will carry over NOL cover all this income

I have the following types of income in 2025:

W2
INT
DIV
SS
IRA withdrawl (NON Roth)
cap gains

The total of those is less than the NOL leftover from last year. 
I am MFJ and both over 65. 
I want to make sure I plan correctly for converting an IRA to a Roth with out going into the next tax bracket. What is the math for this?