Simple, free tools that do exactly what they say.
🇪🇸 Ver en EspañolThis is a collection of free, fast, and straightforward calculator tools designed to answer everyday financial questions — without ads cluttering the page, without requiring a login, and without making you scroll through five paragraphs before getting your answer.
Our goal is simple: you type in a number, you get the answer. Every tool is mobile-friendly and works on any device.
The tax rates shown in our tools reflect state base rates as of 2025. Sales tax in the United States is complicated — most states allow counties and cities to add their own local rates on top of the state rate, which means the rate at your local store may be higher than what we display.
Our tools are designed for quick estimation, not precise tax accounting. For official rates, consult your state's department of revenue or confirm with your retailer at checkout.
This site is free to use and always will be. It is supported by advertising through Google AdSense. Ads help cover the modest cost of keeping the site online. We keep ads unobtrusive — you will never see pop-ups or auto-playing video ads here.
We do not collect personal information. We use standard analytics to understand how many people visit and which tools are most useful. See our full Privacy Policy for details, including information about advertising cookies.
Have a suggestion for a new tool, found an error in a rate, or have a question? We'd love to hear from you. You can reach us at [email protected] — replace this address with your actual email once your domain is set up.