About RozTools

RozTools is a free collection of everyday tools for people in India: loan, percentage and age calculators, with more tools coming. “Roz” means daily.

Who makes it

I'm Arjun. I kept searching for simple things like my EMI or my age as on an exam cut-off date, and kept landing on slow pages full of pop-ups. I wanted one place that loads fast on any phone and gets the numbers right.

How numbers are checked

• Every rate, slab, limit and date comes from an official source, linked on the tool page.
• Each tool page shows the date it was last verified.
• Calculators are tested against official worked examples before they go live.

Found a mistake?

Please tell us on the contact page. We fix confirmed errors quickly.