Contact Us

For Windows software support for prior versions of SolveIT!, C-Value! & AmortizeIT!:

For any question or issue you may have with an online calculator, please leave your question in the comment section on the appropriate calculator page. We'll be happy to help you.

The online calculators were first released in 1996 and were previously hosted at:

pine-grove.com

financial-calculators.com

Founder: Karl Thompson

View Karl's profile

financial professionals, attorneys, accountants, real estate professional etc. and programmers too, feel free to connect

I have been creating software calculators, first for DOS, then Windows and now the internet since 1983.

I have consulted for leading financial institutions such as Citigroup as well as a number of hedge funds, among them, Tiger Management, LLC.

I hold a B.A. from Grove City College in English with a minor in economics. Additionally, I studied software development at New York University (NYU) and The New School in New York City.