Free online tools that work right in your browser. No sign-up required.
Calculate percentages, percentage change, and find what percent one number is of another.
Calculate your Body Mass Index and find out if you're in a healthy weight range.
Count words, characters, sentences, and paragraphs in any text instantly.
Calculate your exact age in years, months, and days between any two dates.
Convert between different units of length, weight, temperature, volume, and area.
Calculate the final price after a discount and see how much you save.
Calculate tip amounts and split the bill among friends easily.
Calculate monthly loan payments and total interest for any loan amount.
Calculate mean, median, sum, min, and max for any set of numbers.
Convert time between different time zones worldwide.
Convert between currencies using up-to-date exchange rates.
Convert numbers to Roman numerals and Roman numerals back to numbers.
Convert numbers between binary, octal, decimal, and hexadecimal bases.
Generate strong, random passwords with customizable character sets.
Generate placeholder text for your designs and mockups.
Convert text between uppercase, lowercase, title case, camelCase, and more.
Encode or decode URLs and query strings for safe web usage.
Calculate your daily calorie needs based on BMR and activity level.
Calculate pregnancy due date based on last menstrual period (Naegele's rule).
Calculate the exact difference between two dates in days, weeks, months, and years.
Can't decide what to eat? Pick a random dish from 140 meals across 7 countries.
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