# Barns to Square millimeters Conversion

Barn to square millimeter conversion allow you make a conversion between barn and square millimeter easily. You can find the tool in the following.

to

input
= 1.0 × 10-22
= 1.0E-22
= 1.0e-22

= 2.0 × 10-22
= 2.0E-22
= 2.0e-22

= 3.0 × 10-22
= 3.0E-22
= 3.0e-22

= 4.0 × 10-22
= 4.0E-22
= 4.0e-22

= 5.0 × 10-22
= 5.0E-22
= 5.0e-22

### Quick Look: barns to square millimeters

 barn 1 b 2 b 3 b 4 b 5 b 6 b 7 b 8 b 9 b 10 b 11 b 12 b 13 b 14 b 15 b 16 b 17 b 18 b 19 b 20 b 21 b 22 b 23 b 24 b 25 b 26 b 27 b 28 b 29 b 30 b 31 b 32 b 33 b 34 b 35 b 36 b 37 b 38 b 39 b 40 b 41 b 42 b 43 b 44 b 45 b 46 b 47 b 48 b 49 b 50 b 51 b 52 b 53 b 54 b 55 b 56 b 57 b 58 b 59 b 60 b 61 b 62 b 63 b 64 b 65 b 66 b 67 b 68 b 69 b 70 b 71 b 72 b 73 b 74 b 75 b 76 b 77 b 78 b 79 b 80 b 81 b 82 b 83 b 84 b 85 b 86 b 87 b 88 b 89 b 90 b 91 b 92 b 93 b 94 b 95 b 96 b 97 b 98 b 99 b 100 b square millimeter 1.0 × 10-22 mm2 2.0 × 10-22 mm2 3.0 × 10-22 mm2 4.0 × 10-22 mm2 5.0 × 10-22 mm2 6.0 × 10-22 mm2 7.0 × 10-22 mm2 8.0 × 10-22 mm2 9.0 × 10-22 mm2 1.0 × 10-21 mm2 1.1 × 10-21 mm2 1.2 × 10-21 mm2 1.3 × 10-21 mm2 1.4 × 10-21 mm2 1.5 × 10-21 mm2 1.6 × 10-21 mm2 1.7 × 10-21 mm2 1.8 × 10-21 mm2 1.9 × 10-21 mm2 2.0 × 10-21 mm2 2.1 × 10-21 mm2 2.2 × 10-21 mm2 2.3 × 10-21 mm2 2.4 × 10-21 mm2 2.5 × 10-21 mm2 2.6 × 10-21 mm2 2.7 × 10-21 mm2 2.8 × 10-21 mm2 2.9 × 10-21 mm2 3.0 × 10-21 mm2 3.1 × 10-21 mm2 3.2 × 10-21 mm2 3.3 × 10-21 mm2 3.4 × 10-21 mm2 3.5 × 10-21 mm2 3.6 × 10-21 mm2 3.7 × 10-21 mm2 3.8 × 10-21 mm2 3.9 × 10-21 mm2 4.0 × 10-21 mm2 4.1 × 10-21 mm2 4.2 × 10-21 mm2 4.3 × 10-21 mm2 4.4 × 10-21 mm2 4.5 × 10-21 mm2 4.6 × 10-21 mm2 4.7 × 10-21 mm2 4.8 × 10-21 mm2 4.9 × 10-21 mm2 5.0 × 10-21 mm2 5.1 × 10-21 mm2 5.2 × 10-21 mm2 5.3 × 10-21 mm2 5.4 × 10-21 mm2 5.5 × 10-21 mm2 5.6 × 10-21 mm2 5.7 × 10-21 mm2 5.8 × 10-21 mm2 5.9 × 10-21 mm2 6.0 × 10-21 mm2 6.1 × 10-21 mm2 6.2 × 10-21 mm2 6.3 × 10-21 mm2 6.4 × 10-21 mm2 6.5 × 10-21 mm2 6.6 × 10-21 mm2 6.7 × 10-21 mm2 6.8 × 10-21 mm2 6.9 × 10-21 mm2 7.0 × 10-21 mm2 7.1 × 10-21 mm2 7.2 × 10-21 mm2 7.3 × 10-21 mm2 7.4 × 10-21 mm2 7.5 × 10-21 mm2 7.6 × 10-21 mm2 7.7 × 10-21 mm2 7.8 × 10-21 mm2 7.9 × 10-21 mm2 8.0 × 10-21 mm2 8.1 × 10-21 mm2 8.2 × 10-21 mm2 8.3 × 10-21 mm2 8.4 × 10-21 mm2 8.5 × 10-21 mm2 8.6 × 10-21 mm2 8.7 × 10-21 mm2 8.8 × 10-21 mm2 8.9 × 10-21 mm2 9.0 × 10-21 mm2 9.1 × 10-21 mm2 9.2 × 10-21 mm2 9.3 × 10-21 mm2 9.4 × 10-21 mm2 9.5 × 10-21 mm2 9.6 × 10-21 mm2 9.7 × 10-21 mm2 9.8 × 10-21 mm2 9.9 × 10-21 mm2 1.0 × 10-20 mm2

A barn (symbol: b) is a unit of area equal to 10−28 m2 (100 fm2). Originally used in nuclear physics for expressing the cross sectional area of nuclei and nuclear reactions, today it is also used in all fields of high-energy physics to express the cross sections of any scattering process, and is best understood as a measure of the probability of interaction between small particles.

Name of unitSymbolDefinitionRelation to SI unitsUnit System
barnb

≡ 10−28 m2

≡ 10−28 m2

Nuclear Physics

#### conversion table

barnssquare millimetersbarnssquare millimeters
1= 1.0E-226= 6.0E-22
2= 2.0E-227= 7.0E-22
3= 3.0E-228= 8.0E-22
4= 4.0E-229= 9.0E-22
5= 5.0E-2210= 1.0E-21

Square millimetre or Square millimeter is a SI prefixes applied unit of area, symbol mm2, is a multiple of the of SI prefixes (milli) used with the metre.

Name of unitSymbolDefinitionRelation to SI unitsUnit System
square millimetermm2

≡ 1 mm × 1 mm ≡ 10-3 m × 10-3 m

= 10-6 m2

Metric system SI

### conversion table

square millimetersbarnssquare millimetersbarns
1= 1.0E+226= 6.0E+22
2= 2.0E+227= 7.0E+22
3= 3.0E+228= 8.0E+22
4= 4.0E+229= 9.0E+22
5= 5.0E+2210= 1.0E+23

### Conversion table

barnssquare millimeters
1= 1.0 × 10-22
1.0 × 1022= 1

### Legend

SymbolDefinition
exactly equal
approximately equal to
=equal to
digitsindicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …)