Sales Tax Calculator

Calculate sales tax amount and total price instantly with any tax rate.

Discount20% off $100 = $80
Tip Amount15% of $50 = $7.50
Growth$100 → $125 = +25%

The Bottom Line

Calculate sales tax amounts and total prices instantly. Essential for budgeting purchases, understanding final costs, and financial planning. Enter any base amount and tax rate to see the tax amount and total with tax included.

Sales Tax Calculator

Tax Amount
+$8.5
Total with Tax
$108.5
$100 + $8.5 tax (8.5%)

Common Uses

Discounts

Calculate sale prices and savings on purchases

Growth Rates

Measure percentage increase or decrease

Tips & Taxes

Calculate tips and sales tax amounts

Grades

Convert test scores to percentages