Discount Stack Savings Calculator
Combine two discounts and see the real total off.
Enter your values
ⓘ Live results
Results
- Final price
- $72
- Combined discount
- 28%
- Total saved
- $28
- Naive sum (wrong)
- 30%
Quick answer
Stacked discounts multiply, so two 20% discounts give 36% off total, not 40%.
final price = price x (1 - d1) x (1 - d2)
How to use the Discount Stack Savings Calculator
- 1Enter the original price before any discount.
- 2Enter both discount percentages in the order they are applied.
- 3The combined discount is always less than simply adding the two percentages.
Worked example
Using the values the calculator loads with:
Inputs
- Original price100 $
- First discount20 %
- Second discount10 %
Results
- Final price$72
- Combined discount28%
- Total saved$28
- Naive sum (wrong)30%
Frequently asked questions
Does order matter?
No — multiplying two percentage discounts gives the same result regardless of order.
Can I stack three discounts?
Yes, keep multiplying by (1 - each discount) in sequence.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.