# Barns to Decares Conversion

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

to

input
= 1.0 × 10-31
= 1.0E-31
= 1.0e-31

= 2.0 × 10-31
= 2.0E-31
= 2.0e-31

= 3.0 × 10-31
= 3.0E-31
= 3.0e-31

= 4.0 × 10-31
= 4.0E-31
= 4.0e-31

= 5.0 × 10-31
= 5.0E-31
= 5.0e-31

### Quick Look: barns to decares

 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 decare 1.0 × 10-31 Da 2.0 × 10-31 Da 3.0 × 10-31 Da 4.0 × 10-31 Da 5.0 × 10-31 Da 6.0 × 10-31 Da 7.0 × 10-31 Da 8.0 × 10-31 Da 9.0 × 10-31 Da 1.0 × 10-30 Da 1.1 × 10-30 Da 1.2 × 10-30 Da 1.3 × 10-30 Da 1.4 × 10-30 Da 1.5 × 10-30 Da 1.6 × 10-30 Da 1.7 × 10-30 Da 1.8 × 10-30 Da 1.9 × 10-30 Da 2.0 × 10-30 Da 2.1 × 10-30 Da 2.2 × 10-30 Da 2.3 × 10-30 Da 2.4 × 10-30 Da 2.5 × 10-30 Da 2.6 × 10-30 Da 2.7 × 10-30 Da 2.8 × 10-30 Da 2.9 × 10-30 Da 3.0 × 10-30 Da 3.1 × 10-30 Da 3.2 × 10-30 Da 3.3 × 10-30 Da 3.4 × 10-30 Da 3.5 × 10-30 Da 3.6 × 10-30 Da 3.7 × 10-30 Da 3.8 × 10-30 Da 3.9 × 10-30 Da 4.0 × 10-30 Da 4.1 × 10-30 Da 4.2 × 10-30 Da 4.3 × 10-30 Da 4.4 × 10-30 Da 4.5 × 10-30 Da 4.6 × 10-30 Da 4.7 × 10-30 Da 4.8 × 10-30 Da 4.9 × 10-30 Da 5.0 × 10-30 Da 5.1 × 10-30 Da 5.2 × 10-30 Da 5.3 × 10-30 Da 5.4 × 10-30 Da 5.5 × 10-30 Da 5.6 × 10-30 Da 5.7 × 10-30 Da 5.8 × 10-30 Da 5.9 × 10-30 Da 6.0 × 10-30 Da 6.1 × 10-30 Da 6.2 × 10-30 Da 6.3 × 10-30 Da 6.4 × 10-30 Da 6.5 × 10-30 Da 6.6 × 10-30 Da 6.7 × 10-30 Da 6.8 × 10-30 Da 6.9 × 10-30 Da 7.0 × 10-30 Da 7.1 × 10-30 Da 7.2 × 10-30 Da 7.3 × 10-30 Da 7.4 × 10-30 Da 7.5 × 10-30 Da 7.6 × 10-30 Da 7.7 × 10-30 Da 7.8 × 10-30 Da 7.9 × 10-30 Da 8.0 × 10-30 Da 8.1 × 10-30 Da 8.2 × 10-30 Da 8.3 × 10-30 Da 8.4 × 10-30 Da 8.5 × 10-30 Da 8.6 × 10-30 Da 8.7 × 10-30 Da 8.8 × 10-30 Da 8.9 × 10-30 Da 9.0 × 10-30 Da 9.1 × 10-30 Da 9.2 × 10-30 Da 9.3 × 10-30 Da 9.4 × 10-30 Da 9.5 × 10-30 Da 9.6 × 10-30 Da 9.7 × 10-30 Da 9.8 × 10-30 Da 9.9 × 10-30 Da 1.0 × 10-29 Da

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

barnsdecaresbarnsdecares
1≡ 1.0E-316≡ 6.0E-31
2≡ 2.0E-317≡ 7.0E-31
3≡ 3.0E-318≡ 8.0E-31
4≡ 4.0E-319≡ 9.0E-31
5≡ 5.0E-3110≡ 1.0E-30

The decare (/ˈdɛkɑːr/ or /ˈdɛkɛər/) is derived from deca and are, and is equal to 10 ares or 1000 square metres. It is used in Norway and in the former Ottoman areas of the Middle East and the Balkans (Bulgaria) as a measure of land area. Instead of the name "decare", the names of traditional land measures are usually used, redefined as one decare:

• Stremma in Greece
• Dunam, dunum, donum, or dönüm in Israel, Palestine, Jordan, Lebanon, Syria and Turkey
• Mål is sometimes used for decare in Norway, from the old measure of about the same area.
Name of unitSymbolDefinitionRelation to SI unitsUnit System
decareDa

≡ 1000 m2

≡ 1000 m2

Metric system SI

### conversion table

decaresbarnsdecaresbarns
1≡ 1.0E+316≡ 6.0E+31
2≡ 2.0E+317≡ 7.0E+31
3≡ 3.0E+318≡ 8.0E+31
4≡ 4.0E+319≡ 9.0E+31
5≡ 5.0E+3110≡ 1.0E+32

barnsdecares
1≡ 1.0 × 10-31
1.0 × 1031≡ 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 …)