Health
Blood Oxygen Log
Track and monitor your blood oxygen saturation (SpO₂) and pulse readings over time. Log values from your pulse oximeter, tag context (rest, exercise, sleep), and visualize trends.
Blood Pressure Log
Track and monitor your blood pressure readings over time. Log systolic, diastolic, and pulse values with notes. Visualize trends and get category insights.
Blood Sugar Log
Track and monitor your blood glucose readings over time. Log fasting, before-meal, after-meal, and bedtime values in mg/dL or mmol/L. Visualize trends and get category insights.
BMI Calculator
Calculate your Body Mass Index (BMI) and understand your weight category with our easy-to-use BMI calculator supporting both metric and imperial units.
Body Fat Calculator
Calculate your body fat percentage using US Navy method and BMI method. Free body fat calculator with comprehensive results, ideal ranges, and health recommendations.
Body Surface Area Calculator
Calculate Body Surface Area (BSA) using six clinical formulas: Mosteller, DuBois, Haycock, Gehan & George, Boyd, and Fujimoto. Used for chemotherapy dosing, cardiac index, and burn assessment.
Body Temperature Log
Track body temperature readings in Celsius or Fahrenheit, monitor fever trends, and export your data locally from your browser.
Caffeine Intake Calculator
Track your daily caffeine intake from coffee, tea, energy drinks, and soda. Compare your total to safe limits based on weight, pregnancy, or age, and see sleep impact.
Calorie Burned Calculator
Calculate calories burned during exercise and daily activities. Uses accurate MET values for over 40 activities including running, cycling, swimming, sports, and household tasks.
Calorie Deficit Calculator
Calculate your daily calorie deficit to reach a goal weight by a target date. Get your BMR, TDEE, target intake, and safety guidance based on Mifflin-St Jeor and the 7,700 kcal/kg rule.
Daily Calorie Needs Calculator
Calculate your daily calorie requirements based on age, height, weight, sex, and activity level. Get personalized BMR and TDEE calculations for weight loss, maintenance, and weight gain goals.
Daily Water Intake Calculator
Calculate how much water you should drink per day based on your weight, activity level, and climate.
Electrolyte Intake Calculator
Calculate daily intake of sodium, potassium, magnesium, and calcium from food, drinks, and supplements. Personalised targets adjust for sex, age, activity level, and sweat loss.
Heart Rate Tracker
Log and monitor your resting, active, and sleeping heart rate over time. View trends, charts by period, and understand your cardiovascular health with category insights.
Heart Rate Zone Calculator
Calculate your 5 personalized heart rate training zones using Max HR or Karvonen method. Free calculator for runners, cyclists, and athletes to optimize workout intensity.
Ideal Body Weight Calculator
Calculate your Ideal Body Weight (IBW) using Devine, Hamwi, Robinson, and Miller formulas. Also calculates Adjusted Body Weight (AdjBW) for obese patients. Free, instant, and clinically accurate.
Macro Calculator
Calculate daily calories and macronutrient targets for maintenance, fat loss, or muscle gain.
Pregnancy Due Date Calculator
Calculate pregnancy due dates from last menstrual period or conception date. Include trimester breakdowns, important milestone dates, appointment schedules, and fetal development information.
Protein Intake Calculator
Calculate your daily protein needs based on body weight, activity level, age, and goal (maintain, lose, gain, endurance).
Sleep Calculator
Find the best time to wake up or go to sleep based on 90-minute sleep cycles.
Sleep Debt Calculator
Track your weekly sleep debt and get a personalised recovery plan based on your sleep goal.
Sodium Intake Calculator
Track sodium from meals, snacks, and packaged foods against a daily target. Calculate total sodium in milligrams, remaining allowance, percent of target, and salt equivalent.
Step Goal Tracker
Track your daily steps and walking goals. Log steps, monitor streaks, view weekly charts, and see distance and calories burned. Custom step goals with local storage.
Symptom Tracker
Track symptoms privately in your browser with daily logs, severity ratings, trend summaries, and JSON backup tools. No sign-up and no cloud sync.
Waist-to-Height Ratio Calculator
Calculate your Waist-to-Height Ratio (WHtR) to assess cardiovascular and metabolic health risk. Supports metric and imperial units with risk categories and health guidance.