Percent Off Calculator
Calculate sale prices and savings instantly. Enter the original price and discount percentage to see your final price. Works on any device — no app download needed.
About This Tool
Shopping a sale and want to know exactly how much you'll pay? Our free percent off calculator shows you the final price and total savings in one click. Just enter the original price and the discount percentage — the math is done instantly.
Use it while shopping online, comparing deals, or budgeting for a big purchase. Whether it's 10% off or 75% clearance, you'll know exactly what you're paying before you get to the register.
How to Use
- Enter the original price
- Enter the percent off (discount)
- Press Calculate or hit Enter
- See your final price and savings
Common Discounts
- 10% off - Small discount
- 20% off - Standard sale
- 25% off - Good deal
- 50% off - Half price
- 75% off - Clearance
Quick Reference
$100 - 20% off
= $80
$50 - 30% off
= $35
$200 - 50% off
= $100
How to Calculate Percent Off (Formula)
The formula for calculating a percentage discount is straightforward:
Final Price = Original Price × (1 - Discount% ÷ 100)
For example, to find 30% off $150: $150 × (1 - 30/100) = $150 × 0.70 = $105. You save $45.
Frequently Asked Questions
How do I calculate percent off?
Multiply the original price by the discount percentage, then subtract from the original. For example: $100 × 20% = $20 off, so the final price is $80. Or use the formula: Final Price = Original Price × (1 - Discount% / 100).
What's the difference between percent off and percent of?
Percent off is the discount amount removed from the price. Percent of is what you actually pay. They always add up to 100%. So 20% off means you pay 80% of the original price, and 30% off means you pay 70%.
How do I calculate the original price from a sale price?
Divide the sale price by (1 - discount/100). For example, if an item is $60 after a 25% discount: $60 ÷ 0.75 = $80 original price.
Can I stack multiple discounts?
When stacking discounts, each discount applies to the already-reduced price, not the original. For example, 20% off then 10% off a $100 item: first discount gives $80, second discount gives $72. This is NOT the same as 30% off ($70).
Is this percent off calculator free?
Yes, this calculator is completely free. No sign-up, no download — just enter the original price and discount percentage to see your savings instantly.
How do I calculate what percentage I'm saving?
Subtract the sale price from the original price to get the discount amount. Then divide the discount by the original price and multiply by 100. For example: original $80, sale $60. Discount = $20. Percentage = ($20 ÷ $80) × 100 = 25% off.