Priming Sugar Formulas to Keep On-Hand For every five gallons of beer, the following rules (typically) apply: ¾ cups of corn sugar. 2/3 cup of table sugar. 1 ¼ cup dry malt extract.
Priming sugar directly into each 500ml bottle = 1/4 tsp to 1 tsp.
If you were bulk priming that'd be easy; you'd just dissolve the sugar in boiling water and mix it into the beer after racking. However, if you are bottle priming it would require 4.6g (give or take) of sugar in each 750ml bottle.
Prepare your priming sugar. We add a priming solution just before bottling to provide carbonation to the beer in the bottle. Boil 3/4 cup (4-5 oz by weight) of corn sugar or 2/3 cup (3.8-4.8 oz by weight) of cane sugar in two cups of water.