Free calculators and unit converters for general and everyday use.
Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can convert area values from square inches to square km and square km to square inches.
1 square km = 1550003100.0062 square inches
1 square inch = 0 square km
The symbols used are sq in for square inch and km2 for square km.
Convert 1000 square inches to square km
1000 sq in = 1000*0 km2 = 6.0E-7 km2