Everyday calculators

Discount Calculator

Find the final sale price, savings, stacked discount rate, quantity subtotal, and sales tax with a complete checkout breakdown.

Purchase details

Price and discounts

Quick discount

Stacked discount: the additional discount applies to the already reduced price, so two discounts are not simply added together.

Final total after tax$171.722 items
Final price per item
$81.00
Savings per item
$39.00
Effective discount
32.5%
Original subtotal
$240.00
Total savings
$78.00
Discounted subtotal
$162.00
Sales tax
$9.72

Calculation

$120.00 × (1 − 25%) × (1 − 10%) × 2 + 6% tax

Estimate only. Store rounding, coupons, fees, exemptions, and local tax rules can produce a different checkout total.

How to use it

Get a reliable result

  1. Choose a currency and enter the original price per item.
  2. Enter the main discount, any additional sequential discount, the quantity, and the sales-tax rate.
  3. Review the per-item and order totals, then copy the complete summary if needed.

Useful for

Common workflows

  • Compare a sale price with the original shelf price
  • Calculate stacked store and coupon discounts
  • Estimate a multi-item checkout total after sales tax

Examples

What to expect

Stacked sale discounts
Input
$120 with 25% off, then another 10% off
Output
$81 per item and a 32.5% effective discount

The second discount applies to $90 rather than the original $120.

Quantity and tax
Input
Two $81 items with 6% sales tax
Output
$162 subtotal + $9.72 tax = $171.72 total

Know before you start

Important limitations

  • Stacked discounts are applied sequentially and are not added together.
  • The tax estimate assumes one rate applied to the discounted subtotal and does not model exemptions, tax holidays, fees, shipping, or jurisdiction-specific rules.
  • Currency formatting does not perform exchange-rate conversion; changing currency changes only the displayed unit.
  • Store-specific rounding at the item, coupon, or tax level can differ from the final formatted estimate.
  • Results are shopping estimates, not tax, accounting, or financial advice.

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Common questions

Discount Calculator FAQ

How do two discounts combine?

Apply each discount sequentially. For example, 25% off followed by 10% off leaves 75% × 90% = 67.5% of the original price, which is a 32.5% effective discount—not 35%.

Is sales tax calculated before or after the discount?

This calculator applies the entered tax rate to the discounted subtotal. Actual taxable amounts, exemptions, fees, and rules depend on the seller and jurisdiction.

Why might a store total differ by a few cents?

A store may round each item, coupon, tax component, or order at a different stage. This tool calculates with full floating-point values and formats the displayed currency at the end.

Are purchase details uploaded?

No. Prices, rates, quantities, calculations, and clipboard output remain in the current browser.

Browser-local

Processed on your device

Prices, discount rates, quantities, taxes, and calculated results stay in this browser and are never uploaded or stored.

How this processing works

The tool reads and processes this input in your browser. Tool Packer's application server does not receive the input or generated result.

Read the full privacy explanation