In Genesis, what was the Ark’s width in cubits?

In Genesis, the Ark’s width was 50 cubits.

Genesis 6:15 gives the Ark’s three principal dimensions as 300 cubits long, 50 cubits wide, and 30 cubits high. The width is therefore the middle measurement in the biblical specification. The passage presents these dimensions as instructions given to Noah before describing the Flood and the animals that would enter the vessel.

The cubit was an ancient unit whose exact length varied by culture and period, so converting the Ark’s dimensions into modern metres or feet is approximate. The 300-cubit length is often the number people remember, but it refers to length rather than width. The same verse gives the height as 30 cubits, making the three dimensions easy to confuse in trivia questions.