Calculators
BMI CalculatorCalculate your Body Mass Index from height and weight in metric or imperial units, and see your WHO weight category instantly.Percentage CalculatorCalculate X% of Y, find what percent one number is of another, and work out percentage increase or decrease — all instantly, right in your browser.Tip CalculatorCalculate the tip, total bill, and per-person split amount instantly, right in your browser.Loan CalculatorCalculate your fixed monthly loan payment, total amount paid, and total interest for any loan amount, interest rate, and term.Number to Words ConverterConvert any whole number into its English word form — cardinal ("one hundred twenty-three") or ordinal ("one hundred twenty-third") — handy for checks, invoices, and legal documents.Calorie CalculatorEstimate your daily calorie needs (TDEE) and Basal Metabolic Rate (BMR) from your age, height, weight, sex, and activity level.GPA CalculatorCalculate your grade point average on the standard US 4.0 scale — enter each course's letter grade and credit hours and get a credit-weighted GPA instantly.