Free Online Calculators
Simple, accurate and easy-to-use calculators for everyday needs. Your calculations stay in your browser.
Calculate with confidence
Health, finance, education and everyday calculators with clear formulas and explanations.
All calculators
BMI Calculator
Calculate BMI and view an estimated healthy weight range.
Use calculator →Weight Gain Calculator
Estimate maintenance calories, a modest surplus and rough time to a target.
Use calculator →Weight Loss Calculator
Estimate maintenance calories, an illustrative deficit and rough progress time.
Use calculator →Calorie Calculator
Estimate BMR, maintenance calories and illustrative goal calories.
Use calculator →Age Calculator
Calculate exact age, total days and your next birthday.
Use calculator →Percentage Calculator
Solve common percentage problems with step-by-step results.
Use calculator →Loan EMI Calculator
Calculate monthly EMI, total interest and repayment.
Use calculator →Compound Interest Calculator
Estimate compound growth with different compounding frequencies.
Use calculator →Discount Calculator
Calculate discount savings, tax and final price.
Use calculator →CGPA to Percentage Calculator
Convert CGPA to percentage using a selectable method.
Use calculator →Useful tools without unnecessary complexity
Clear inputs, transparent formulas and browser-based calculations.
Privacy-first by design
Calculator inputs are processed locally with JavaScript and are not sent to an external calculation service.