Free Online Calculators
Access our comprehensive collection of free online calculators for health, finance, and everyday calculations. All tools are mobile-friendly and provide instant results.
BMI Calculator
Calculate your Body Mass Index (BMI) using metric or imperial measurements. Check if your weight is healthy for your height.
Age Calculator
Calculate your exact age in years, months, and days. Find out how old you are down to the precise day.
Sleep Calculator
Find the best time to wake up or go to sleep based on your sleep cycles. Optimize your sleep schedule for better rest.
Loan EMI Calculator
Calculate your loan EMI, total interest, and payment schedule. Perfect for mortgage and personal loan planning.
Salary to Hourly Converter
Convert your annual salary to hourly wage or vice versa. Include tax deductions and working hours.
Tip Calculator
Calculate restaurant tips and split bills among friends. Support for different tip percentages and currencies.
Discount Calculator
Calculate discounted prices and savings. Find the final price after percentage discounts.
Percentage Calculator
Calculate percentages, percentage change, and find what percentage one number is of another.
Compound Interest Calculator
Calculate compound interest and investment growth. Plan your savings and investment returns.
Water Intake Calculator
Calculate your daily water intake needs based on weight, activity level, and climate.
Heart Rate Zone Calculator
Calculate your target heart rate zones for different training intensities. Optimize your cardio workouts.
Steps to KM Converter
Convert walking steps to kilometers or miles. Calculate distance walked based on your step count.
Pregnancy Due Date Calculator
Calculate your baby's due date based on your last menstrual period or conception date.
Body Fat Percentage Calculator
Calculate your body fat percentage using various measurement methods including US Navy and skinfold methods.
Working Days Calculator
Calculate working days between two dates, excluding weekends and holidays. Perfect for project planning.
Countdown Timer
Create a countdown timer for any event or date. Perfect for deadlines, events, and special occasions.
Day of the Week Finder
Find what day of the week any date falls on. Perfect for historical dates or future planning.
Time Until Calculator
Calculate the exact time remaining until a specific date and time. Shows years, months, days, hours, and minutes.
Calorie Needs Calculator
Calculate your daily calorie needs based on age, gender, weight, height, and activity level using BMR formulas.
Sleep Debt Calculator
Calculate your sleep debt and find out how much sleep you need to catch up on for optimal health.
Currency Percentage Change Calculator
Calculate percentage change in currency values, investment gains/losses, and price differences.
Unit Price Calculator
Compare unit prices to find the best value. Calculate cost per unit, per kg, per liter, and more.