Discount Calculator — Sale Price, Savings & Reverse Price

Enter original price and percent or dollar off to see what you pay and how much you save—plus reverse, find-%, and stacked promo modes. Calculated locally, never uploaded.

Runs in your browser · No data stored · No signup

A discount calculator computes sale price and dollar savings from an original price and a percent or fixed discount—and can reverse-calculate the original price from a sale tag.

Stacked promos and bundle discounts may have restrictions — always verify final price at checkout.

Skip to discount calculator

Example: 25% off $100

Sale price $75.00 · you save $25.00.

Formula: sale price = original × (1 − discount% ÷ 100). Use stacked, reverse, and find-% modes in the calculator below. For general percent math, see the Percentage Calculator.

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By Muhammad Abdullah Rauf · Founder, EverydayTools.proUpdated 2026-07-08· Reviewed by EverydayTools Editorial Team

What is a discount calculator?

A discount reduces the price you pay. Enter an original price and either a percentage off (e.g. 25%) or a fixed dollar amount off to see the sale price and how much you save.

Core formulas:

Stacked discounts are not additive: 20% off then 10% off the reduced price is 28% total off the original, not 30%. Calculations run in your browser—prices are not uploaded to servers.

  • Savings = original × (discount% ÷ 100), or fixed amount when entered in dollars
  • Sale price = original − savings
  • Reverse original = sale price ÷ (1 − discount% ÷ 100)

Percent-off and fixed-amount discounts both work; stacked promos need step-by-step math, not added percentages.

Quick answers

Concise answers for common searches — definitions, steps, and comparisons.

Are discount calculations private?

Discount Calculator — Sale Price, Savings & Reverse Price (/discount-calculator) runs in your browser when supported—inputs are not uploaded to EverydayTools servers.

Is 20% off plus 10% off the same as 30% off?

No. The second discount applies to the already-reduced price—effective total is 28% off $100, not 30%.

How do I find original price from a sale?

Original = sale price ÷ (1 − discount%). Example: $60 after 25% off → $60 ÷ 0.75 = $80.

How to use Discount Calculator — Sale Price, Savings & Reverse Price

  1. Enter the original price

    Type the full price before any discount (numbers only—no currency symbol in the field).

  2. Choose percent or fixed discount

    Select percentage off or a fixed dollar amount off, then enter the value.

  3. Calculate sale price and savings

    Click Calculate to see final price, amount saved, and effective percent off.

  4. Reverse the original price

    If you know sale price and discount %, use reverse mode: original = sale ÷ (1 − discount%).

Who uses Discount Calculator — Sale Price, Savings & Reverse Price?

Common real-world scenarios where this tool saves time.

Shopping and retail

Verify shelf tags, compare BOGO vs percent-off, and see true savings before checkout.

Store markdowns

Set sale prices for campaigns or work backward from a target final price.

Reports and homework

Convert dollar savings to percentages for budgets and presentations.

Workflow guides

Step-by-step chains that connect related tools for common tasks.

Verify a store tag before buying

  1. Enter the ‘was’ price and percent or dollar off from the tag.
  2. Compare calculated sale price to the shelf price.
  3. If they differ, ask the cashier or check policy for exclusions.

Discount Calculator — Sale Price, Savings & Reverse Price examples

30% off a $79.99 jacket

Input

Original: $79.99 · Discount: 30%

Output

Sale price: $55.99 · You save: $24.00

$79.99 × 0.30 = $24.00 savings; final price $55.99.

Find the percentage off

Input

Original: $120 · Sale price: $89

Output

Discount: 25.8% off · You save: $31.00

($120 − $89) ÷ $120 = 25.8% when the tag shows only dollar prices.

Stacked discounts

Input

Original: $200 · 20% then 15% on reduced price

Output

Final: $136 · 32% off original (not 35%)

$200 × 0.8 = $160, then $160 × 0.85 = $136.

Discount formulas

Supports percent-off, fixed-amount-off, and reverse original-price mode using standard retail arithmetic.

Formula

Savings = original × (discount% ÷ 100) or fixed $
Sale price = original − savings
Original (reverse) = sale ÷ (1 − discount% ÷ 100)

Reference tables

Discount vs related calculators

NeedDiscount CalculatorUse instead
Sale price from % or $ offYes—
Tip on a restaurant billSimilar mathTip Calculator
Margin from cost and price—Profit Margin Calculator
Generic % of a number—Percentage Calculator

Percent off vs fixed amount off

TypeFormulaExample ($80 original)
Percent offSavings = price × (pct ÷ 100)25% off → save $20, pay $60
Fixed amountSavings = fixed dollars$15 off → pay $65
Stacked %Apply each % to reduced price20% then 10% ≠ 30% total

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Frequently Asked Questions

How do I calculate a percentage discount?

Sale price = original × (1 − discount%). For 25% off $80: $80 × 0.75 = $60. Savings = $80 × 0.25 = $20.

How do I find the original price from a discounted price?

Original = sale price ÷ (1 − discount%). $60 after 25% off: $60 ÷ 0.75 = $80.

Are stacked discounts the same as adding percentages?

No. 20% then 10% on the reduced price equals 28% total off the original, not 30%.

What is the formula for percentage discount?

Discount% = ((original − sale) ÷ original) × 100. $120 down to $90 is 25% off.

Can I enter a fixed dollar discount instead of percent?

Yes. Switch to fixed amount mode and enter dollars off—the tool computes final price and savings.

How do I calculate 30% off?

Multiply the original price by 0.70 (keeping 70% of the price). Example: 30% off $50 = $50 × 0.70 = $35. Or: savings = $50 × 0.30 = $15; final price = $50 − $15 = $35.

What is a good discount percentage?

15–20% is a moderate discount common in retail sales. 25–30% is a strong deal. 50%+ is a clearance or deep discount. Compare to historical pricing (check CamelCamelCamel for Amazon) — retailers sometimes inflate original prices before 'discounting.'

How do I calculate the discount percentage when I know both prices?

Discount% = ((original − sale price) ÷ original) × 100. Example: was $120, now $84 → (($120 − $84) ÷ $120) × 100 = 30%.

How much do I save with a BOGO (Buy One Get One) deal?

BOGO 50% off on equal items is effectively 25% off both items combined. BOGO free on two identical items is 50% off each. Use the calculator: enter the cost of two units as the original price, and enter the value of one unit as the savings.

Do coupons stack with sale prices?

Sometimes. When they do, apply them sequentially: 20% sale first, then 10% coupon on the discounted price. This gives 28% total off (not 30%). The tool's stacked discount mode handles this correctly.

Privacy, accuracy, and trust

Privacy

Discount Calculator — Sale Price, Savings & Reverse Price (/discount-calculator) runs in your browser when supported—inputs are not uploaded to EverydayTools servers.

Accuracy

Formulas follow standard percent-off and fixed-amount retail math; stacked discounts require sequential application.

For tax-inclusive pricing or complex promotions, confirm with the retailer’s final receipt. Financial results are estimates for planning only — not tax, legal, or investment advice. Verify with your employer, institution, or a qualified professional.

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Reviewed by EverydayTools Editorial Team on 2026-07-08.

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