|Easton's Bible Dictionary|
(from Lat. mille, "a thousand;" Matthew 5:41), a Roman measure of 1,000 paces of 5 feet each. Thus the Roman mile has 1618 yards, being 142 yards shorter than the English mile.
Noah Webster's Dictionary
(n.) A certain measure of distance, being equivalent in England and the United States to 320 poles or rods, or 5,280 feet.
Int. Standard Bible Encyclopedia
mil (milion, Latin mille passus, milia passuum): A thousand paces, equal to 1,618 English yards. (Matthew 5:41).
See WEIGHTS AND MEASURES.
Mile (2 Occurrences)
Matthew 5:41 Whoever compels you to go one mile, go with him two. (WEB KJV WEY ASV BBE DBY WBS YLT NAS RSV NIV)
Acts 1:12 Then they returned to Jerusalem from the mountain called the Oliveyard, which is near Jerusalem, about a mile off. (WEY)