Shopping List Cost Calculator
Avoid surprises at the register by totaling your cart before you shop. Enter up to five items as a quantity and a unit price, set your local sales tax rate, and this calculator returns each subtotal, the combined subtotal, the tax amount, and the grand total. Every figure comes from your own inputs; no prices or tax rates are assumed, because sales tax in the US is set by state and locality. Use it to stay within a budget, split a bill, or check whether a coupon brings you under a target.
Shopping total formula
Line total = quantity * unit price
Subtotal = sum of all line totals
Tax = subtotal * tax rate / 100
Grand total = subtotal + tax
Item count = sum of all quantities
Each line multiplies quantity by unit price. The subtotal sums those lines, tax is applied to the subtotal, and the grand total adds them together. Leave a row's quantity at zero to skip it.
Sales tax notes
- US sales tax is set by each state and often by counties and cities; there is no national rate.
- Many states exempt or reduce tax on grocery food; check your state rules.
- Enter the combined state plus local rate for the most accurate total.
- For weight-priced items, use weight as quantity and price per unit weight as unit price.
- All figures are your own inputs; nothing is assumed.
Shopping list cost: frequently asked questions
How do I total a shopping list?
Multiply each item's quantity by its unit price to get the line total, sum all line totals for the subtotal, then add sales tax. This calculator handles up to five items and applies a tax rate you enter to produce the final total.
What sales tax rate should I use?
Sales tax in the US is set by state and often local jurisdictions, so there is no single national rate. Enter the combined rate for your location as a percentage; the calculator does not assume one. Groceries are tax-exempt or reduced-rate in many states.
How is the tax amount calculated?
Tax equals the subtotal times the tax rate divided by 100. A 50 dollar subtotal at an 8 percent rate adds 4 dollars of tax, for a 54 dollar total. The calculator shows the subtotal, the tax amount, and the grand total separately.
Can I use this for a budget cap?
Yes. Enter your planned items and watch the running total against your budget. Adjust quantities to stay under a target. Because every figure is your own input, the result reflects your actual list, not estimated prices.
Does it handle items priced by weight?
Yes, indirectly. Enter the weight as the quantity and the price per unit weight as the unit price; the line total then equals weight times price per unit. Keep the unit consistent between quantity and price.
Official sources
- U.S. Bureau of Labor Statistics: Consumer Price Index and food prices.
- USA.gov: state sales tax information.
Reviewed by the CalculatorHub team, edited by James Graham, 16 June 2026. See our methodology.