UNITED STATES • FREE ONLINE TOOLS
Free US Calculators
Quick calculators for common U.S. questions: sales tax, mortgage payments, college GPA, and salary-to-hourly pay. Enter your numbers and get a fast planning estimate.
US Sales Tax Calculator
Calculate sales tax and total price using a state or local sales tax rate.
Open calculator →Mortgage Calculator
Estimate monthly mortgage payment, total interest, and total repayment.
Open calculator →GPA Calculator
Calculate grade point average from course grades and optional credit hours.
Open calculator →Salary to Hourly Calculator
Convert an annual salary into an estimated hourly, weekly, and monthly rate.
Open calculator →Common US calculator searches
These tools cover practical U.S. use cases without requiring an account or subscription.