Every calculation life throws at you.
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Date & time 4
- Date calculator Count the days between two dates, or add days to a date.
- Age calculator Work out an exact age from a date of birth, on today or any other date.
- Chinese zodiac calculator Find your Chinese zodiac animal and element, with the Chinese New Year cut-off handled for you.
- Chinese lunar calendar converter Convert Western and Chinese lunar dates both ways, and find your lunar birthday for the next 10 years.
Money & taxes 9
- Mortgage repayment calculator Work out your monthly mortgage repayments, total interest and a yearly repayment schedule.
- Car finance calculator Work out your monthly car finance payment and total cost from the APR.
- Compound interest calculator See how a lump sum or regular monthly saving grows with compound interest.
- Tip calculator Work out a 10% or 12.5% tip, split the bill and round up to the pound.
- Loss recovery calculator How much a share or fund must rise to recover a loss, how long it could take, and what averaging down does.
- Mortgage overpayment calculator See the interest you save and how much sooner you are mortgage-free by overpaying, monthly or as a lump sum.
- VAT calculator Add VAT to a price or remove it from a VAT-inclusive price, at 20%, 5% or 0%.
- Self employed tax calculator (2026/27) Income Tax and Class 4 NI on your sole trader profit, and how much to put aside each month.
- Capital gains tax calculator (2026/27) Tax on a gain from property or shares, the 18%/24% split and your 60-day or January deadline.
Pay & work 3
- Holiday entitlement calculator Work out statutory annual leave in days or hours, for full-time, part-time, irregular hours and part-year starters or leavers.
- Pro rata salary calculator Work out your part-time salary from a full-time salary and hours, with monthly, weekly and hourly pay and pro rata holiday.
- Statutory redundancy pay calculator Your legal minimum redundancy pay from age, years worked and weekly pay, with the 2026 cap.
Random & picks 1
Health 3
- Pregnancy due date calculator Find your due date, how many weeks pregnant you are and when your NHS antenatal appointments are.
- Chinese gender predictor Converts the mother's age and conception month to the Chinese calendar and reads the Chinese gender chart. Just for fun.
- BMI calculator Find your BMI in stones and pounds or kg, your weight category and healthy weight range.