Sales Tax Calculator
Calculate the sales tax on any purchase. Enter the price before tax and the tax rate to instantly see the tax amount and total price including tax. Also works in reverse — enter the total to find the pre-tax price.
US Sales Tax Rates by State (2024)
| State | State Rate | Avg. with Local |
|---|---|---|
| California | 7.25% | 8.82% |
| Texas | 6.25% | 8.19% |
| New York | 4.00% | 8.52% |
| Florida | 6.00% | 7.01% |
| Washington | 6.50% | 9.38% |
| Oregon / Montana / Delaware | 0% | 0% |
Frequently Asked Questions
Multiply the pre-tax price by the tax rate: Tax = Price × (Rate ÷ 100). Add that to the original price for the total: Total = Price + Tax.
Divide the total by (1 + tax rate). For example, if total is $108 with 8% tax: $108 ÷ 1.08 = $100 pre-tax price.
About the Sales Tax Calculator
This free sales tax calculator helps you get accurate results instantly without needing to work through the math manually. Whether you need a quick estimate or a precise figure, having a reliable tool on hand saves time and reduces errors compared to manual calculation.
How to Use This Calculator
- Enter your values in the input fields above. Each field is labeled to guide you.
- Double-check your inputs — results are only as accurate as the numbers you enter.
- Click the Calculate button to see your result instantly.
- Use the result for your planning, budgeting, or decision-making.
Why Accurate Calculations Matter
Small errors in financial calculations can compound into significant problems. A 1% miscalculation in a budget or measurement can translate to hundreds or thousands of dollars in wasted resources, or result in having to redo work entirely. This calculator uses the standard formulas and methods to give you reliable results you can trust.
Tips for Getting the Best Results
- Use consistent units throughout (all in feet, all in dollars, etc.)
- For estimates, add a 10% buffer to account for real-world variables
- Save your result by taking a screenshot or writing it down before closing the page
- For decisions involving significant money or safety, verify results with a qualified professional
Frequently Asked Questions
Is this calculator free? Yes — completely free with no account, login, or payment required. Use it as many times as you need.
How accurate are the results? This calculator uses the standard formulas for sales tax calculations. Results are accurate for typical use cases. For specialized or high-stakes applications, consult a professional.
Does it work on mobile? Yes. This calculator is fully responsive and works on smartphones, tablets, and desktops.