Free Discount Calculator - Calculate Sale Prices & Savings
Calculate discounts instantly! Enter the original price and discount percentage to find the sale price and how much you save. Perfect for shopping, retail pricing, and financial planning. See your savings in seconds.
What Is a Discount Calculator?
A discount calculator computes the final price after applying a percentage discount to an original price. It instantly shows you:
- The sale/discounted price
- How much money you save
- The effective price reduction
How to Use
- Enter original price - The regular/full price
- Enter discount percentage - The percentage off (e.g., 20%)
- See results instantly - View sale price and savings
- Compare deals - Check multiple scenarios
Key Features
- Instant calculation - Real-time results as you type
- Dual output - See both final price and savings amount
- Multiple calculations - Compare different discount scenarios
- Currency-flexible - Works with any currency
- Mobile-friendly - Calculate while shopping
- No signup required - Use immediately
Discount Formula
The calculation is straightforward:
Savings = Original Price × (Discount Percentage / 100)
Sale Price = Original Price - Savings
Example
- Original Price: $100
- Discount: 25%
- Savings: $100 × 0.25 = $25
- Sale Price: $100 - $25 = $75
Common Discount Scenarios
| Original Price | Discount | Sale Price | You Save |
|---|---|---|---|
| $50 | 10% | $45.00 | $5.00 |
| $100 | 20% | $80.00 | $20.00 |
| $200 | 25% | $150.00 | $50.00 |
| $500 | 30% | $350.00 | $150.00 |
| $1000 | 40% | $600.00 | $400.00 |
Use Cases
Shopping & Retail
- Sales shopping - Calculate actual savings
- Comparison shopping - Which deal is better?
- Coupon stacking - Calculate combined discounts
- Price verification - Confirm advertised discounts
- Budget planning - Know total cost before buying
Business & Retail Management
- Pricing strategy - Set competitive prices
- Sale planning - Determine discount levels
- Margin analysis - Understand profit impact
- Promotional pricing - Calculate sale tags
- Clearance pricing - Set final markdown prices
Financial Planning
- Bulk purchase decisions - Is the discount worth it?
- Subscription savings - Annual vs. monthly pricing
- Early payment discounts - Invoice discount analysis
- Investment in sales - ROI on discounted purchases
Smart Shopping Tips
Calculating True Savings
Always consider:
- Is this something you actually need?
- What's the normal (non-inflated) price?
- Are there additional costs (shipping, taxes)?
- Could you find it cheaper elsewhere even without discount?
Stacking Discounts
When discounts stack, they apply sequentially:
- $100 item with 20% off then 10% off
- First: $100 × 0.80 = $80
- Then: $80 × 0.90 = $72
- Total discount: 28% (not 30%)
Comparing Different Discounts
| Scenario | Better Deal |
|---|---|
| 30% off $50 vs 25% off $60 | 30% off $50 ($35 vs $45) |
| 20% off vs $15 flat off $50 | 20% off ($40 vs $35) - depends on price |
| Buy 2 get 1 free vs 33% off all | Same if buying 3+ items |
Understanding Discount Psychology
Anchor Pricing
Retailers often show "original" prices to make discounts seem larger. The "30% off" badge works because you compare to the anchor price.
Threshold Effects
A 50% discount feels dramatically different from 40%, even if dollar savings are similar for lower-priced items.
Perceived Value
Percentage discounts work better for higher-priced items, while flat dollar amounts ("$20 off") work better for lower-priced items.
Advanced Discount Calculations
Finding Original Price from Sale Price
If you know the sale price and discount percentage:
Original Price = Sale Price / (1 - Discount Percentage / 100)
Finding Discount Percentage
If you know original and sale prices:
Discount % = ((Original - Sale) / Original) × 100
Multiple Sequential Discounts
For discounts A% then B%:
Final Price = Original × (1 - A/100) × (1 - B/100)
Total Discount % = 100 × (1 - (1 - A/100) × (1 - B/100))
Frequently Asked Questions
How do I calculate 20% off?
Multiply the price by 0.20 to find savings, then subtract from original. Or multiply by 0.80 for the final price directly.
Are stacked discounts better than a single larger discount?
Not necessarily. Two 10% discounts = 19% total discount, not 20%. A single 20% discount is better.
Should I always buy when there's a big discount?
Only if you were already planning to buy it. A 50% discount on something you don't need is still 50% more than you should spend.
How do stores still make profit on deep discounts?
Options include: higher initial markups, loss leaders to attract customers, clearance of old inventory, or volume sales compensating for lower margins.
What's the difference between "percent off" and "percent of"?
- 20% OFF means you pay 80% of the price
- 20% OF means you pay 20% of the price (80% off)