My numbers
Enter these once and 40 of our 189 calculators start from your figures instead of examples. They stay in this browser only: nothing is sent to us.
How it works
When you open a calculator, the fields that match your numbers are filled in, converted to that calculator’s currency if it uses another one. Change a field on a calculator and that calculator remembers your change; save here again and your numbers take over everywhere.
Shared links always show the numbers in the link, never yours. Clearing your numbers, or your browser’s site data, removes them.