onlinecalculator.me

Free discount calculator

Enter a price and a discount — either as a percentage or a fixed dollar amount — to see exactly how much you save and what you pay.

Discount type
You save
$—
Final price
$—
Discount
—%
About this calculator

How it works

Percent-off mode:

  • Savings = price × (discount% ÷ 100)
  • Final = price − savings

Dollar-off mode:

  • Final = price − discount amount
  • Discount% = savings ÷ price × 100

Worked example

$80 item at 25% off:

  • Savings = 80 × 0.25 = $20
  • Final price = 80 − 20 = $60

$200 item with $30 off:

  • Final price = 200 − 30 = $170
  • Effective discount = 30 ÷ 200 = 15%

Frequently asked

How is a percent-off discount calculated?
Savings = original price × (discount% ÷ 100). Final price = original − savings.
How is a dollar-off discount calculated?
Final price = original − discount amount. Discount% = discount ÷ original × 100.
What if the discount is larger than the price?
The final price floors at $0 — it cannot go negative. The discount amount caps at the original price.
How is the effective discount percentage shown?
In percent-off mode the percentage you enter is shown directly. In dollar-off mode the calculator derives the equivalent percentage from the dollar savings divided by the original price.
How do I share my calculation?
Click "Share with my numbers" to copy a URL that restores all your inputs.