Discount Calculator
Calculate the final price after a percentage or flat-amount discount — solve for any field.
Calculated locally in your browser. Nothing you enter is uploaded or stored.
- Free — no signup, no account, no watermark
- Runs entirely in your browser — nothing is uploaded to a server
- Works on mobile, tablet and desktop
- Instant — results appear as soon as you enter your input
Why this is private
- Calculated locally in your browser. Nothing you enter is uploaded or stored.
- Open your browser's DevTools → Network tab while using this tool — you won't see a request carrying your input, because it never leaves your device.
- Nothing you enter is uploaded to a server or shared with us — the processing happens entirely on your device.
Overview
Calculates the final price after applying a percentage or flat-amount discount, and how much you save — solve for the final price, the discount itself, or the original price, depending on which two you already know.
How to use it
- 1Choose "Percentage off" or "Fixed amount off."
- 2Choose which field to solve for — Final price, the discount, or Original price.
- 3Enter the other two known values.
- 4View the savings and result.
Formula
Final price (percentage)
Final = Price × (1 − discount / 100)
Final price (fixed amount)
Final = Price − amount off
Frequently asked questions
What people use it for
Check a sale priceConfirm what '30% off' actually comes to at the till.
Compare two offersSwitch between "Percentage off" and "Fixed amount off" to see whether '25% off' or 'flat ₹500 off' is the better deal on the same price.
Work backwards from a sale priceKnow the original and final price but not the advertised discount? Solve for "Discount" to check it.
Find the original price from a discounted tagKnow the final price and the discount rate or flat amount? Solve for "Original price" to recover it.
Budget for a planned purchaseEstimate the cost of an item you're waiting to buy on discount.
Related guides
- Reduce EMI or reduce tenure after a part payment: which saves more?Both lower your total interest, but not by the same amount. Here's the trade-off, a worked example, and how to compare your own loan.
- How to calculate a home loan foreclosure amountOutstanding principal, accrued interest, charges and tax — what goes into a loan foreclosure (pre-closure) figure, and why the bank's number can differ.
- SIP vs. lumpsum: what the math actually saysSystematic investing and lump-sum investing solve different problems. Here's how to reason about which one fits your situation.
- How to calculate EMI (and why the formula looks so intimidating)A plain-English walkthrough of the EMI formula, what each variable means, and a worked example you can check by hand.
Related tools
All finance toolsPercentage CalculatorCalculate percentages, percentage of a value, percentage change, and more.GST CalculatorAdd or remove GST from an amount, with the correct CGST+SGST or IGST split.EMI CalculatorCalculate your monthly EMI, full amortization schedule, and part-payment or foreclosure savings.Loan CalculatorCompare loan repayment options, and see how an extra payment speeds up payoff.
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Discount Calculator