Free Calculators · by Mana Studio

Free calculators for money and everyday maths

EMI, SIP, GST, percentages and more — instant results, right in your browser.

Finance

Work out monthly loan EMIs, total interest and payment.

Project the future value of a monthly SIP investment.

Add or remove GST at 5%, 12%, 18% or 28%.

Percent of a number, change, and X is what % of Y.

Find the sale price and how much you save.

Calculate exact age in years, months and days.

By Mana Studio

We build websites, tools and calculators tailored to your business — fast, mobile-first, and ready to rank.

If the numbers behind the calculator live in spreadsheets people email around, that is the thing worth fixing. See AI & automation work.

Two separate price lists — see every price we charge.

6 free calculators — all instant and private in your browser.