A standard U.S. penny is worth 1 cent, which is 0.01 U.S. dollars.

What “a penny” usually means

  • In everyday U.S. money, a penny is the 1‑cent coin, equal to one hundredth of a dollar.
  • So 100 pennies = 1.00 dollar, using the simple relation “dollars = pennies ÷ 100.”

Quick mini-examples

  • 1 penny = $0.01.
  • 25 pennies = $0.25.
  • 100 pennies = $1.00.

A tiny extra wrinkle (material vs. face value)

  • Economists sometimes distinguish between face value (1 cent) and the value of the metal in the coin, which can be different, but for normal shopping and saving, a penny always counts as exactly 1 cent.

TL;DR: In regular U.S. money, one penny is worth exactly 1 cent ($0.01).

Information gathered from public forums or data available on the internet and portrayed here.