Smart Health Tools
Calculate your fitness level, energy needs, and more with our accurate and easy-to-use tools.
BMI Calculator
Body Mass Index based on weight and height.
Calorie Calculator
Daily energy expenditure (TDEE).
Max Heart Rate
Estimated training heart rate.
Ideal Weight
Recommended weight by height and gender.
Body Fat Calculator
Estimated percentage using body measurements.
Date & Planning Tools
Useful calculators for age, pregnancy, and personal scheduling.
Smart Health Calculators and Tools
Maintaining a healthy and organized lifestyle is easier when you have access to accurate and reliable tools. At CalcFit, we offer a wide range of health calculators and personal utilities designed to help you better understand your body, plan important dates, and solve daily calculations effortlessly.
With our tools, you can calculate your Body Mass Index (BMI), estimate your ideal weight, determine your maximum heart rate, estimate your body fat percentage, and calculate your daily calorie needs based on your physical activity level.
You can also find out your exact age, calculate how many days are between two dates, track your fertile days, predict your due date, and quickly solve percentages and discounts.
Whether your goal is to lose weight, organize your calendar, or simply save time, our tools are designed to give you practical, fast, and scientifically backed solutions where applicable.
Frequently Asked Questions (FAQ)
How do I calculate my BMI?
You can calculate your Body Mass Index (BMI) by dividing your weight in kilograms by your height in meters squared. Our BMI Calculator does it automatically for you.
How do I calculate my body fat percentage?
Our Body Fat Calculator estimates your fat percentage based on measurements like waist, neck, and hip circumference (for women).
How many calories should I eat per day?
Our Daily Calorie Calculator helps you estimate your Total Daily Energy Expenditure (TDEE) based on your weight, height, age, and activity level.
What is my ideal weight based on height?
Our Ideal Weight Calculator helps you determine a healthy weight range based on your height and gender using established methods.
How do I calculate my maximum heart rate?
Our Heart Rate Calculator helps you estimate your maximum beats per minute during exercise.
How do I know my exact age?
Our Age Calculator shows how many years, months, and days you've lived since your birth date.
How do I calculate the days between two dates?
With our Date Difference Calculator, you can get the exact number of days, weeks, or months between two dates.
How do I calculate my fertile days?
Use the Ovulation Calculator to estimate your fertile window based on your last menstrual period.
How do I know which week of pregnancy I'm in?
Our Pregnancy Week Calculator helps estimate your current gestational week by entering your last menstrual period.
How do I calculate my due date?
With our Due Date Calculator, you can estimate your baby's birth date using your last period date.
What our users say:
Helped me organize my diet and training. Thank you!
Valentina S.
Very accurate results. Great for monthly tracking.
Lucas M.
The ovulation calculator was super clear. Great for planning.
Carolina F.
I use the age calculator for my students. Very practical.
Rodrigo H.
I'm pregnant and it showed me the exact week. Very helpful and accurate.
Martina C.
Everything’s fast and without annoying ads. Great site!
Sergio T.
Verified
Calculations backed by scientific formulas
Privacy
No data stored. 100% private
Medical
Inspired by medical recommendations