Enter the price and discount
yen
%
Sale price
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How to use the discount calculator
"30% off" or "¥500 off" — it is hard to work out the final price in your head. Enter the original price and the discount, and this tool shows the sale price, savings and effective discount rate together.
How to use it
Enter the original price, choose the discount type (% off or amount off) and type the value. When you choose amount off, the tool also shows what percentage that saving represents, so you can compare offers.
Discount vs points back
"20% off" means you pay 80% now, while "20% points back" means you pay 100% and get points worth 20% for later. Compare by the effective rate. The percentage calculator is also handy for ratios.
Frequently asked questions
How is the sale price calculated?+
For a percentage discount, sale price = original × (1 − rate). For a fixed discount, sale price = original − amount.
The savings and effective rate are also shown.
The savings and effective rate are also shown.
Is 20% off the same as 20% points back?+
No, the effective saving differs. 20% off means you pay 80% now; 20% points back means you pay 100% and receive points worth 20% for next time.
The discount is cheaper at the register.
The discount is cheaper at the register.
What is the effective discount rate?+
It is the discount amount as a percentage of the original price.
It tells you what percentage a fixed amount-off actually represents.
It tells you what percentage a fixed amount-off actually represents.
How is rounding handled?+
This tool rounds to the nearest whole unit for display.
Real stores may round down or handle fractions differently.
Real stores may round down or handle fractions differently.
Are my inputs stored?+
No. All calculation happens in your browser, and the values you enter are never sent to or stored on a server.
Formulas
・Sale price (% off) = original × (1 − rate)
・Sale price (amount off) = original − amount
・Effective rate = discount ÷ original × 100
・Displayed values are rounded to the nearest unit (store rounding may differ)
・Sale price (% off) = original × (1 − rate)
・Sale price (amount off) = original − amount
・Effective rate = discount ÷ original × 100
・Displayed values are rounded to the nearest unit (store rounding may differ)
Please note
This site does not represent any store or business and does not guarantee the accuracy of the results. Rounding, stacking and coupon eligibility vary by store. Confirm the actual price at the register and the store's conditions.
This site does not represent any store or business and does not guarantee the accuracy of the results. Rounding, stacking and coupon eligibility vary by store. Confirm the actual price at the register and the store's conditions.