Square Feet to Square Kilometers Converter

What Is a Square Foot?

One square foot is equivalent to the area of a square with sides that are each 1 foot in length.^[1] One square foot is equal to 144 square inches or 0.092903 square meters .

The square foot is a US customary and imperial unit of area. A square foot is sometimes also referred to as a square ft. Square feet can be abbreviated as sq ft, and are also sometimes abbreviated as ft². For example, 1 square foot can be written as 1 sq ft or 1 ft².

You can use a square footage calculator to calculate the area of a space if you know its dimensions.

Learn more about square feet.

What Is a Square Kilometer?

One square kilometer is equivalent to the area of a square with sides that are each 1 kilometer in length. One square kilometer is equal to 0.386102 square miles or 1,000,000 square meters.

The square kilometer, or square kilometre, is a multiple of the square meter, which is the SI derived unit for area. In the metric system, "kilo" is the prefix for thousands, or 10³. A square kilometer is sometimes also referred to as a square km. Square kilometers can be abbreviated as sq km, and are also sometimes abbreviated as km². For example, 1 square kilometer can be written as 1 sq km or 1 km².

Learn more about square kilometers.