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These free everyday tools solve the small questions that come up all the time: how old am I exactly, how many days until a date, what time is it in another country, how many miles is 10 kilometres, or what is each person's share of the bill?
Convert units across length, weight, volume, temperature and more, plan meetings across time zones with daylight saving handled for you, check your BMI, count the words in a text or work out the average of a list. Each tool is simple, accurate and works without an account.
Find your exact age in years, months and days from your date of birth.
Open tool →Find the number of years, months, weeks and days between two dates.
Open tool →Convert a date and time between world time zones, including daylight saving.
Open tool →Convert length, weight, volume, area, speed, temperature, data and time units.
Open tool →Estimate fuel used and total trip cost.
Open tool →Calculate average pace from distance and time.
Open tool →Work out the tip, the total bill and each person's share.
Open tool →Calculate your body mass index and see the adult weight category.
Open tool →Find the mean, median, mode, range and sum of a list of numbers.
Open tool →Count words, characters, sentences and paragraphs, and estimate reading time.
Open tool →Generate random whole numbers in any range, with or without repeats.
Open tool →Yes. Age and date difference calculators use real calendar dates, so leap days and different month lengths are counted correctly.
Yes. It uses the actual rules for the date you pick, so the difference between two cities can change by an hour at different times of the year.
No. All calculations, including dates of birth and text for the word counter, happen in your browser and are not sent to a server.