CALC AI: GST & EMI Calculator

Type your money question the way you would say it. CALC AI works it out, shows the working, and tells you what the answer means.

"Split ₹2,400 between 5 with a 10% tip" becomes 2400 ÷ 5 × 1.1 = ₹528, and one tap on "Understand this" tells you: each of the 5 friends pays ₹528.

An AI calculator for everyday money in India: GST, EMI, loans, SIP, FD and income tax, plus a new maths challenge every day.


ASK IN PLAIN ENGLISH
No formulas to remember. Ask things like:
• "18% GST on ₹4,500"
• "EMI on 3 lakh at 9% for 3 years"
• "25% off a ₹1,600 kurta"
CALC AI turns your words into a sum, does the arithmetic itself and shows the sum it used, so you can check it.


KNOW WHAT THE NUMBER MEANS
Tap "Understand this" on a result and CALC explains it in two or three plain sentences: who pays what, what a loan really costs, how much of a bill is tax.


GST CALCULATOR
Add GST to a price or take it out of a tax-inclusive bill, at the current 5%, 18% and 40% slabs. See the GST amount, the total, and the CGST and SGST split for a sale within one state, down to the paisa. Made for shopkeepers checking an invoice and anyone checking a bill.


EMI AND LOAN CALCULATORS
See the monthly EMI, the total interest and the full amount you will repay, with a chart of how each payment splits between principal and interest. Also: loan eligibility (how much can I borrow?), home loan, personal loan.


MORE MONEY TOOLS
• SIP calculator for mutual fund returns
• FD calculator for fixed deposit maturity
• Income tax estimate, new vs old regime
• GST invoice maker
• Currency converter with daily rates
• Gold price per gram, by karat, with a tola converter
• Discount, percentage and tip & split calculators
• Unit converter and age & date calculator

Every number is written the Indian way: ₹1,25,000, lakh and crore, not 125,000.


A DAILY MATHS CHALLENGE
One real-life money puzzle every day: an electricity bill, a GST bill, fuel for a road trip, a salary hike. Three attempts, a running clock, and a streak that grows each day you solve it. Every answer is checked before it reaches you.


BUILT TO BE PLEASANT TO USE
Clean Day Mode by default, or Dark Mode if you prefer. Large keys, one-handed use, and your calculation history always there. The calculators work offline; the AI features and live rates need a connection.


FREE, WITH AN OPTIONAL PRO
Free: every calculator, the daily challenge, streaks and achievements, 5 AI questions a day and 3 explanations a week. No account needed; sign in with Google only if you want your streak on a new phone.

CALC AI Pro removes all ads and the AI limits, keeps unlimited history, and adds PDF export and the full month-by-month loan and year-by-year SIP breakdowns. Cancel anytime in Google Play.


WHO IT IS FOR
• Shopkeepers and small businesses working out GST
• Anyone comparing loan offers before signing
• Families splitting bills and planning savings
• Students and job-seekers keeping their mental maths sharp


Figures are estimates to help you decide, not financial or tax advice. Check anything important with your bank or a CA.

Download CALC AI: ask the question, get the answer, understand it.