Calculate discounted prices, savings amounts, and reverse-calculate original prices. Includes bulk quantity tiers.
This Discount Calculator works out the final sale price, the exact amount you save, and the savings percentage the moment you type a price and a discount — no buttons to press and no maths to remember.
It runs in three modes so it covers the way real sales actually work. Simple mode takes an original price and a percentage off and shows the price you pay plus the dollar amount and percentage you save, with one-tap presets for the most common discounts from 5% up to 50%. Find Original mode reverses the sum: enter what you actually paid and the discount that was applied, and it recovers the pre-discount price so you can tell whether a "70% off" sticker was genuine. Bulk / Tiered mode prices a quantity against a built-in volume schedule, applying a larger per-unit discount as the order grows and laying out every tier in a table so you can see how much more you save by ordering one bracket higher. People use it to:
Everything is calculated locally in your browser — nothing you enter is uploaded, stored, or shared, so prices and quotes stay entirely on your device. The results round to cents for clarity, and because the tool updates live you can drag a discount up or down and watch the savings change instantly, which makes it just as useful for haggling and budgeting as it is for retail and procurement.
Divide the saving by the original price and multiply by 100. For example, saving $25 on a $100 item is (25 ÷ 100) × 100 = 25% off.
Divide the sale price by (1 − discount/100). A $79 item after 30% off was originally 79 ÷ 0.70 = $112.86.
Apply them sequentially. 20% off then 10% off a $100 item gives $72 — that is 28% off, not 30%. Stacked discounts always save less than the sum of their percentages.
Multiply the original price by (1 − discount/100). A $100 item at 20% off is 100 × 0.80 = $80, and the amount you save is the original price minus that final price, or $20. In Simple mode you just type the price and percentage and the tool shows both the final price and the saving for you.
Divide the sale price by (1 − discount/100). If you paid $79 after 30% off, the original was 79 ÷ 0.70 = $112.86, and you saved $33.86. Find Original mode does this in reverse for you, which is handy for checking whether a marked-down ticket price reflects the discount it claims.
Keep multiplying the running price by each discount factor in turn. A $100 item with 20%, then 10%, then 5% off becomes 100 × 0.80 × 0.90 × 0.95 = $68.40. The order does not change the final figure, but the combined saving is always smaller than adding the percentages, because each discount applies to an already-reduced price.
Bulk pricing gives a bigger per-unit discount as the quantity rises, so the price per item falls when your order crosses into a higher tier. In Bulk / Tiered mode you enter the base unit price and quantity, and the table shows every bracket — from no discount on small orders up to the deepest tier — and highlights the one your quantity lands in, along with the per-unit price and total.