Unit converter, percentages, BMI and more

Nine calculators you need about once a month: units and bases, percentages, list statistics, BMI, primes and random numbers, and spelling a number out.

9 tools in this category

• Calculators
  Unit Converter
  Enter one number and see it in every unit of the chosen category, length, weight, temperature or volume, updated as you type.
  ⚡ Client-Side
• Calculators
  Unix Timestamp Converter
  Turn a Unix timestamp (seconds since 1970) into a readable date, or convert a date back into Unix time.
  ⚡ Client-Side
• Calculators
  BMI Calculator
  Enter your height and weight to see your body mass index and the category it falls into right away.
  ⚡ Client-Side
• Calculators
  Percentage Calculator
  Three common percentage sums in one place: a share of a number, one number as a percentage of another, and the change between two values.
  ⚡ Client-Side
• Calculators
  Number to Persian Words
  Type a number in Persian or Latin digits and get its written-out Persian form, useful for checks, contracts and official documents.
  ⚡ Client-Side
• Calculators
  Number Base Converter
  Enter a number in base 2, 8, 10 or 16 and see the same value in all four bases at once.
  ⚡ Client-Side
• Calculators
  Random Number Generator
  Set a range and a count to get a list of random numbers, with a no-repeats option for draws and sampling.
  ⚡ Client-Side
• Calculators
  Prime Number Checker
  See whether a number is prime, find the nearest primes around it and get its prime factorisation.
  ⚡ Client-Side
• Calculators
  Mean, Median & Std Dev
  Paste a list of numbers to get the count, sum, mean, median, minimum, maximum and standard deviation at once.
  ⚡ Client-Side