Formulas
Final price = original price × (1 − discount ÷ 100). Savings = original price − final price. Discount % = (savings ÷ original price) × 100.
Discount calculator
Enter the original price and the discount to see the final price and how much you save.
Example
$200 item with 30% off: final price = $140, you save $60. Or: paid $140 for a $200 item — the discount was 30%.
When to use this calculator
Useful for comparing sale prices, calculating the real value of a discount at online stores, checking whether a coupon is worth using, working out bulk purchase discounts, and verifying subscription or service discounts.
Frequently asked questions
How do I calculate a discounted price?
Multiply the original price by (1 − discount ÷ 100). Example: $200 with 15% off = $200 × 0.85 = $170.
How do I find the discount % from the price I paid?
Subtract the price paid from the original, divide by the original, and multiply by 100. Example: paid $170 of $200 = (30 ÷ 200) × 100 = 15%.
Do stacked discounts add up?
No. Two 10% discounts do not equal 20%. The second discount applies to the already reduced price: 10% + 10% = 19% total.
How do I calculate cashback as a percentage?
Same formula: 5% cashback on a $300 purchase = $15 back.
How do I calculate discount on top of discount?
Use the 'I know the final price' mode. Apply the first discount, use the result as the new original price, and repeat for the second discount.
Can I use this for tax or shipping calculations?
For simple percentage-based tax (e.g., 10% tax on $50 = $5), yes — just enter a negative 'discount' of −10%. For complex progressive tax systems, use a dedicated tax calculator.
How to use
- Choose the mode: if you have the discount percentage, or if you already know the final price paid.
- Enter the original price and the discount (or the final price).
- The discounted price, savings, and percentage appear instantly.