Genesis 6:15

And this is how you are to build it: The ark is to be 300 cubits long, 50 cubits wide, and 30 cubits high.

Note The ark was approximately 450 feet long, 75 feet wide, and 45 feet high (137.2 meters long, 22.9 meters wide, and 13.7 meters high).

And this is the fashion which thou shalt make it of: The length of the ark shall be three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits.

This is how you shall make it. The length of the ship shall be three hundred cubits, its width fifty cubits, and its height thirty cubits.

Note A cubit is the length from the tip of the middle finger to the elbow on a man’s arm, or about 18 inches or 46 centimeters.

And this is how thou shalt make it: the length of the ark three hundred cubits, the breadth of it fifty cubits, and the height of it thirty cubits.