It really depends on the mass of your avocados.
I usually eat about 200g of avocado in a meal, that's usually one normal sized berry.
200g of avocado has roughly 360 calories 30f/18c/4p
I had to look it up but they're not that high in vitamin K as previously quoted, 42mcg in 200g.
The recommended dose of vitamin K for adults is 120mcg/d.