Discount Calculator: Find Sale Prices & Savings Instantly
"30% off" sounds great until you're at the register doing mental math. A discount calculator tells you the final price and exactly how much you save — and if you sell things yourself, it works the other way to set your own sale prices. No signup, nothing uploaded.
How discount math works
- Amount saved = original price × discount %
- Final price = original price − amount saved
- Example: $120 at 25% off → save $30 → pay $90
Calculate discounts free with Tooly
The Tooly Discount Calculator makes it instant:
- Enter the original price and discount percentage
- See the final price and the amount you save immediately
- Reverse it to find the discount % from two known prices
- Free, no signup, runs in your browser
Open Discount Calculator
Quick reference
| Original | 20% off | 30% off | 50% off |
|---|---|---|---|
| $40 | $32 | $28 | $20 |
| $80 | $64 | $56 | $40 |
| $120 | $96 | $84 | $60 |
| $250 | $200 | $175 | $125 |
When you'll use it
- Shopping — verify "sale" prices actually save you money
- Coupons & codes — stack discounts and check the real total
- Pricing your own products — set a sale price that still covers costs
- Invoice discounts — apply early-payment discounts correctly (pair with InvoiceForge)
Frequently Asked Questions
Is this discount calculator really free? Yes — unlimited calculations, no account, no watermark.
Can I stack two discounts? Apply them one at a time — the calculator handles each step; just re-enter the result as the new price.
Is my data private? Everything runs in your browser — your numbers never leave your device.
What else should I check? The Sales Tax Calculator adds tax to the discounted price, and the Percentage Calculator covers the rest.