Free Discount Calculator: Find Your Sale Price Instantly
Our free discount calculator instantly shows you the final price after applying any percentage discount, plus exactly how much money you save. Whether you are shopping during Black Friday sales, comparing Cyber Monday deals, checking if a clearance rack price is correct, or calculating wholesale discounts for your business, this tool gives you instant answers.
Simply enter the original price and the discount percentage to see the sale price and your savings. The calculator handles any discount percentage from 1% to 99% and works with any currency. No signup, no download — just fast, accurate discount math.
Quick Discount Reference: Common Percentage-Off Values
| Original Price | 10% Off | 15% Off | 20% Off | 25% Off | 30% Off | 40% Off | 50% Off |
|---|---|---|---|---|---|---|---|
| $10 | $9.00 | $8.50 | $8.00 | $7.50 | $7.00 | $6.00 | $5.00 |
| $20 | $18.00 | $17.00 | $16.00 | $15.00 | $14.00 | $12.00 | $10.00 |
| $25 | $22.50 | $21.25 | $20.00 | $18.75 | $17.50 | $15.00 | $12.50 |
| $30 | $27.00 | $25.50 | $24.00 | $22.50 | $21.00 | $18.00 | $15.00 |
| $50 | $45.00 | $42.50 | $40.00 | $37.50 | $35.00 | $30.00 | $25.00 |
| $75 | $67.50 | $63.75 | $60.00 | $56.25 | $52.50 | $45.00 | $37.50 |
| $100 | $90.00 | $85.00 | $80.00 | $75.00 | $70.00 | $60.00 | $50.00 |
| $150 | $135.00 | $127.50 | $120.00 | $112.50 | $105.00 | $90.00 | $75.00 |
| $200 | $180.00 | $170.00 | $160.00 | $150.00 | $140.00 | $120.00 | $100.00 |
| $300 | $270.00 | $255.00 | $240.00 | $225.00 | $210.00 | $180.00 | $150.00 |
| $500 | $450.00 | $425.00 | $400.00 | $375.00 | $350.00 | $300.00 | $250.00 |
| $1,000 | $900.00 | $850.00 | $800.00 | $750.00 | $700.00 | $600.00 | $500.00 |
Understanding Double & Stacked Discounts
Many stores offer stacked discounts — such as "take an extra 20% off already reduced items." A critical mistake shoppers make is adding the percentages together. Two discounts of 20% and 10% do NOT equal 30% off. Here is why:
| First Discount | Second Discount | What You Might Think | Actual Total Discount | Final Price |
|---|---|---|---|---|
| 10% off | 10% off | 20% off = $80 | 19% off | $81.00 |
| 20% off | 10% off | 30% off = $70 | 28% off | $72.00 |
| 20% off | 20% off | 40% off = $60 | 36% off | $64.00 |
| 25% off | 15% off | 40% off = $60 | 36.25% off | $63.75 |
| 30% off | 20% off | 50% off = $50 | 44% off | $56.00 |
| 40% off | 20% off | 60% off = $40 | 52% off | $48.00 |
| 50% off | 20% off | 70% off = $30 | 60% off | $40.00 |
| 50% off | 50% off | 100% off = $0 | 75% off | $25.00 |
Major Shopping Sales Calendar 2025
| Sale Event | When | Typical Discount Range | Best For |
|---|---|---|---|
| New Year Sales | January 1-15 | 20-50% off | Winter clothing, electronics |
| Valentine's Day | February 7-14 | 15-30% off | Jewelry, flowers, dining |
| Presidents' Day (US) | Third Mon in February | 20-40% off | Mattresses, appliances, furniture |
| Easter Sales | March-April | 15-30% off | Spring clothing, chocolate, décor |
| Memorial Day (US) | Last Mon in May | 20-40% off | Mattresses, appliances, outdoor |
| Amazon Prime Day | July | 20-50%+ off | Electronics, Amazon devices, tech |
| Back to School | August | 20-40% off | Laptops, supplies, clothing |
| Labor Day (US) | First Mon in September | 20-40% off | Appliances, mattresses, fashion |
| Singles' Day (11.11) | November 11 | 30-70% off | Online shopping (biggest globally) |
| Black Friday | Fourth Fri in November | 30-70% off | Electronics, fashion, everything |
| Cyber Monday | Monday after Black Friday | 30-60% off | Online deals, tech, subscriptions |
| Christmas Sales | December 20-25+ | 30-50% off | Gifts, decorations, fashion |
| After-Christmas / Boxing Day | December 26+ | 40-70% off | Clearance, leftover stock |
Frequently Asked Questions
How do I calculate what percentage off I am getting?▼
Use this formula: Discount Percentage = [(Original Price - Sale Price) ÷ Original Price] × 100. Example: item originally $80, on sale for $56. Discount = ($80-$56)/$80 × 100 = $24/$80 × 100 = 30% off.
How do I find the original price from the sale price?▼
Use this formula: Original Price = Sale Price ÷ (1 - Discount%/100). Example: if an item is $60 after 25% off, the original price was $60 ÷ 0.75 = $80.
Should I calculate discount before or after tax?▼
Discounts are almost always applied before tax. The correct order is: Start with original price → apply discount to get sale price → then add sales tax to the discounted price. This means you pay tax only on what you actually spend, not on the original price.
Is 20% off twice the same as 40% off?▼
No! Two separate 20% discounts result in a 36% total discount, not 40%. The first 20% off $100 = $80. The second 20% off $80 = $64. That is $36 saved out of $100, or 36% off, not 40%. Sequential discounts always yield less than the sum would suggest.
How can I tell if a sale is actually a good deal?▼
Compare the sale price to the product's historical pricing (use tools like CamelCamelCamel for Amazon). Check if the store inflated the "original price" before the sale. Compare per-unit or per-ounce prices for bulk items. Look at competitor pricing. A genuine 30%+ discount on a product at its real regular price is typically a good deal.