Without Actually Maxing Out
Learn to estimate your 1RM using proven formulas. Covers Epley, Brzycki, and Lombardi methods, when to test vs estimate, and how to use 1RM for programming.
Waist-to-Hip Ratio: Why Fat Distribution Matters More Than One Number Alone
A practical waist-to-hip ratio guide: how to measure it, what WHO cutoffs are commonly used, and why body-fat distribution adds context that BMI alone cannot provide.
Basal Metabolic Rate (BMR) Explained: Your Body's Calorie Floor
Understand BMR — the calories your body burns at complete rest. Covers Mifflin-St Jeor and Harris-Benedict formulas, factors that affect BMR, and how to use it for nutrition planning.
How Much Water Do You Really Need? A Hydration Guide Based on Science
Discover how to calculate your daily water intake based on body weight, activity level, and climate. Evidence-based hydration formulas and practical tips inside.
How Much Protein Do You Actually Need? The Science-Based Formula
Cut through protein intake confusion with evidence-based recommendations for muscle gain, fat loss, and maintenance. Includes formulas, food sources, and timing tips.
Body Fat Percentage: Methods, Accuracy, and What the Numbers Mean
Compare body fat measurement methods — from navy method to DEXA scans. Learn healthy body fat ranges by age and sex, and how to track progress accurately.
Heart Rate Zones Explained: Train Smarter, Not Just Harder
Learn the 5 heart rate training zones, how to calculate your max heart rate, and which zone to train in for fat burning, endurance, and peak performance.
Calorie Deficit Math: Why the Equation Is Real but the Timeline Is Not Perfect
A practical guide to calorie-deficit math: what energy balance means, why weight change is not perfectly linear, and how to use deficit estimates without turning them into rigid promises.
Macro Counting for Beginners: What Protein, Carbs, and Fat Actually Tell You
A practical introduction to macro counting: what protein, carbohydrate, and fat represent, how food labels show them, and how to use macro tracking as a planning tool rather than a rigid rulebook.
TDEE Explained: How to Calculate Your Total Daily Energy Expenditure
Learn what TDEE is, how it's calculated using BMR and activity multipliers, and why it's the foundation for any weight loss, gain, or maintenance plan.
BMI Explained: What It Measures, What It Misses, and How to Use It
A practical guide to BMI for adults: the formula, CDC weight categories, common limitations, and the extra measurements that make BMI more useful in real life.