Free online calculators for BMI, calorie intake, BMR, body fat, pregnancy, and hydration
Calculate your Body Mass Index and health status
Calculate your daily calorie needs for weight goals
Calculate your Basal Metabolic Rate
Estimate your body fat percentage
Calculate estimated due date from last period
Calculate your daily water needs
| Goal | Daily Calories |
|---|---|
| Weight Loss (0.5 kg/week) | 0 |
| Weight Loss (1 kg/week) | 0 |
| Maintenance | 0 |
| Weight Gain (0.5 kg/week) | 0 |
| Activity Level | Calories/Day |
|---|---|
| Sedentary (little or no exercise) | 0 |
| Lightly active (light exercise 1-3 days/week) | 0 |
| Moderately active (moderate exercise 3-5 days/week) | 0 |
| Very active (hard exercise 6-7 days/week) | 0 |
| Extra active (very hard exercise & physical job) | 0 |
| Category | Women | Men |
|---|---|---|
| Essential Fat | 10-13% | 2-5% |
| Athletes | 14-20% | 6-13% |
| Fitness | 21-24% | 14-17% |
| Average | 25-31% | 18-24% |
| Obese | 32%+ | 25%+ |
| Milestone | Date |
|---|---|
| First Trimester Ends | - |
| Second Trimester Ends | - |
| Estimated Due Date | - |
| Situation | Additional Water |
|---|---|
| Exercise (30 min) | +350-500 ml |
| Hot weather | +500 ml |
| Pregnancy | +300 ml |
| Breastfeeding | +700 ml |
Get accurate health calculations in just a few simple steps
Choose from our six health calculators for BMI, calories, BMR, body fat, pregnancy, and water intake
Input your personal information like age, weight, height, and other relevant measurements
View your calculated results with detailed breakdowns and health recommendations
Use the results to monitor your health progress and make informed decisions
Our free Health & Fitness Calculators provide accurate health calculations for a variety of needs. Whether you're tracking your BMI, planning your calorie intake, calculating your BMR, or estimating pregnancy due dates, our tools make health monitoring simple and accessible.
These calculators are designed for individuals, fitness enthusiasts, pregnant women, and anyone who wants to maintain or improve their health. They're perfect for setting fitness goals, monitoring progress, and making informed health decisions.
All calculations happen directly in your browser, ensuring your health data remains private and secure. No information is sent to any server.
Find answers to common questions about our health calculators
Yes! All our health calculators are completely free to use with no limitations. You can use them as much as you need without any cost.
No. All calculations happen directly in your browser. Your health data never leaves your device, ensuring complete privacy and security.
Our calculators use standard medical formulas and algorithms to provide accurate results. However, for critical health decisions, we recommend consulting with healthcare professionals.
BMR (Basal Metabolic Rate) is the number of calories your body needs at complete rest. Your total calorie needs include BMR plus calories burned through daily activities and exercise.
Yes, we have a dedicated pregnancy calculator. However, always consult with your healthcare provider for personalized medical advice during pregnancy.