Calculators for
everyday questions.
Check a discount, work out your take-home pay or count the days between two dates.
Browse calculators Free to use. No account needed.Percentage calculator
Find a calculator
Percentage calculator
Find a percentage of a number, with step-by-step working.
Percentage change
Work out the increase or decrease between two numbers.
Percentage difference calculator
Compare two values using their average as a shared baseline.
Reverse percentage calculator
Find the original number when you know a percentage of it.
Discount calculator
Find the sale price and how much you’ll save.
VAT calculator
Add or remove VAT from a price at any rate.
Days between dates
Count days between dates or nights in a hotel stay.
Business days calculator
Count working days between two dates, excluding weekends.
Date calculator
Add or subtract days from a date to find the resulting date.
Time duration
Find the hours and minutes between two times.
Decimal hours calculator
Convert hours and minutes to decimal hours for a timesheet.
Tip calculator
Work out how much to tip and your total bill.
Average calculator
Find the mean (average) of a set of numbers.
Salary sacrifice take-home pay calculator
Compare UK take-home pay before and after pension salary sacrifice.
UK take-home pay calculator
Estimate your take-home pay after Income Tax, National Insurance, student loan and pension.
US take-home pay calculator
Estimate your take-home pay after federal tax, state tax, Social Security and Medicare.
Canada take-home pay calculator
Estimate your take-home pay after federal tax, provincial tax, CPP and EI.
Australia take-home pay calculator
Estimate your take-home pay after income tax, the Medicare levy and HELP repayments.
New Zealand take-home pay calculator
Estimate your take-home pay after PAYE tax, ACC levy and KiwiSaver.
Random number generator
Pick a random number between any two values. Opens on Random Number Gen.
Password generator
Make a strong random password at the length you need. Opens on Random Number Gen.
No calculators match your search. Try “percentage”, “time”, or “average”.