Discount Calculator — Amount Off
The fixed-dollar coupon view — "$10 off", "$50 off your order", "$25 voucher". Enter the original price and the dollar amount off and it returns the sale price plus the effective percentage that coupon represents, so you can judge how good a flat discount really is. This page opens in amount mode with a $20 example and caps the discount at the price so the total never drops below zero.
Discount & sale price
Sale price
$60.00
You save $20.00 (25% off)
Breakdown
Plain arithmetic on the price and discount you enter; sales tax, if added, is applied to the discounted price. An estimate of a checkout total, not financial advice.
What a flat coupon is really worth
A fixed-dollar coupon is worth more, proportionally, on a cheaper item: $20 off a $40 purchase is 50% off, while the same $20 off a $400 purchase is only 5%. The effective-percentage readout makes that visible so you can compare a flat coupon against a percentage sale on the same item.
Many flat coupons carry a minimum spend ("$20 off orders over $100"). The calculator does not enforce that condition — it assumes the coupon applies — so check the terms, then use the effective percentage to decide whether hitting the minimum is worth it.
Questions
- How do I find the percentage of a dollar coupon?
- Divide the dollars off by the original price and multiply by 100. The calculator shows this effective percentage automatically in amount mode.
- What if the coupon is bigger than the price?
- The saving is capped at the original price, so the sale price is zero rather than negative. Any leftover coupon value is not carried over.