How many miles is 0.3 acres?

Answer 1

Acres are a measure of area, not length - so acres are a measure of square miles, not miles.

To two significant figures, 0.3 acres is equal to 0.00047 square miles.

Answer 2

There is no direct conversion from acres to miles since acres measure area and miles measure distance. The size of 0.3 acres would depend on the shape and dimensions of the plot of land.