20% Off Calculator
Enter any price below — see the sale price and exact savings after a 20% discount.
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You pay $80.00
You save $20.00
20% off — the go-to promotional discount
Twenty percent off is arguably the most popular promotional discount in e-commerce and retail. It's the default Cyber Monday markdown, the standard coupon tier, and the threshold many shoppers use to decide whether a deal is worth acting on.
At 20% off you pay exactly four-fifths (80%) of the original price. A quick mental shortcut: double the price, drop a zero, that's the saving. $75 item — double is $150, drop a zero = $15 saved, sale price $60. For any price, use the calculator above.
How to calculate 20% off
Multiply the original price by 0.80 (which is 1 − 20/100):
Sale Price = Original × 0.80
For example, 20% off $75:
$75 × 0.80 = $60.00. You save
$15.00.
20% off quick-reference table
| Original price | Sale price (20% off) | You save |
|---|---|---|
| $10.00 | $8.00 | $2.00 |
| $20.00 | $16.00 | $4.00 |
| $25.00 | $20.00 | $5.00 |
| $50.00 | $40.00 | $10.00 |
| $75.00 | $60.00 | $15.00 |
| $100.00 | $80.00 | $20.00 |
| $150.00 | $120.00 | $30.00 |
| $200.00 | $160.00 | $40.00 |
| $250.00 | $200.00 | $50.00 |
| $500.00 | $400.00 | $100.00 |