About Aaj Kya?

Aaj Kya? — Hindi for "what today?" — is a small collection of fast, free, everyday tools built for the maths that comes up constantly in Indian life: working out a discount, checking GST on a bill, calculating an EMI, or counting the days until something important.

Why we built this

Most calculator sites are slow, cluttered, or ask you to sign up for something that should take ten seconds. Aaj Kya? is built the other way round: open a tool, type your numbers, get your answer — on any phone, on a slow connection, without an app.

How it works

Every calculation runs directly in your browser. Nothing you type is sent to a server to be processed — the maths happens on your device, instantly, as you type.

More tools, regularly

Aaj Kya? is built so new tools can be added quickly and consistently. If there's a calculator or converter you wish existed, let us know.