If you go by fluid ounces it’s one scoop per fluid ounce so nice and easy to remember 😊
We use the Kendamil goat formula. It’s 1 level scoop to 1 oz of water. I believe the same for their cow milk formula too. Be sure to follow the directions on tin regarding the boiling water - formula milk powders are not sterilised. :)
If I do a 9 ounce bottle I do 9 scoops
This ratio is 1 scoop per 30 mL, so why not make a 120 mL bottle with 4 scoops and see how you get on?