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Settings

Set it once, and every tool follows

Which currency, how digits are grouped, how a date is written, which paper your printer holds. Answer here and the tools stop asking. Nothing on this page needs an account, and nothing on it leaves your device unless you ask for it to.

What that looks like

A large amount
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A small one
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A plain number
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A date
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Paper
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The week starts
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Money

Used by every calculator, invoice, payslip and set of books on the site.

Used wherever the amount is just an amount. Tools that apply a country’s tax rules keep that country’s currency and say so.
Indian grouping puts the first break after three digits and every two after that, which is how a lakh is read.
Whole numbers are easier to scan on a long schedule; the arithmetic is unchanged either way, only what is shown.

Dates and the week

How a date is written back to you, and which column a calendar starts in.

Documents and measurements

What the PDF tools reach for, and which units the converters open on.

What the PDF tools reach for first. A4 nearly everywhere; Letter in the United States and Canada.

Your books

The starting point for the bookkeeping and tax tools.

Which set of books and which tax vocabulary the accounting tools open with. It changes the starting point, never the arithmetic.

Where these are kept

On this device, in this browser, and nowhere else. They are not sent anywhere, they are not part of any account, and clearing your browser data removes them. A different browser, or the same browser on your phone, starts fresh.

If you have an account, these can follow you to another machine instead.

Pressing the first button loads the sign-in library on this page — the only thing here that does. Until then nothing about you has been sent.

Where this will not apply

14 tools keep their own currency, because in those the currency is part of the rule and not a label on it: Indian income tax is written in rupees, UK National Insurance in pounds, and converting the symbol would leave the arithmetic saying something untrue. Each of them says so under its own results.