Tools for everyday decisions
Fast, free calculators. All calculations run in your browser. No account or personal information required.
Streaming cost calculator
Find out what multiple subscriptions really cost over a year.
Enter values and select Calculate.
Uses your inputs, not live provider prices.
Discount calculator
Compare a sale price against the regular price before buying.
Enter values and select Calculate.
A displayed discount does not prove the original price was typical.
Sales tax estimator
Estimate your checkout total from a known tax rate.
Enter values and select Calculate.
Not a tax lookup. Local exemptions and rules may differ.
Split the bill
Quickly divide a restaurant bill including a tip.
Enter values and select Calculate.
Enter a total that already includes sales tax if applicable.