Free tools

Discount Calculator

Calculate the sale price and money saved for any discount percentage — free online discount calculator.

What is the sale price after a discount?

minus % discount
Sale price: £80.00
You save: £20.00

What discount % gets me to a target price?

Original Target
Discount needed: 25%

What was the original price before the discount?

Sale price after % off
Original price: £100.00

Discount Calculator

Three discount calculations in one tool: find the sale price after a percentage discount, work out what discount percentage reaches a target price, or reverse-calculate the original price from a sale price.

How to calculate a discounted price

Sale price = original price × (1 − discount% ÷ 100). For example, £100 with 20% off: £100 × 0.80 = £80.

How to find the original price before a discount

Original price = sale price ÷ (1 − discount% ÷ 100). If an item is £80 after 20% off: £80 ÷ 0.80 = £100.

Common uses

  • Checking how much you save in a sale before buying
  • Comparing prices across stores with different discount rates
  • Setting a target sale price and calculating the required markdown
  • Verifying a retailer's advertised "was / now" pricing

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