Meaning

• The total, aggregate or sum of material (not applicable to discrete numbers or units or items in standard English).

  "The amount of atmospheric pollution threatens a health crisis."

• A quantity or volume.

  "Pour a small amount of water into the dish."

• (sometimes proscribed) The number (the sum) of elements in a set.

Meaning

• (followed by to) To total or evaluate.

  "It amounts to three dollars and change."

• (followed by to) To be the same as or equivalent to.

  "He was a pretty good student, but never amounted to much professionally."

• To go up; to ascend.