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.
The square inch (symbol: sq in or in2) is a unit of area in the British imperial and the United States customary systems of measurement. One square inch is equal to the area of a square with sides of one inch. It is equal to 6.4516 square centimeter or 645.16 square millimeter
| square millimeter (mm2) | square inch (in2) |
|---|---|
| 1 square millimeter | 0.0015500031000062 square inch |
| 2 square millimeters | 0.0031000062000124 square inch |
| 3 square millimeters | 0.0046500093000186 square inch |
| 4 square millimeters | 0.0062000124000248 square inch |
| 5 square millimeters | 0.007750015500031 square inch |
| 6 square millimeters | 0.0093000186000372 square inch |
| 7 square millimeters | 0.010850021700043 square inch |
| 8 square millimeters | 0.01240002480005 square inch |
| 9 square millimeters | 0.013950027900056 square inch |
| 10 square millimeters | 0.015500031000062 square inch |
| 11 square millimeters | 0.017050034100068 square inch |
| 12 square millimeters | 0.018600037200074 square inch |
| 13 square millimeters | 0.020150040300081 square inch |
| 14 square millimeters | 0.021700043400087 square inch |
| 15 square millimeters | 0.023250046500093 square inch |
| 16 square millimeters | 0.024800049600099 square inch |
| 17 square millimeters | 0.026350052700105 square inch |
| 18 square millimeters | 0.027900055800112 square inch |
| 19 square millimeters | 0.029450058900118 square inch |
| 20 square millimeters | 0.031000062000124 square inch |
| 21 square millimeters | 0.03255006510013 square inch |
| 22 square millimeters | 0.034100068200136 square inch |
| 23 square millimeters | 0.035650071300143 square inch |
| 24 square millimeters | 0.037200074400149 square inch |
| 25 square millimeters | 0.038750077500155 square inch |
| 26 square millimeters | 0.040300080600161 square inch |
| 27 square millimeters | 0.041850083700167 square inch |
| 28 square millimeters | 0.043400086800174 square inch |
| 29 square millimeters | 0.04495008990018 square inch |
| 30 square millimeters | 0.046500093000186 square inch |
| 31 square millimeters | 0.048050096100192 square inch |
| 32 square millimeters | 0.049600099200198 square inch |
| 33 square millimeters | 0.051150102300205 square inch |
| 34 square millimeters | 0.052700105400211 square inch |
| 35 square millimeters | 0.054250108500217 square inch |
| 36 square millimeters | 0.055800111600223 square inch |
| 37 square millimeters | 0.057350114700229 square inch |
| 38 square millimeters | 0.058900117800236 square inch |
| 39 square millimeters | 0.060450120900242 square inch |
| 40 square millimeters | 0.062000124000248 square inch |
| 41 square millimeters | 0.063550127100254 square inch |
| 42 square millimeters | 0.06510013020026 square inch |
| 43 square millimeters | 0.066650133300267 square inch |
| 44 square millimeters | 0.068200136400273 square inch |
| 45 square millimeters | 0.069750139500279 square inch |
| 46 square millimeters | 0.071300142600285 square inch |
| 47 square millimeters | 0.072850145700291 square inch |
| 48 square millimeters | 0.074400148800298 square inch |
| 49 square millimeters | 0.075950151900304 square inch |
| 50 square millimeters | 0.07750015500031 square inch |
| 51 square millimeters | 0.079050158100316 square inch |
| 52 square millimeters | 0.080600161200322 square inch |
| 53 square millimeters | 0.082150164300329 square inch |
| 54 square millimeters | 0.083700167400335 square inch |
| 55 square millimeters | 0.085250170500341 square inch |
| 56 square millimeters | 0.086800173600347 square inch |
| 57 square millimeters | 0.088350176700353 square inch |
| 58 square millimeters | 0.08990017980036 square inch |
| 59 square millimeters | 0.091450182900366 square inch |
| 60 square millimeters | 0.093000186000372 square inch |
| 61 square millimeters | 0.094550189100378 square inch |
| 62 square millimeters | 0.096100192200384 square inch |
| 63 square millimeters | 0.097650195300391 square inch |
| 64 square millimeters | 0.099200198400397 square inch |
| 65 square millimeters | 0.1007502015004 square inch |
| 66 square millimeters | 0.10230020460041 square inch |
| 67 square millimeters | 0.10385020770042 square inch |
| 68 square millimeters | 0.10540021080042 square inch |
| 69 square millimeters | 0.10695021390043 square inch |
| 70 square millimeters | 0.10850021700043 square inch |
| 71 square millimeters | 0.11005022010044 square inch |
| 72 square millimeters | 0.11160022320045 square inch |
| 73 square millimeters | 0.11315022630045 square inch |
| 74 square millimeters | 0.11470022940046 square inch |
| 75 square millimeters | 0.11625023250046 square inch |
| 76 square millimeters | 0.11780023560047 square inch |
| 77 square millimeters | 0.11935023870048 square inch |
| 78 square millimeters | 0.12090024180048 square inch |
| 79 square millimeters | 0.12245024490049 square inch |
| 80 square millimeters | 0.1240002480005 square inch |
| 81 square millimeters | 0.1255502511005 square inch |
| 82 square millimeters | 0.12710025420051 square inch |
| 83 square millimeters | 0.12865025730051 square inch |
| 84 square millimeters | 0.13020026040052 square inch |
| 85 square millimeters | 0.13175026350053 square inch |
| 86 square millimeters | 0.13330026660053 square inch |
| 87 square millimeters | 0.13485026970054 square inch |
| 88 square millimeters | 0.13640027280055 square inch |
| 89 square millimeters | 0.13795027590055 square inch |
| 90 square millimeters | 0.13950027900056 square inch |
| 91 square millimeters | 0.14105028210056 square inch |
| 92 square millimeters | 0.14260028520057 square inch |
| 93 square millimeters | 0.14415028830058 square inch |
| 94 square millimeters | 0.14570029140058 square inch |
| 95 square millimeters | 0.14725029450059 square inch |
| 96 square millimeters | 0.1488002976006 square inch |
| 97 square millimeters | 0.1503503007006 square inch |
| 98 square millimeters | 0.15190030380061 square inch |
| 99 square millimeters | 0.15345030690061 square inch |
| 100 square millimeters | 0.15500031000062 square inch |
| 150 square millimeters | 0.23250046500093 square inch |
| 200 square millimeters | 0.31000062000124 square inch |
| 250 square millimeters | 0.38750077500155 square inch |
| 300 square millimeters | 0.46500093000186 square inch |
| 350 square millimeters | 0.54250108500217 square inch |
| 400 square millimeters | 0.62000124000248 square inch |
| 450 square millimeters | 0.69750139500279 square inch |
| 500 square millimeters | 0.7750015500031 square inch |
| 550 square millimeters | 0.85250170500341 square inch |
| 600 square millimeters | 0.93000186000372 square inch |
| 650 square millimeters | 1.007502015004 square inches |
| 700 square millimeters | 1.0850021700043 square inches |
| 750 square millimeters | 1.1625023250047 square inches |
| 800 square millimeters | 1.240002480005 square inches |
| 850 square millimeters | 1.3175026350053 square inches |
| 900 square millimeters | 1.3950027900056 square inches |
| 950 square millimeters | 1.4725029450059 square inches |
| 1000 square millimeters | 1.5500031000062 square inches |
| 1500 square millimeters | 2.3250046500093 square inches |
| 2000 square millimeters | 3.1000062000124 square inches |
| 2500 square millimeters | 3.8750077500155 square inches |
| 3000 square millimeters | 4.6500093000186 square inches |
| 3500 square millimeters | 5.4250108500217 square inches |
| 4000 square millimeters | 6.2000124000248 square inches |
| 4500 square millimeters | 6.9750139500279 square inches |
| 5000 square millimeters | 7.750015500031 square inches |
| 5500 square millimeters | 8.5250170500341 square inches |
| 6000 square millimeters | 9.3000186000372 square inches |
| 6500 square millimeters | 10.07502015004 square inches |
| 7000 square millimeters | 10.850021700043 square inches |
| 7500 square millimeters | 11.625023250046 square inches |
| 8000 square millimeters | 12.40002480005 square inches |
| 8500 square millimeters | 13.175026350053 square inches |
| 9000 square millimeters | 13.950027900056 square inches |
| 9500 square millimeters | 14.725029450059 square inches |
| 10000 square millimeters | 15.500031000062 square inches |
| 15000 square millimeters | 23.250046500093 square inches |
| 20000 square millimeters | 31.000062000124 square inches |
| 25000 square millimeters | 38.750077500155 square inches |
| 30000 square millimeters | 46.500093000186 square inches |
| 35000 square millimeters | 54.250108500217 square inches |
| 40000 square millimeters | 62.000124000248 square inches |
| 45000 square millimeters | 69.750139500279 square inches |
| 50000 square millimeters | 77.50015500031 square inches |
| 55000 square millimeters | 85.250170500341 square inches |
| 60000 square millimeters | 93.000186000372 square inches |
| 65000 square millimeters | 100.7502015004 square inches |
| 70000 square millimeters | 108.50021700043 square inches |
| 75000 square millimeters | 116.25023250047 square inches |
| 80000 square millimeters | 124.0002480005 square inches |
| 85000 square millimeters | 131.75026350053 square inches |
| 90000 square millimeters | 139.50027900056 square inches |
| 95000 square millimeters | 147.25029450059 square inches |
| 100000 square millimeters | 155.00031000062 square inches |