In Genesis, how many cubits long does Noah’s Ark measure?

In Genesis, Noah’s Ark is described as 300 cubits long.

Genesis 6:15 gives the Ark’s three principal dimensions: 300 cubits in length, 50 cubits in width, and 30 cubits in height. A cubit was an ancient unit based roughly on the length of a forearm, so its exact modern equivalent is uncertain. Depending on the cubit used, the Ark’s length is often estimated at roughly 135 to 157 metres.

These measurements describe a huge rectangular vessel rather than a conventional ship with a pointed bow. The biblical account emphasizes its capacity and stability during the Flood, not speed or navigation. Modern illustrations sometimes make the Ark look like a sailing ship, but Genesis does not mention sails, oars, or a rudder. The dimensions are therefore best understood as ancient literary and engineering specifications within the story, rather than a fully detailed shipbuilding plan.