1.5mill out of 4mill experience. How do I get 60 now?

[Nektulos-Tuor]

Whats the fastest way?

[SkyfangRauss]

dungeon spam, dungeon spam, dungeon spam

you can also do your daily hunt marks for about 100k exp, and your daily roulette bonuses

[Sylve]

Hunts, Leves, Dungeons, FATEs, Roulettes.
Plenty of ways to go about it.

Also, poke around Ishgard for city Side Quests, they tend to unlock bunches more in other zones. I remember one i picked up led to a chain of about 10 out in Mists for 40k~ XP a pop.

Also, Level 1 and 2 Hunt marks stack, you can have both at once. 5x 23k XP for the level 1s then 5x 29k for the level 2s.

[seida]

I just dungeon span. Good xp and you can gear up. Plus the library is a lot of fun!

[StouterTaru]

dungeon spam, dungeon spam, dungeon spam

you can also do your daily hunt marks for about 100k exp, and your daily roulette bonuses

Daily marks will give closer to 400k exp, more than 3 roulette bonuses.

[XgungraveX]

dungeon grind i did its from 56-58

[myahele]

I guess while waiting for DF queue to pop perhaps try you leves?

While it's not as efficient as 10 single leves, a Temple Leve awarded me with 100K + exp

[Nektulos-Tuor]

Already finished all my leves =9