Which Bigger Pockets Tool or Calculator Do You Use the Most?

[Bob Asad]

I'm thinking of signing up for Pro (mostly for tools / calculators) and also checking out other rental calculators online. Which type of calculator do you use the most here or elsewhere?

I'm looking mostly for if I buy a 4-unit quadplex (example, or Triplex), how to calculate NOI, Monthly Cash Flow, Rehab, Cap Rate, Cash-on-Cash, etc.

For example, whenever I find a property on Crexi, Loopnet, MLS, etc. the NOI sounds good but when you factor in mortgage to get the cash flow, it's almost always negative.

I also don't know how to properly calculate a rehab to see ARV so that may be the other issue.