Question

How much is a milliliter

Answer 1

If you mean by 'How much is a milliliter to a litre'
It would be equivalent to:
1 milliliter = 0.001 litres

Answer 2

-- 236 of them make 1 cup
-- 946 of them make 1 quart
-- the volume of a tiny cube that's 1 centimeter along each edge
-- 16.4 of them in a little cube that's 1 inch along
-- 4.9 of them make a standard cooking teaspoon
-- a perfume that cost $50 an ounce would cost $1.69 per milliliter