Area

Converts areas between square meters, square kilometers, hectares, acres, square feet, square miles, and square nautical miles. Surveyors, farmers, and drone mappers use it for parcels, fields, and survey blocks. Start with the area converter, or the acres and hectares shortcuts. Pitfall: an area factor is the square of a length factor, so applying a length conversion to an area gives the wrong answer. A hectare is a square 100 m on a side.