Sales Tax Calculator

Add tax to a price, remove tax from a total, and estimate the tax amount.

Formula

To add tax, multiply by 1 plus the tax rate. To remove included tax, divide by 1 plus the tax rate.

total = price × (1 + tax%/100) pre-tax price = total ÷ (1 + tax%/100)

Short, practical answers for this calculation.

No. It estimates simple sales tax math. Actual tax can depend on local rules, exemptions, and rounding.

Divide the total by 1 plus the tax rate as a decimal.

They are related consumption taxes but applied differently. Use the VAT calculator for net/gross VAT layouts.

Many receipts round to the nearest cent. This calculator displays rounded results for convenience.

Keep the topic tight: discounts, tax, VAT, markup, tips, grades, and percentage change.

All-in-one calculator for percent of a number, percent change, reverse percentages, increases, decreases, and conversions.

Calculate percentage increase or decrease from an old value to a new value.

Find the original value before a percentage increase, decrease, or percent-of relationship.

Calculate sale price, savings, and original price from discount percentages.

Add or remove VAT and calculate net price, gross price, and VAT amount.

Calculate markup percentage, selling price, cost, and gross profit.

Calculate profit margin, markup, revenue, cost, and profit.

Calculate tips, totals, and split bills quickly.

Convert test scores into percentages and letter-grade style ranges.