Contact Tallivo
Found a bug in a calculation, want a tool we don't have yet, or have a question about our methodology? We'd like to hear it.
The fastest way to reach us is email: hello@tallivo.com. We read every message.
Report a calculation issue
Accuracy is the whole point of this site, so calculation reports get priority. Please include the calculator, the exact inputs you used, the result you saw, and the result you expected (with a source if you have one). That lets us reproduce and fix it quickly.
Suggest a calculator
Tell us what you were trying to figure out and couldn't. The most-requested tools move up the list.
Partnerships & press
For embedding a calculator on your site, data-study requests, or press, email the same address with a subject line that says so.
Before you write, our about and disclaimer pages answer the most common questions.