I'd say around a liter per watering in soil. My rule of thumb, same for many other growers, is that you water with 10% of the pot size. I rarely water until i see runoff, and once i see it, i immediately stop watering that plant. It pushes nutrients out of your soil that your plant could be using.
You probably won't need to water every day. Stick your finger into the medium and see how dry it is for the first few inches. If it's just dry on the very top, hold off until the next day. Overwatering can really mess with a plant, especially once you get the medium to a swampy-wet consistency. Swampy soil will most definitely stunt growth and rot roots to the point where it could kill your plants.
Some people, including me, also like to lift their pots to see how light they are. Once you get the feel for it, you can tell almost immediately if your plant needs watered or not.
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I hope this helps!