Black Friday Discount Calculator (Stacked Discounts)

Black Friday discount calculator: final price and real saving when discounts are stacked (30 % + 10 % is 37 %, not 40 %), with coupons and shipping.

final = price × (1 − d₁) × (1 − d₂) − coupon + shipping

How to use this calculator

  1. Type your input in the box.
  2. The result updates as you type.
  3. Use “Copy result” or “Copy link” to share it.

A second discount applies to the already reduced price, so stacked percentages multiply: 1 − (1 − 0.30)(1 − 0.10) = 37 %.

Black Friday 2026 is on November 27 and Cyber Monday on November 30. Check the price history: some shops raise prices before the sale.

Frequently asked questions

$199.99 with 30 % off and an extra 10 % code?

$125.99 — a real discount of 37 %.

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