Health & Vitality Scientific Catalog
Go beyond the basics. Our health tools help you optimize vitamin intake, understand alcohol metabolism, and time your medication for peak efficacy.
Calculators in this section
21 tools
| Icon | Calculator | What it measures | Topic |
|---|---|---|---|
 | Vitamin D Calculator | Estimate your sun exposure needs to reach optimal Vitamin D levels based on skin type and latitude. | Vitamin D |
 | Magnesium Calculator — Daily Requirement for Sleep and Recovery | Check your Magnesium intake and find your daily requirement to reduce anxiety and improve sleep. | Magnesium |
 | Iron Needs Calculator | Especially important for female athletes. Calculate your daily iron requirement to prevent anemia. | Iron |
 | Electrolyte Loss Calculator — Sodium, Potassium and Magnesium in Sweat | Estimate how much Sodium, Potassium, and Magnesium you lose during intense sweating. | Electrolytes |
 | Alcohol Metabolism Calculator | Predict how long until you are sober. "Zero to Hero" timeline based on drinks consumed. | Alcohol |
 | Alcohol Calorie Calculator — What a Night Out Actually Costs | See the damage. Convert your night out into "Slices of Pizza" or "Miles to Run". | Alcohol |
 | Caffeine Half-Life Calculator | Find out when your coffee leaves your system so you can sleep. | Caffeine |
 | Melatonin Timing Calculator | Calculate the optimal time to take Melatonin for jet lag or sleep onset. | Melatonin |
 | Sleep Cycle Calculator — Best Bedtime and Wake Time by 90-Minute Cycles | Find your optimal bedtime or wake-up time based on 90-minute REM sleep cycles. | Sleep Cycle |
 | Pregnancy Nutrient Needs | Calculate your trimester-specific nutrient requirements (Folate, Iron, Calcium) for a healthy baby. | Pregnancy |
| Caffeine Metabolism Tracker | Scientific analysis of how your body clears caffeine based on genetics, smoking, and medication. | Caffeine | |
| Pediatric Growth & Dosage | Comprehensive tracker for child caloric needs, high-protein growth targets, and safe medication dosages. | Pediatric | |
| Pet Nutritional Optimizer | Calculate daily calories and water intake for cats and dogs based on age and activity. | Pet Health | |
| Heat Index Calculator — Plus Wind Chill and UV Risk for Outdoor Training | Calculate Heat Index, Wind Chill, and UV safety for your next adventure. | Outdoor Safety | |
| Chronic Disease Nutrition Guide | Scientific dietary adjustments for common conditions like Diabetes, Hypertension, and CKD. | Clinical Nutrition | |
| TDEE Calculator — Back-Calculated From Your Own Intake and Weight | Find your real TDEE from actual intake and weight data. No estimation formulas — back-calculated from your own body's response. | TDEE | |
| Sleep Performance Calculator for Athletes | Calculate your optimal sleep duration by sport, training load, and competition schedule. Evidence-based recommendations from NCAA and military performance research. | Sleep |
| Menopause Nutrition Calculator — Perimenopause, Menopause & Post-Menopause | Calculate calorie and macro targets adjusted for your menopause stage. Three-stage formula for perimenopause, menopause, and post-menopause with bone health micronutrients. | Menopause |
| BMR Calculator — Three Equations and the Spread Between Them | Calculate basal metabolic rate with Mifflin-St Jeor, Harris-Benedict and Katch-McArdle at once, and see how far apart they land on your numbers. | — | |
| Sweat Rate Calculator — Measure Your Own Fluid Loss | Work out your sweat rate in litres per hour from a weigh-in, weigh-out field test, and get a drinking range that stays safely under your loss. | — | |
| Steps to Calories Calculator — By Body Size, Not a Flat Constant | Convert steps to calories using your stride length and body mass, and see how far the usual flat 0.04 kcal-per-step constant misses for your size. | — |