What how many miles or yards or feet is 6 acres

'Mile', 'yard', and 'foot' are measures of length or distance.

'Acre' is a measure of area. So they're not equivalent units.

1 Acre = 43,560 square feet,

4,840 square yards,

0.0015625 square mile.

6 Acres = 261,360 square feet,

29,040 square yards,

0.009375 square mile.

You would have to take 43,500 x 6 which equals 261,360 sqft.