How much more credits do you need from a GPA 2.6 to 3.7?

There's no single answer to how many more credits you need to raise your GPA from 2.6 to 3.7. It depends entirely on how many credits you currently have. The more credits you have with the 2.6 GPA, the more difficult it will be to raise it to 3.7.

To figure this out, you'll need to use a GPA calculator that allows you to input your current GPA and credits, and then project what your GPA would be with additional credits at a perfect 4.0. Many such calculators are available online. You'll need to experiment with different numbers of additional credits until you reach a projected GPA of 3.7.