Finance Calculators

Sales Tax Calculator

Use this free sales tax calculator to calculate accurate results instantly with clear inputs, formulas, and rounded answers.

Free browser-based tool • No signup required
Sales Tax

Sales Tax Calculator

Total price
Sales tax
Subtotal
Results are estimates for informational purposes. Verify critical calculations and project requirements independently.

Calculator Inputs and Outputs

Inputs

  • Pre-tax price — example: 100
  • Sales tax rate (%) — example: 7.25

Results

  • Total price
  • Sales tax
  • Subtotal

Formula used

Sales tax = price × tax rate. Total = price + sales tax.

How to Use the Sales Tax Calculator

Enter the requested values, review the units, and select Calculate Sales Tax. The result updates immediately using the formula below.

Formula

Sales tax = price × tax rate. Total = price + sales tax.

Example and Accuracy

The default values provide a working example. Change any input to calculate your own result. The calculator keeps full internal precision and rounds displayed values for readability.

Important Note

This calculator provides an informational estimate. Verify critical financial, medical, construction, scientific, or legal decisions with an appropriate qualified professional.

Calculation Standards

This tool uses documented formulas and high-precision internal values. Displayed results may be rounded for readability. Review the assumptions and verify important decisions with a qualified professional.

Read our calculation methodology