Health
Estimate BMI, daily calorie needs (using the Mifflin-St Jeor formula), and body fat percentage via the US Navy method. No personal data leaves your browser.
Alcohol Calories Calculator
Calculate calories from any alcoholic drink by ABV and volume. Free, instant, and runs entirely in your browser — no account required.
HealthNewBlood Pressure Checker
Check your blood pressure reading against AHA guidelines instantly — free, no account required, and processed entirely in your browser.
HealthBMI Calculator
Calculate your Body Mass Index from height and weight. Metric and imperial. Free, private.
HealthNewBMI Category Reference
Interactive BMI category reference chart with WHO and CDC standards. Enter your BMI to instantly see your classification, plus full tables by category and age group.
HealthNewBody Fat Calculator
Estimate body fat percentage using the US Navy method. Enter height, waist, neck (and hip for women) — no equipment needed.
HealthCalorie Calculator
Estimate daily calorie needs (BMR and TDEE) using the Mifflin-St Jeor formula. Free, private.
HealthNewCalorie Deficit Calculator
Calculate your daily calorie deficit and estimated time to reach your weight loss goal. Free, no account required, runs entirely in your browser.
HealthNewDaily Protein Calculator
Calculate your daily protein intake based on bodyweight and goal (lose fat, maintain, or build muscle). Free, instant, no signup.
HealthNewDaily Water Intake Calculator
Calculate your daily water intake based on weight, activity level, climate, and physiological factors like pregnancy. Free, instant, no signup.
HealthNewExercise Calorie Burn
Calculate how many calories you burn during exercise. Select from 24 activities, enter your weight and duration — instant kcal estimate using MET values.
HealthNewHeart Rate Zones Calculator
Calculate your 5 training heart rate zones instantly from your age. Free, no account required — runs entirely in your browser.
HealthNewIdeal Weight Calculator
Calculate your ideal body weight using the Hamwi formula. Free, no account required, and runs entirely in your browser.
HealthNewMacro Calculator
Calculate your daily protein, carbs, and fat targets based on calories, body weight, and fitness goal. Free, no account required, works in your browser.
HealthNewMenstrual Cycle Calculator
Calculate your next period date, ovulation window, and fertile days based on your last period and average cycle length. Free, instant, no data leaves your browser.
HealthNewOne Rep Max Calculator
Calculate your one-rep max (1RM) using the Epley formula — free, no account required, runs in your browser. Includes training percentage breakdowns for kg and lbs.
HealthNewOne Rep Max Estimator
Estimate your one-rep max (1RM) using four formulas — Epley, Brzycki, Lander, and Lombardi — with a side-by-side comparison and training percentage breakdown. Free, instant, runs in your browser.
HealthNewOvulation Calculator
Calculate your fertile window and estimated ovulation date from your last period and cycle length. Free, instant, no signup.
HealthNewpH Calculator
Calculate pH, pOH, and ion concentrations from a pH value or H⁺ concentration. Free, instant, and works entirely in your browser — no account required.
HealthNewPregnancy Due Date Calculator
Calculate your estimated due date from last period or conception date. Shows current week of pregnancy and trimester.
HealthNewPregnancy Due Date Calculator
Calculate your estimated due date using Naegele's rule (LMP + 280 days). See your current trimester, days remaining, and key milestone dates. Free, instant, private.
HealthNewPregnancy Due Date Calculator
Calculate your estimated due date and trimester milestones from LMP or conception date. All in-browser, no data leaves your device.
HealthNewPregnancy Weight Gain Calculator
Calculate recommended weight gain during pregnancy based on pre-pregnancy BMI and current week. Follows IOM guidelines.
HealthNewRunning Pace Calculator
Calculate your running pace from distance and time, or find your finish time from a target pace. Supports km and miles with projected race split times. Free, instant, no signup.
HealthNewSleep Calculator
Find the best wake-up times based on your bedtime and 90-minute sleep cycles. Free sleep calculator — no account required, runs in your browser.
HealthNewSleep Cycle Calculator
Find optimal bedtime or wake-up times based on 90-minute sleep cycles — runs entirely in your browser.
HealthNewSteps to Calories
Convert step count to calories burned for walking or running, free and in your browser. Enter your steps and body weight — no account required.
HealthNewVitamin D Calculator
Estimate your daily vitamin D needs based on age, sun exposure, and diet. See how much you get from each source and whether you need a supplement.
HealthNewWater Intake Calculator
Calculate your daily water intake target based on body weight and activity level. Free, no account required, runs entirely in your browser.
HealthNewWind Chill Calculator
Calculate the wind chill temperature using the NWS formula. Free, supports °F/°C and mph/kph, no account required — runs entirely in your browser.
HealthNewWorkout Plan Generator
Generate a personalised weekly workout plan by goal, fitness level, and equipment — free, instant, browser-only.