Quick Find Conversion

Square kilometers

Square kilometre (International spelling as used by the International Bureau of Weights and Measures) or square kilometer (American spelling), symbol km2, is a multiple of the square metre, the SI unit of area or surface area.

Conversion table

millibarnboardsectionattobarnhidezeptobarnsquare chain (international)barn
1 1.2916692500052 × 10-29 3.8610215854245 × 10-38 1.0 × 1015 2.0 × 10-37 1.0 × 1018 2.4710538146717 × 10-34 0.001
7.74192 × 1028 1 2.9891720232629 × 10-9 7.74192 × 1043 1.548384 × 10-8 7.74192 × 1046 1.9130700948883 × 10-5 7.74192 × 1025
2.589988110336 × 1037 334 540 800 1 2.589988110336 × 1052 5.1799762 2.589988110336 × 1055 6 400 2.589988110336 × 1034
1.0 × 10-15 1.2916692500052 × 10-44 3.8610215854245 × 10-53 1 2.0 × 10-52 1 000 2.4710538146717 × 10-49 1.0 × 10-18
5.0 × 1036 64,583,462.500258 0.1930511 5.0 × 1051 1 5.0 × 1054 1,235.5269073 5.0 × 1033
1.0 × 10-18 1.2916692500052 × 10-47 3.8610215854245 × 10-56 0.001 2.0 × 10-55 1 2.4710538146717 × 10-52 1.0 × 10-21
4.0468564224 × 1033 52 272 0.0001563 4.0468564224 × 1048 0.0008094 4.0468564224 × 1051 1 4.0468564224 × 1030
1 000 1.2916692500052 × 10-26 3.8610215854245 × 10-35 1.0 × 1018 2.0 × 10-34 1.0 × 1021 2.4710538146717 × 10-31 1