John 6:19

When they had rowed about three or four miles, they saw Jesus approaching the boat, walking on the sea—and they were terrified.

Note Greek about twenty-five or thirty stadia; that is, approximately 2.87 to 3.45 miles (4.62 to 5.55 kilometers)

So when they had rowed about five and twenty or thirty furlongs, they see Jesus walking on the sea, and drawing nigh unto the ship: and they were afraid.

When therefore they had rowed about twenty-five or thirty stadia, they saw Jesus walking on the sea and drawing near to the boat; and they were afraid.

Note 25 to 30 stadia is about 5 to 6 kilometers or about 3 to 4 miles

When therefore they had rowed about five and twenty or thirty furlongs, they behold Jesus walking on the sea, and drawing nigh unto the boat: and they were afraid.