Calculations & UnitsLast updated: 2026-09-13

Discount Calculator

Calculate final price and savings for one or two percentage discounts. Stack 30% off with 10% off to see the true 37% effective discount.

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List price

Discount (%)

Additional discount (optional, %)

The additional percentage applies to the already-discounted price. Leave it empty for a single discount.

Effective discount

Savings

Final price

Results display at most two decimal places, without intermediate rounding. Fixed-amount coupons, reward points and store-specific rounding are not included.

Example: 30% off plus an extra 10% off

For a price of 5,000, apply 30% off and then 10% off: 5,000 × 0.7 × 0.9 = 3,150. You save 1,850, an effective discount of 37%.

See the double discount formula and chart →

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How to use

1
Enter list price
Enter the original price.
2
Set discount rates
Enter a percentage. For a double discount, enter the additional percentage too; otherwise leave it empty.
3
Check result
See the effective discount rate, total savings and final price.

Features

Single and double percentage discounts
Automatic effective rate, savings and final price
Decimal prices and percentages supported
Inputs are processed in your browser

Use cases

Check sale prices

See the price after a 30% discount.

Add a percentage coupon

Apply an extra 10% off a sale price and see total savings relative to the original price.

Calculate wholesale prices

Compute unit prices after a percentage discount from a supplier.

Details

Apply a sale and a second percentage coupon in sequence. The additional discount applies to the price left after the first discount.

Final price = original price × (1 − first rate / 100) × (1 − additional rate / 100). An empty additional rate is treated as zero.

Calculations keep unrounded values between steps and display at most two decimal places. Fixed-amount coupons, points and store-specific tax or rounding rules are not included.

FAQ

What is 30% off followed by another 10% off?

It is a 37% total discount. For an original price of 5,000, calculate 5,000 × 0.7 × 0.9 = 3,150.

Can I calculate just one discount?

Yes. Leave the additional discount empty or enter 0 to apply only the first percentage.

Can I enter fixed-amount coupons or points?

This tool accepts percentage discounts. It has no fixed-amount coupon or reward points field.

How are fractions handled?

The calculation does not round between steps. Results display at most two decimal places; stores that round at each step may produce different totals.