How old is everyone in OMG now?

[Gunblade]

I never really states how many years have past, and it doesn't really state how old each character is either but still... How old is everyone?

[Xerlic]

While 13 years has passed since the manga started, I don't think 13 years has actually passed in the manga storyline. Of course, time has progressed for the OMG crew, just at a different rate. Using K1 as a reference: K1 has graduated college and has started working for Chihiro since the manga began. This would suggest that roughly 3-4 years has passed. With the two older goddesses, it is harder to tell based on their appearances how old they are. Skuld definitely seems older, at least based on her actions.

[WelsperTheCat]

Keiichi hasn't graduated from college, yet. He completed his normal term but had one credit hour that slipped through the cracks, so he couldn't graduate.

We know K1 was a 21-year-old 1st year student when the series started. Assuming he took normal course loads he should be in his 4th to 5th year after that, OMG time, or about 25-26 now.

Depending upon how you view goddess aging (i.e. OVA version or manga version) the goddesses are either aging accordingly or not.