Discount & Sale Price Calculator

Calculate the final sale price after a discount, find the original price given a sale price and discount, or work out what percentage discount was applied.

discount-calculator.tool
Enter values to calculate.

Three Ways to Use This Calculator

Sale Price mode is the most common: enter the original price and discount percentage to see exactly how much you save and what you pay. Original Price mode works backwards — if you know an item is sold at ₦4,000 after a 20% discount, it tells you the original price was ₦5,000. Discount % mode calculates what percentage discount was applied given the original and sale prices.

Comparing Discounts Across Shops

When comparing prices across different shops with different discount structures, always compare the final price — not the percentage. A 50% off ₦20,000 item costs the same as a 25% off ₦15,000 item only if the original prices differ. This calculator lets you check quickly.

Frequently Asked Questions

No. Buy-two-get-one-free is a 33.3% discount on the total (you pay for 2, get 3). A straight 30% discount is applied to each unit. Buy-two-get-one-free is better value, but only if you actually want three units.
Multiply the price by 0.20 to get the discount amount, then subtract from the original. Example: 20% off ₦15,000 = ₦15,000 × 0.20 = ₦3,000 discount, final price ₦12,000. Alternatively, multiply by 0.80 (1 - 0.20) directly: ₦15,000 × 0.80 = ₦12,000.
It means some items are discounted by up to 70% — usually only a few selected items. Most items in the sale will have smaller discounts. The headline percentage applies to the most heavily discounted items, not the average or typical discount across the sale.
Divide the sale price by (1 - discount percentage). Example: an item sells for ₦8,500 after a 15% discount. Original price = ₦8,500 / (1 - 0.15) = ₦8,500 / 0.85 = ₦10,000. Use the Original Price mode in this calculator to do this automatically.
No — stacked discounts are applied sequentially, not additively. A 20% discount followed by an additional 10% discount is NOT 30% off. It is 20% off, then 10% off the reduced price. ₦10,000 after 20% = ₦8,000; after another 10% = ₦7,200. That is 28% total, not 30%.

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