# Barns to Attobarns Conversion

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

### Area Conversion

to

input
= 1,000,000,000,000,000,000.00000000
= 1.0 × 1018
= 1.0E+18
= 1.0e+18

= 2,000,000,000,000,000,000.00000000
= 2.0 × 1018
= 2.0E+18
= 2.0e+18

= 3,000,000,000,000,000,000.00000000
= 3.0 × 1018
= 3.0E+18
= 3.0e+18

= 4,000,000,000,000,000,000.00000000
= 4.0 × 1018
= 4.0E+18
= 4.0e+18

= 5,000,000,000,000,000,000.00000000
= 5.0 × 1018
= 5.0E+18
= 5.0e+18

### Quick Look: barns to attobarns

 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 attobarn 1.0 × 1018 ab 2.0 × 1018 ab 3.0 × 1018 ab 4.0 × 1018 ab 5.0 × 1018 ab 6.0 × 1018 ab 7.0 × 1018 ab 8.0 × 1018 ab 9.0 × 1018 ab 1.0 × 1019 ab 1.1 × 1019 ab 1.2 × 1019 ab 1.3 × 1019 ab 1.4 × 1019 ab 1.5 × 1019 ab 1.6 × 1019 ab 1.7 × 1019 ab 1.8 × 1019 ab 1.9 × 1019 ab 2.0 × 1019 ab 2.1 × 1019 ab 2.2 × 1019 ab 2.3 × 1019 ab 2.4 × 1019 ab 2.5 × 1019 ab 2.6 × 1019 ab 2.7 × 1019 ab 2.8 × 1019 ab 2.9 × 1019 ab 3.0 × 1019 ab 3.1 × 1019 ab 3.2 × 1019 ab 3.3 × 1019 ab 3.4 × 1019 ab 3.5 × 1019 ab 3.6 × 1019 ab 3.7 × 1019 ab 3.8 × 1019 ab 3.9 × 1019 ab 4.0 × 1019 ab 4.1 × 1019 ab 4.2 × 1019 ab 4.3 × 1019 ab 4.4 × 1019 ab 4.5 × 1019 ab 4.6 × 1019 ab 4.7 × 1019 ab 4.8 × 1019 ab 4.9 × 1019 ab 5.0 × 1019 ab 5.1 × 1019 ab 5.2 × 1019 ab 5.3 × 1019 ab 5.4 × 1019 ab 5.5 × 1019 ab 5.6 × 1019 ab 5.7 × 1019 ab 5.8 × 1019 ab 5.9 × 1019 ab 6.0 × 1019 ab 6.1 × 1019 ab 6.2 × 1019 ab 6.3 × 1019 ab 6.4 × 1019 ab 6.5 × 1019 ab 6.6 × 1019 ab 6.7 × 1019 ab 6.8 × 1019 ab 6.9 × 1019 ab 7.0 × 1019 ab 7.1 × 1019 ab 7.2 × 1019 ab 7.3 × 1019 ab 7.4 × 1019 ab 7.5 × 1019 ab 7.6 × 1019 ab 7.7 × 1019 ab 7.8 × 1019 ab 7.9 × 1019 ab 8.0 × 1019 ab 8.1 × 1019 ab 8.2 × 1019 ab 8.3 × 1019 ab 8.4 × 1019 ab 8.5 × 1019 ab 8.6 × 1019 ab 8.7 × 1019 ab 8.8 × 1019 ab 8.9 × 1019 ab 9.0 × 1019 ab 9.1 × 1019 ab 9.2 × 1019 ab 9.3 × 1019 ab 9.4 × 1019 ab 9.5 × 1019 ab 9.6 × 1019 ab 9.7 × 1019 ab 9.8 × 1019 ab 9.9 × 1019 ab 1.0 × 1020 ab

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

barnsattobarnsbarnsattobarns
1≡ 1.0E+186≡ 6.0E+18
2≡ 2.0E+187≡ 7.0E+18
3≡ 3.0E+188≡ 8.0E+18
4≡ 4.0E+189≡ 9.0E+18
5≡ 5.0E+1810≡ 1.0E+19

A attobarn (symbol: ab) is a unit of area equal to 10−46 m2.

Name of unitSymbolDefinitionRelation to SI unitsUnit System
attobarnab

≡ 10−46 m2

≡ 10−46 m2

Nuclear Physics

### conversion table

attobarnsbarnsattobarnsbarns
1≡ 1.0E-186≡ 6.0E-18
2≡ 2.0E-187≡ 7.0E-18
3≡ 3.0E-188≡ 8.0E-18
4≡ 4.0E-189≡ 9.0E-18
5≡ 5.0E-1810≡ 1.0E-17

barnsattobarns
1≡ 1.0 × 1018
1.0 × 10-18≡ 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 …)