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Health & Lifestyle Tools

Collection of free & secure health & lifestyle tools. Your data stays private inside your browser — zero data saved on servers.

9 Free Tools · 100% Client-Side Processing

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Calculate your Basal Metabolic Rate and discover how many calories your body burns at rest.

Calculate your daily calorie needs (TDEE) based on your age, weight, height, and activity level.

Estimate your blood alcohol content (BAC) based on drinks consumed, weight, and time.

Estimate your body fat percentage using body measurements — no gym equipment needed.

Find your ideal weight range based on your height and gender using multiple formulas.

Find your most fertile days and ovulation window based on your menstrual cycle.

Calculate your estimated pregnancy due date (EDD) from your last menstrual period.

Find the best time to wake up or go to sleep based on 90-minute REM sleep cycles.

Find out exactly how much water you should drink per day based on your weight and activity.