Profit Margin Calculator
Profit Margin Calculator is a free tool that shows your real profit, margin and markup on each sale, the right price with GST, and the sales a discount needs.
- Free
- No sign-up
- Runs in your browser
Find out how much you really keep from every sale. Enter your cost and your selling price — or the margin you want — and see your profit, margin and markup, with GST handled correctly whether your price includes it or not. Thinking of a discount? See exactly how many extra sales you need just to earn the same. All amounts use Indian lakh and crore.
Your workspace
What do you want to work out?
The selling price I typed…
Most shop price tags (MRP) already include GST. Quotes to businesses are often before GST.
Fill in the details above, then press the button to see your result.
Guide
How to use it
- 1Choose whether you want to check your current price or find the price for a target margin.
- 2Enter what one item or job costs you, and your selling price or the margin you want.
- 3Pick your GST rate and say whether your price already includes GST.
- 4Optionally add a discount and your monthly sales, then press Calculate.
What the results mean
- Profit margin
- How much of the selling price you keep as profit. A 25% margin means you keep ₹25 from every ₹100 the customer pays (before GST).
- Markup
- How much you add on top of your cost. Buying at ₹100 and selling at ₹150 is a 50% markup, but only a 33% margin.
- GST-inclusive price
- A price that already has GST inside it, like the MRP on a product. To find your own share, the GST part is taken out first.
Common questions
What is the difference between margin and markup?
Markup is worked out on your cost; margin is worked out on your selling price. The same sale always shows a bigger markup than margin, so always check which one someone means.
Should GST be counted in my profit?
No. The GST you collect belongs to the government, so profit and margin are worked out on the price before GST. If you can claim back GST on purchases, leave it out of your cost too.
Why does a small discount need so many extra sales?
A discount comes straight out of your profit, not your price. If you make ₹40 on a ₹100 sale, 10% off cuts your profit to ₹30 — so you need a third more sales to earn the same.
Which GST rates can I choose?
0%, 3% (gold and jewellery), 5%, 18% and 40% — the main rates since the GST changes of September 2025. Your accountant can confirm the rate for your product or service.
Guides on this topic
- How to Write a Quotation That Clients Say Yes ToWhat a quotation must contain, how to show GST and discounts, how it differs from an estimate or proforma invoice, and how to follow up politely.
- Google Ads for Small Business: Read Before You SpendHow Google Ads charges you, the sums to do before starting, five default settings that waste a small budget, and how to write ads that bring real enquiries.
- Profit Margin vs Markup: Price Your Products RightThe difference between margin and markup with a worked example, what a discount really costs, where GST fits, and five ways to protect your profit.
- GST Invoice Format: Mandatory Fields and a Free MakerWhat a valid GST invoice must show: GSTIN, invoice number, HSN or SAC, place of supply, CGST and SGST or IGST, explained simply with a free way to make one.