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Business & finance calculators
Quick, accurate calculators for the numbers business owners, employees and students need most — tax, salary, GST, loans, investments, pricing and cash. Each one explains the formula and walks through a worked example in rupees.
Tax & salary
Income tax calculator (old vs new regime)
Which tax regime saves me more?
Compare tax under the old and new regimes for FY 2025-26 and FY 2026-27, with deductions, rebate, surcharge and cess.
CTC to in-hand salary calculator
How much salary will I actually get each month?
Break a CTC into basic, PF, gratuity, professional tax and income tax to see your monthly take-home pay under either tax regime.
GST calculator
How much GST do I add or remove?
Add GST to a price or extract it from a GST-inclusive amount, with the CGST/SGST or IGST split, at the current 5%, 18% and 40% rates or any custom rate.
Loans & investments
EMI calculator
What will my loan EMI be?
Monthly instalment, total interest and a year-by-year repayment schedule for business, home, car or personal loans.
SIP calculator
What will my monthly SIP grow to?
Estimate the future value of a monthly investment at an expected annual return, and how much of it is gains.
Compound interest calculator
How much will my money grow with compounding?
See how principal grows at a given rate with yearly, half-yearly, quarterly or monthly compounding.
CAGR calculator
What is my compound annual growth rate?
Turn a starting value, an ending value and a number of years into one comparable yearly growth rate.
ROI calculator
Was this investment worth it?
Return on investment as a total percentage and as an annualised rate, so projects of different lengths can be compared.
Pricing & profit
Profit margin calculator
What is my profit margin on this product?
Enter cost and selling price to get profit, margin % and markup % side by side — so you never confuse the two.
Markup calculator
What price should I sell at for my target markup?
Set a cost and a markup or target margin and get the selling price, profit per unit and the equivalent margin.
Discount calculator
What is the final price after discounts?
Apply one or two successive discounts, see the effective discount and the price after GST.
Break-even calculator
How many units do I need to sell before I stop losing money?
Three numbers — fixed costs, price, and variable cost per unit — tell you exactly where the floor is.
Business finance
Working capital calculator
How much cash is tied up in running my business?
Working capital, current ratio, quick ratio and the cash conversion cycle in days from your balance sheet numbers.
Cash flow runway
How long can my business survive on current cash?
Map money in against money out, find your monthly burn or surplus, and see your runway in plain months.
Cash flow simulator
What does my cash position look like six months from now?
A month-by-month table of revenue, costs and profit that keeps a running cumulative cash total as you fill it in.
Customer lifetime value
How much is one loyal customer worth?
Work out what a customer is worth over their whole relationship with you — and how much you can afford to spend winning one.
Acquisition cost auditor
What does each new customer really cost me?
Compare your marketing channels by true cost per customer, then see which to double down on and which to cut.
Frequently asked questions
Are these calculators free?
Yes. Every calculator is free to use, with no sign-up, and your numbers stay in your browser.
Are the tax calculators up to date?
The income tax and salary calculators use FY 2025-26 and FY 2026-27 slab rates (Budget 2026 made no changes). The GST calculator reflects the 5%, 18% and 40% structure in force since 22 September 2025.
Can I rely on the results for filing taxes?
They are estimates for planning. For filing and complex situations, check with a chartered accountant or tax professional.