Discount calculator

Discount calculator: sale price & savings.

Enter the original price and the percentage off to see the final sale price and how much you save. Live calculation with step-by-step math.

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Tip: the results below show numbers without a currency symbol by default. To display amounts with your preferred symbol (₹, €, £, $, ¥, and more), use the currency picker in the top-right header. Your choice is saved on this device.
Discount calculator
Original price → final price
Original price:
Discount: %
Step-by-step

    How discount math works

    A discount of P% means you pay (100 − P)% of the original price. So a 25% discount means you pay 75% of the original. For $120 at 25% off: 120 × 0.75 = $90. The amount you save is 120 × 0.25 = $30.

    Two ways to think about it produce the same answer:

    • Subtract approach: final = original − (original × discount/100)
    • Multiply approach: final = original × (1 − discount/100)

    Stacking discounts

    If you have two discounts that “stack” (apply one after the other), the result is NOT the sum of the percentages. A 20% off coupon plus a 10% loyalty discount on a $100 item produces:

    1. First discount: $100 × 0.80 = $80
    2. Second discount: $80 × 0.90 = $72

    That’s 28% off total — not 30%. The second discount is applied to the already-reduced price.

    Discount vs. percent off

    Some retailers say “25% discount”, others say “25% off”, others say “take an extra 25%”. These all mean the same thing: subtract 25% of the original (or current) price.

    Common questions

    About this tool.

    $80 × 0.25 = $20 savings. Final price = $80 − $20 = $60. Or equivalently: $80 × 0.75 = $60.

    Yes, but the result is 36% off, not 40%. The second 20% is applied to the price after the first discount: $100 → $80 → $64.

    If you know the discounted price ($60) and the discount percent (25%), the original price is $60 ÷ 0.75 = $80. Use our reverse calculator on the main page (mode 3: "is % of what").

    Discounts are usually applied to the pre-tax price, then tax is calculated on the discounted total. Some jurisdictions require tax on the original price — check local rules.

    It depends on the item price. A 20% off coupon on a $50 item saves $10. On a $500 item, it saves $100. Always do the math — sometimes a flat-dollar coupon ($25 off) is better than a percentage one.

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