Calculate discount instantly
Choose a mode and enter values.
Result
800.00
Final price
You save
200.00
Discount
20%
Calculate discounts
in any direction.
Find the final price after a discount, work backwards from a sale price to find the original, or calculate the discount percentage between two prices. Three modes, instant results.
Step by step
How to use the Discount Calculator
Choose a mode
Select what you want to find: final price, original price, or discount percentage.
Enter the values
Fill in the two values you know — original price, discount %, or final price depending on the mode.
Read the result
Instantly see the calculated value along with the savings amount and discount percentage.
Compare offers
Switch between modes to verify a retailer's claimed discount or compare two different offers.
Why use this calculator?
Shopping & sales
Know exactly how much you pay and how much you save before adding an item to your cart. Works for any sale, clearance, or coupon discount.
Retail & pricing
Retailers and sellers can verify that a listed discount percentage matches the price difference, or calculate the correct sale price for a target discount.
Price comparison
Compare two offers with different original prices and discount percentages by calculating the final price and savings for each.
How discount is calculated — three formulas
Discount calculations appear in everyday life more than almost any other type of percentage arithmetic — sale prices, coupon codes, bulk pricing, and negotiated rates all require the same core formula. The challenge is that the same discount can be presented in three different ways: as a percentage off, as a final price, or as a savings amount. This calculator handles all three directions so you always have the complete picture.
A common mistake when evaluating successive discounts is to add the percentages. A 20% discount followed by a further 10% discount is not 30% off — it is 28% off, because the second discount is applied to the already-reduced price. For any two successive discounts D1 and D2, the effective rate is: 1 − (1 − D1/100) × (1 − D2/100). This matters when comparing a single 30% discount against a '20% off, then 10% off' offer — the single discount is actually better.
Formula
Final Price = Original × (1 − Rate/100) | Original = Final ÷ (1 − Rate/100) | Rate % = ((Original − Final) ÷ Original) × 100
To find the final price: multiply the original by (1 − discount/100). To reverse-calculate the original from a discounted price: divide the final price by (1 − discount/100). To find the discount percentage: subtract the final from the original, divide by the original, and multiply by 100.
Worked example
Example 1 — Final price: Original ₹2,500, discount 30%. Final = ₹2,500 × 0.70 = ₹1,750. Savings = ₹750. Example 2 — Original price: Final ₹1,750, discount 30%. Original = ₹1,750 ÷ 0.70 = ₹2,500. Example 3 — Discount %: Original ₹2,500, final ₹1,750. Rate = ((2,500 − 1,750) ÷ 2,500) × 100 = 30%.
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