Calculators

Quick answers.
Shown clearly.

orrgo calculators give instant, clearly explained answers: loan EMI with a full amortization schedule, SIP and lump-sum returns, GST with CGST/SGST split, percentages, exact age, BMI and unit conversions.

Which calculator do I need?

I want to know…Use
My monthly loan payment and total interestEMI Calculator
What a monthly investment could grow toSIP Calculator
The GST on a price, or the price before GSTGST Calculator
A percentage, discount or percentage changePercentage Calculator
Exact age on a dateAge Calculator
My body mass indexBMI Calculator
A value in different unitsUnit Converter

Accurate and transparent

Each calculator uses the standard published formula — reducing-balance EMI, monthly-compounded SIP, WHO BMI categories — and shows its working: schedules, tables and the formula itself, so you can check the numbers rather than trust a black box. Results are estimates for planning, not financial or medical advice.

Frequently asked questions

Is it free? Do I need an account?
Yes, it is completely free with no sign-up, no watermarks and no daily limits.