Discount Calculator
Use the discount calculator to find out the discounted price and savings of your product or service. Enter the original price and discount percentage, and the calculator will give you an accurate estimate of how much the discount affects the price and how much money you save. This way, you can make better purchasing decisions and manage your budget more efficiently.
Sale price:
Savings:
How Does the Discount Calculator Work?
The discount calculator instantly shows you how much money you save on any purchase. Enter the original price and the discount percentage, and the tool calculates both the sale price and the dollar amount you save.
Discount Formulas
Sale Price = Original Price × (1 − Discount % ÷ 100)
Savings = Original Price × (Discount % ÷ 100)
To find the original price from a sale price:
Original Price = Sale Price ÷ (1 − Discount % ÷ 100)
To find the discount percentage between two prices:
Discount % = ((Original − Sale) ÷ Original) × 100
Worked Example
A jacket is originally priced at $120 and is on sale for 25% off:
- Savings = $120 × 0.25 = $30
- Sale Price = $120 − $30 = $90
If you also have a 10% coupon on top of the sale price:
- Additional savings = $90 × 0.10 = $9
- Final price = $90 − $9 = $81
- Total savings = $120 − $81 = $39 (effective discount: 32.5%, not 35%)
This demonstrates why stacked discounts are not additive — they compound sequentially.
Common Discount Quick-Reference Table
| Original Price | 10% Off | 20% Off | 25% Off | 30% Off | 50% Off |
|---|---|---|---|---|---|
| $25 | $22.50 | $20.00 | $18.75 | $17.50 | $12.50 |
| $50 | $45.00 | $40.00 | $37.50 | $35.00 | $25.00 |
| $75 | $67.50 | $60.00 | $56.25 | $52.50 | $37.50 |
| $100 | $90.00 | $80.00 | $75.00 | $70.00 | $50.00 |
| $200 | $180.00 | $160.00 | $150.00 | $140.00 | $100.00 |
| $500 | $450.00 | $400.00 | $375.00 | $350.00 | $250.00 |
Major U.S. Sale Events
Timing your purchases around major sales can save hundreds or even thousands of dollars per year. Here are the biggest discount events on the American shopping calendar:
| Sale Event | When | Typical Discounts |
|---|---|---|
| Presidents' Day Sales | February | 20–40% off furniture, mattresses |
| Memorial Day Sales | Late May | 25–50% off appliances, outdoor gear |
| Amazon Prime Day | July | 20–60% off electronics, household |
| Labor Day Sales | Early September | 20–40% off seasonal items |
| Black Friday | Late November | 30–70% off everything |
| Cyber Monday | Monday after Thanksgiving | 25–50% off online deals |
| After-Christmas Sales | December 26–31 | 50–75% off holiday merchandise |
Smart Shopping Tips
- Compare unit prices — A 20% discount on a larger size is not always better than a smaller size at full price. Use a Unit Price Calculator to compare.
- Set price alerts — Browser extensions like Honey or CamelCamelCamel track price history and notify you of drops.
- Watch for "fake" discounts — Some retailers inflate original prices before a sale. The FTC requires that the "original price" reflect a genuine former selling price.
- Factor in sales tax — A $100 item at 25% off costs $75 before tax. With 8% sales tax, your total is $81. Use a Sales Tax Calculator to check.
- Consider price matching — Many major retailers (Target, Best Buy, Walmart) offer price-matching policies.
Markup vs. Discount
It is important to understand that a 50% markup followed by a 50% discount does not bring you back to the original price:
- Original cost: $100
- After 50% markup: $100 × 1.50 = $150
- After 50% discount: $150 × 0.50 = $75
The final price is actually 25% below the original, not equal. This asymmetry matters for both shoppers comparing deals and business owners setting prices.
Frequently Asked Questions
How do I calculate a discount?
Multiply the original price by the discount percentage divided by 100 to get the savings amount. Subtract that from the original price for the sale price. Example: 20% off $50 = $50 × 0.20 = $10 savings → $40 final price.
What is 30% off $80?
30% of $80 = $24 savings. The discounted price is $80 − $24 = $56.
How do I find the original price from a discounted price?
Divide the sale price by (1 − discount/100). For example, if you paid $70 after a 30% discount: $70 ÷ 0.70 = $100 original price.
How do I calculate the discount percentage?
Subtract the sale price from the original price, divide by the original price, then multiply by 100. Formula: ((Original − Sale) ÷ Original) × 100.
Can I stack multiple discounts?
Stacked discounts are applied sequentially, not added together. A 20% discount followed by a 10% discount gives a combined discount of 28%, not 30%. Each discount is applied to the already-reduced price.
Related Tools
- Sales Tax Calculator — Calculate sales tax on any purchase
- Percentage Calculator — Solve any percentage problem
- Unit Price Calculator — Compare prices per unit across products
- VAT Calculator — Add or remove value-added tax from prices
- Tip Calculator — Calculate tips and split bills