Quick access: 📊BMI 🔥Calories 📉Deficit 🎛️Macros 🩸Blood Pressure 🔬Diabetes Risk 📅Due Date 🌸Period 😴Sleep 🚭Smoking Cost 🧬Bio Age All 35 →
17+ Tools

All Calculators

Free, instant health calculators for body, nutrition, fitness, pregnancy, and more. All with AI-powered insights.

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⚖️ Body & Weight
📊
BMI Calculator
Body Mass Index with AI health insight, healthy weight range and visual gauge.
Most Popular
🫀
Body Fat Calculator
Estimate body fat % using the US Navy circumference method.
Body
🎯
Ideal Weight Calculator
Find your ideal weight using 5 different clinical formulas.
Weight
🥗 Nutrition & Calories
🔥
Calorie Calculator
Daily calorie needs based on your stats, activity level and goal.
Nutrition
⚡
BMR Calculator
Basal Metabolic Rate — calories burned at complete rest.
Metabolism
🏃
Calories Burned
Calories burned during 50+ exercises using MET values.
Exercise
🥑
Fat Intake Calculator
Daily fat targets including saturated and unsaturated breakdown.
Nutrition
💪
Protein Calculator
Daily protein needs for your weight, age, and fitness goals.
Nutrition
🍞
Carbohydrate Calculator
Recommended carb intake for your energy and health needs.
Nutrition
🎛️
Macro Calculator
Complete protein, carbs and fat targets for your body and goals.
Nutrition
🏋️ Fitness & Performance
❤️
Target Heart Rate
Training zones for fat burn, cardio and peak performance.
Fitness
⏱️
Pace Calculator
Running pace, finish time and distance for any race distance.
Running
🤰 Pregnancy & Women's Health
📅
Due Date Calculator
Estimated due date from LMP, conception date or ultrasound.
Pregnancy
🤱
Pregnancy Calculator
How far along you are and what's happening this week.
Pregnancy
🌱
Conception Calculator
Fertile window, ovulation date, and best days to conceive.
Fertility
⚖️
Pregnancy Weight Gain
Recommended weight gain based on pre-pregnancy BMI.
Pregnancy
🌸
Period Calculator
Predict your next 3 periods, fertile days, and ovulation dates.
Women's Health
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