Sales
Total Price Calculator
Multiply unit price by quantity and add sales tax.
Free to use — no sign-up or login.
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Subtotal
Tax
Total
A checkout line is usually unit price times quantity, then sales tax on that subtotal. This calculator takes those three inputs and reports subtotal, tax dollars, and the all-in total. Set tax % to 0 if the price is already tax-inclusive or tax does not apply.
For tax on a single pre-tax amount with no quantity field, use the Sales Tax Calculator. To cut a sticker price before tax, use the Discount Calculator. A tip on a bill is a separate percentage — see the Tip Calculator.
Subtotal first, then tax
Unit price is the price of one item. Quantity is how many you buy (zero or more). Subtotal = unit price × quantity. Tax % is percentage points applied to that subtotal, so tax amount = subtotal × (tax / 100) and total = subtotal + tax. The tool does not look up local rates or decide what is taxable.
When to use a different sales tool
Use this page when you have a per-unit price and a count. If you already know the pre-tax merchandise total, sales tax alone is enough. Discounts belong on the unit or subtotal before you tax; this form does not stack coupons.
Worked example: $19.99 × 3 at 8% tax
Match the calculator defaults: unit price $19.99, quantity 3, tax 8%. Subtotal = 19.99 × 3 = $59.97. Tax = 59.97 × 0.08 = $4.7976 ≈ $4.80 when rounded to the cent. Total = 59.97 + 4.7976 = $64.7676 ≈ $64.77.
\[ S=19.99\times 3=59.97,\quad T=59.97\times 0.08=4.7976,\quad G=64.7676 \]
Frequently asked questions
Is tax applied to each unit or to the subtotal?
To the subtotal. The calculator multiplies price by quantity first, then applies the tax percent to that product.
Can I leave tax at 0%?
Yes. A 0% tax rate makes tax amount $0 and total equal to the subtotal — useful for tax-free items or when tax is already in the unit price.
Does this apply a discount before tax?
No. Enter an already-discounted unit price, or compute the sale price on the Discount Calculator first, then come back with quantity and tax.
How is this different from the Sales Tax Calculator?
Sales tax takes one pre-tax amount. Total price multiplies unit price by quantity, then taxes that line. Use whichever matches the numbers you already have.
Sources
Assumptions and limitations
This tool multiplies unit price by quantity and applies one tax percent to the subtotal. It does not look up jurisdiction rates, apply exemptions, or stack discounts or tips. Not tax advice.