Get Snow Day Calculator
Home/Tools/Calculators & Converters/Sales Tax Calculator
100% Private & Browser-Processed

Sales Tax Calculator

Calculate sales tax, total price, or pre-tax value quickly for purchases and invoices with an easy browser-based sales tax calculator.

How to use Sales Tax Calculator

  1. 1Choose whether to Add Sales Tax or Reverse Extract Tax.
  2. 2Enter the price or total amount.
  3. 3Enter your local state or regional sales tax percentage.
  4. 4View the net amount, tax amount, and gross total.

Key Features & Capabilities

Forward tax calculation (Price + Tax)
Reverse tax calculation (Extract pre-tax amount from receipt total)
High-precision rounding

Frequently Asked Questions

How do you reverse calculate sales tax?

Divide the total receipt price by (1 + Tax Rate). For example, $108 with 8% tax is $108 / 1.08 = $100.

Privacy & Security Commitment

Runs client-side in your browser with zero data retention.

Related In-Depth Guides

How to Calculate Percentage Change, Increases, and Discounts

Learn the exact mathematical formulas for percentage increase, percentage decrease, proportion calculations, and sales discount margins.

More Calculators & Converters Tools

Snow Day CalculatorPercentage CalculatorAge CalculatorDate Difference CalculatorTime Difference CalculatorUnit Converter (Length, Weight, Temp, Speed, Data)

Feedback & Tool Requests

Have an idea for a new utility or format converter? We continually build new tools for our global community.

Send Request