The square millimeter (symbol: sq mm or mm2) is a unit of area in the metric system. Meter is the SI base unit of length. There are one thousand millimeters in a meter. There are ten millimeters in a centimeter.
One millimeter is equal to 1000 micrometers or 1000000 nanometers.
A square kilometer (symbol: sq km or km2) is equal to one million square meters. One square kilometer is approximately 0.39 square miles. Large areas of land are expressed in square kilometer -- for example area of a city or a forest.
| square millimeter (mm2) | square kilometer (km2) |
|---|---|
| 1 square millimeter | 1.0E-12 square kilometer |
| 2 square millimeters | 2.0E-12 square kilometer |
| 3 square millimeters | 3.0E-12 square kilometer |
| 4 square millimeters | 4.0E-12 square kilometer |
| 5 square millimeters | 5.0E-12 square kilometer |
| 6 square millimeters | 6.0E-12 square kilometer |
| 7 square millimeters | 7.0E-12 square kilometer |
| 8 square millimeters | 8.0E-12 square kilometer |
| 9 square millimeters | 9.0E-12 square kilometer |
| 10 square millimeters | 1.0E-11 square kilometer |
| 11 square millimeters | 1.1E-11 square kilometer |
| 12 square millimeters | 1.2E-11 square kilometer |
| 13 square millimeters | 1.3E-11 square kilometer |
| 14 square millimeters | 1.4E-11 square kilometer |
| 15 square millimeters | 1.5E-11 square kilometer |
| 16 square millimeters | 1.6E-11 square kilometer |
| 17 square millimeters | 1.7E-11 square kilometer |
| 18 square millimeters | 1.8E-11 square kilometer |
| 19 square millimeters | 1.9E-11 square kilometer |
| 20 square millimeters | 2.0E-11 square kilometer |
| 21 square millimeters | 2.1E-11 square kilometer |
| 22 square millimeters | 2.2E-11 square kilometer |
| 23 square millimeters | 2.3E-11 square kilometer |
| 24 square millimeters | 2.4E-11 square kilometer |
| 25 square millimeters | 2.5E-11 square kilometer |
| 26 square millimeters | 2.6E-11 square kilometer |
| 27 square millimeters | 2.7E-11 square kilometer |
| 28 square millimeters | 2.8E-11 square kilometer |
| 29 square millimeters | 2.9E-11 square kilometer |
| 30 square millimeters | 3.0E-11 square kilometer |
| 31 square millimeters | 3.1E-11 square kilometer |
| 32 square millimeters | 3.2E-11 square kilometer |
| 33 square millimeters | 3.3E-11 square kilometer |
| 34 square millimeters | 3.4E-11 square kilometer |
| 35 square millimeters | 3.5E-11 square kilometer |
| 36 square millimeters | 3.6E-11 square kilometer |
| 37 square millimeters | 3.7E-11 square kilometer |
| 38 square millimeters | 3.8E-11 square kilometer |
| 39 square millimeters | 3.9E-11 square kilometer |
| 40 square millimeters | 4.0E-11 square kilometer |
| 41 square millimeters | 4.1E-11 square kilometer |
| 42 square millimeters | 4.2E-11 square kilometer |
| 43 square millimeters | 4.3E-11 square kilometer |
| 44 square millimeters | 4.4E-11 square kilometer |
| 45 square millimeters | 4.5E-11 square kilometer |
| 46 square millimeters | 4.6E-11 square kilometer |
| 47 square millimeters | 4.7E-11 square kilometer |
| 48 square millimeters | 4.8E-11 square kilometer |
| 49 square millimeters | 4.9E-11 square kilometer |
| 50 square millimeters | 5.0E-11 square kilometer |
| 51 square millimeters | 5.1E-11 square kilometer |
| 52 square millimeters | 5.2E-11 square kilometer |
| 53 square millimeters | 5.3E-11 square kilometer |
| 54 square millimeters | 5.4E-11 square kilometer |
| 55 square millimeters | 5.5E-11 square kilometer |
| 56 square millimeters | 5.6E-11 square kilometer |
| 57 square millimeters | 5.7E-11 square kilometer |
| 58 square millimeters | 5.8E-11 square kilometer |
| 59 square millimeters | 5.9E-11 square kilometer |
| 60 square millimeters | 6.0E-11 square kilometer |
| 61 square millimeters | 6.1E-11 square kilometer |
| 62 square millimeters | 6.2E-11 square kilometer |
| 63 square millimeters | 6.3E-11 square kilometer |
| 64 square millimeters | 6.4E-11 square kilometer |
| 65 square millimeters | 6.5E-11 square kilometer |
| 66 square millimeters | 6.6E-11 square kilometer |
| 67 square millimeters | 6.7E-11 square kilometer |
| 68 square millimeters | 6.8E-11 square kilometer |
| 69 square millimeters | 6.9E-11 square kilometer |
| 70 square millimeters | 7.0E-11 square kilometer |
| 71 square millimeters | 7.1E-11 square kilometer |
| 72 square millimeters | 7.2E-11 square kilometer |
| 73 square millimeters | 7.3E-11 square kilometer |
| 74 square millimeters | 7.4E-11 square kilometer |
| 75 square millimeters | 7.5E-11 square kilometer |
| 76 square millimeters | 7.6E-11 square kilometer |
| 77 square millimeters | 7.7E-11 square kilometer |
| 78 square millimeters | 7.8E-11 square kilometer |
| 79 square millimeters | 7.9E-11 square kilometer |
| 80 square millimeters | 8.0E-11 square kilometer |
| 81 square millimeters | 8.1E-11 square kilometer |
| 82 square millimeters | 8.2E-11 square kilometer |
| 83 square millimeters | 8.3E-11 square kilometer |
| 84 square millimeters | 8.4E-11 square kilometer |
| 85 square millimeters | 8.5E-11 square kilometer |
| 86 square millimeters | 8.6E-11 square kilometer |
| 87 square millimeters | 8.7E-11 square kilometer |
| 88 square millimeters | 8.8E-11 square kilometer |
| 89 square millimeters | 8.9E-11 square kilometer |
| 90 square millimeters | 9.0E-11 square kilometer |
| 91 square millimeters | 9.1E-11 square kilometer |
| 92 square millimeters | 9.2E-11 square kilometer |
| 93 square millimeters | 9.3E-11 square kilometer |
| 94 square millimeters | 9.4E-11 square kilometer |
| 95 square millimeters | 9.5E-11 square kilometer |
| 96 square millimeters | 9.6E-11 square kilometer |
| 97 square millimeters | 9.7E-11 square kilometer |
| 98 square millimeters | 9.8E-11 square kilometer |
| 99 square millimeters | 9.9E-11 square kilometer |
| 100 square millimeters | 1.0E-10 square kilometer |
| 150 square millimeters | 1.5E-10 square kilometer |
| 200 square millimeters | 2.0E-10 square kilometer |
| 250 square millimeters | 2.5E-10 square kilometer |
| 300 square millimeters | 3.0E-10 square kilometer |
| 350 square millimeters | 3.5E-10 square kilometer |
| 400 square millimeters | 4.0E-10 square kilometer |
| 450 square millimeters | 4.5E-10 square kilometer |
| 500 square millimeters | 5.0E-10 square kilometer |
| 550 square millimeters | 5.5E-10 square kilometer |
| 600 square millimeters | 6.0E-10 square kilometer |
| 650 square millimeters | 6.5E-10 square kilometer |
| 700 square millimeters | 7.0E-10 square kilometer |
| 750 square millimeters | 7.5E-10 square kilometer |
| 800 square millimeters | 8.0E-10 square kilometer |
| 850 square millimeters | 8.5E-10 square kilometer |
| 900 square millimeters | 9.0E-10 square kilometer |
| 950 square millimeters | 9.5E-10 square kilometer |
| 1000 square millimeters | 1.0E-9 square kilometer |
| 1500 square millimeters | 1.5E-9 square kilometer |
| 2000 square millimeters | 2.0E-9 square kilometer |
| 2500 square millimeters | 2.5E-9 square kilometer |
| 3000 square millimeters | 3.0E-9 square kilometer |
| 3500 square millimeters | 3.5E-9 square kilometer |
| 4000 square millimeters | 4.0E-9 square kilometer |
| 4500 square millimeters | 4.5E-9 square kilometer |
| 5000 square millimeters | 5.0E-9 square kilometer |
| 5500 square millimeters | 5.5E-9 square kilometer |
| 6000 square millimeters | 6.0E-9 square kilometer |
| 6500 square millimeters | 6.5E-9 square kilometer |
| 7000 square millimeters | 7.0E-9 square kilometer |
| 7500 square millimeters | 7.5E-9 square kilometer |
| 8000 square millimeters | 8.0E-9 square kilometer |
| 8500 square millimeters | 8.5E-9 square kilometer |
| 9000 square millimeters | 9.0E-9 square kilometer |
| 9500 square millimeters | 9.5E-9 square kilometer |
| 10000 square millimeters | 1.0E-8 square kilometer |
| 15000 square millimeters | 1.5E-8 square kilometer |
| 20000 square millimeters | 2.0E-8 square kilometer |
| 25000 square millimeters | 2.5E-8 square kilometer |
| 30000 square millimeters | 3.0E-8 square kilometer |
| 35000 square millimeters | 3.5E-8 square kilometer |
| 40000 square millimeters | 4.0E-8 square kilometer |
| 45000 square millimeters | 4.5E-8 square kilometer |
| 50000 square millimeters | 5.0E-8 square kilometer |
| 55000 square millimeters | 5.5E-8 square kilometer |
| 60000 square millimeters | 6.0E-8 square kilometer |
| 65000 square millimeters | 6.5E-8 square kilometer |
| 70000 square millimeters | 7.0E-8 square kilometer |
| 75000 square millimeters | 7.5E-8 square kilometer |
| 80000 square millimeters | 8.0E-8 square kilometer |
| 85000 square millimeters | 8.5E-8 square kilometer |
| 90000 square millimeters | 9.0E-8 square kilometer |
| 95000 square millimeters | 9.5E-8 square kilometer |
| 100000 square millimeters | 1.0E-7 square kilometer |