Free Discount Calculator Online
Find the discounted price from a percentage off, or calculate what discount was applied. Ideal for shopping, sales and markdowns.
About the Discount Calculator
This free online discount calculator has two modes. In Find Discounted Price mode, enter the original price and the discount percentage to instantly see how much you save and what you actually pay. In Find Discount % mode, enter the original price and the sale price to calculate what percentage discount was applied — useful for comparing deals across different products or stores.
All calculations happen in your browser. No data is sent to any server, and your inputs are automatically saved so they are ready for your next visit.
How to Use the Discount Calculator
Choose a Mode
Select Find Discounted Price to calculate the sale price from a percentage off, or Find Discount % to reverse-calculate the percentage from two prices.
Enter the Prices
Type the original (marked) price and either the discount percentage or the actual sale price depending on the selected mode.
Click Calculate
Hit the calculate button to see the savings amount and the final price (or the applied discount percentage).
Compare & Decide
Use the results to compare deals and make an informed purchasing decision.
Key Features
- Two-way calculation – Find discounted price or find what discount % was applied.
- Instant results – Calculations run entirely in your browser with no page reload.
- Auto-save – Your last inputs are saved in localStorage and restored on your next visit.
- 100% private – No data leaves your device; no account required.
- Mobile friendly – Works seamlessly on phones, tablets and desktops.
Frequently Asked Questions
Final Price = Original Price × (1 − Discount% / 100). For example, a 20% discount on ₹2,000: Final = 2000 × 0.80 = ₹1,600. Savings = ₹2,000 − ₹1,600 = ₹400.
Discount% = ((Original − Sale) / Original) × 100. For example, if something costs ₹2,000 and is sold for ₹1,500: Discount% = ((2000−1500) / 2000) × 100 = 25%.
Yes. The ₹ symbol is for display only. The mathematics works identically for any currency — simply enter your values and ignore the currency symbol.
Yes. Your prices and selected mode are stored in your browser's localStorage and are pre-filled the next time you visit. Nothing is transmitted to any server.