That will depend greatly on the density of the item. 600g of flour and 600g of water will not be the same number of cups. Without knowing what you're measuring, I can't give you a precise conversion.
There are 2.61 cups is in 600 grams according to an online conversion calculator I found.
http://www.gourmetsleuth.com/gram_calc.htm
That is 5.4 cups
It equals about 2 and 1/2 cups
About 2.25 cups
Two cups and five fluid ounces
That is 2.646 cups
That is approximately 2.7 cups.
600g
600g = 21.2oz
600 grams of caster sugar is about two and a half cups of caster sugar. One cup is about 236.5 grams.
600g = 1.32277 lbs
usually around 800 grams
About 1.323 pounds to 600g
600g = 1.3 (1.32277) pounds.
600 grams = 21.16 ounces
5 kg is greater (it is equal to 5000g)
0.6kg = 600g
It depends on the liquid. At room temperature and sea level 600ml of water weighs 600g. 600g is 1.3lbs. If your 600ml is denser than water then it'll be more, if it's less dense it'll be less.