Discount Calculator
What is a Discount Calculator?
This calculator takes an original price and a discount percentage, then instantly shows you the sale price and the exact amount you save. No mental math needed while standing in a store aisle.
How to Calculate Discounts
- Enter the Original Price — the full price before the discount
- Enter the Discount Rate (%) — the percentage off (e.g., 25 for 25% off)
- Results appear instantly:
| Result | What it shows |
|---|---|
| Discounted Price | The final price you actually pay |
| Amount Saved | How much money the discount saves you |
Good Examples
Example 1: Seasonal Clothing Sale
A jacket originally costs $120 and is marked 30% off.
- Original Price:
120 - Discount Rate:
30 - Discounted Price: $84.00
- Amount Saved: $36.00
Example 2: Online Coupon Code
You have a 15% coupon for a $200 online order.
- Original Price:
200 - Discount Rate:
15 - Discounted Price: $170.00
- Amount Saved: $30.00
Example 3: Black Friday Electronics
A laptop originally priced at $1,200 is 35% off.
- Original Price:
1200 - Discount Rate:
35 - Discounted Price: $780.00
- Amount Saved: $420.00
Example 4: Grocery Store Deal
A $6.50 item is marked down 20%.
- Original Price:
6.50 - Discount Rate:
20 - Discounted Price: $5.20
- Amount Saved: $1.30
Understanding Double Discounts
When stores offer “an extra percentage off the sale price,” the two discounts are not additive.
Example: A $200 coat is 30% off, plus an extra 20% off coupon.
| Step | Calculation | Price |
|---|---|---|
| Original | — | $200 |
| First discount (30%) | 60 off | $140 |
| Second discount (20%) | 28 off | $112 |
| Total saved | $88 (44%, not 50%) | — |
The second discount applies to the already-reduced price, not the original. So 30% + 20% = 44% total, not 50%.
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 |
| $100 | $90.00 | $80.00 | $75.00 | $70.00 | $50.00 |
| $250 | $225.00 | $200.00 | $187.50 | $175.00 | $125.00 |
| $500 | $450.00 | $400.00 | $375.00 | $350.00 | $250.00 |
Smart Shopping Tips
Compare actual savings, not just percentages. A 50% discount on a 5. A 20% discount on a 40. The bigger percentage isn’t always the bigger saving.
Watch for inflated “original” prices. Some retailers raise the listed price before a sale to make the discount look bigger. Compare prices across stores before assuming a deal is genuine.
Consider the price per unit. A “Buy 2 Get 1 Free” deal on $30 items is effectively 33% off per item. Compare this to a straight 25% off to see which is actually cheaper.
Formula
Amount Saved:
Discounted Price:
Frequently Asked Questions
Is the discount applied before or after tax?
In most cases, the discount applies to the pre-tax price. Sales tax is then calculated on the discounted amount. Check the store’s policy to be sure.
Can I use this for any currency?
Yes. The formula works with any currency. Enter the price in your local currency — the math is universal.
How do I find the original price from a sale price?
Reverse the formula: Original Price = Sale Price / (1 - Discount Rate / 100). For example, you paid 75 / 0.75 = $100 was the original price.
Is a bigger discount always a better deal?
Not necessarily. A 70% discount on an overpriced item may still cost more than a 20% discount on a fairly priced alternative. Always compare the final price, not just the discount percentage.
FAQ
Is this tool free to use?
Yes, all tools on Toolmize are completely free. No sign-up, no hidden fees — just open and use.
Is my data safe?
All calculations happen directly in your browser. No data is sent to any server, so your information stays 100% private.