Unités impériales

inch

lien

pied

yard

pôle

chaîne

furlong

mile

ligue

metre

1 pouce

1

_​25⁄198

_​1⁄12

_​1⁄36

​1⁄198

_​1⁄792

_​1⁄7,920

_{​1⁄63,360}

_{​1⁄190,080}

0.0254

1 lien

7+​23⁄25

1

_​33⁄50

_​11⁄50

​1⁄25

_​1⁄100

_​1⁄1,000

_​1⁄8,000

_{​1⁄24,000}

0.201168

1 pied

12

1+​17⁄33

1

_​1⁄3

​2⁄33

_​1⁄66

_​1⁄660

_​1⁄5,280

_{​1⁄15,840}

0.3048

1 mètre

36

4+​6⁄11

3

1

​2⁄11

_​1⁄22

_​1⁄220

_​1⁄1,760

_​1⁄5,280

0.9144

1 pôle

198

25

16+​1⁄2

5+​1⁄2

1

_​1⁄4

_​1⁄40

_​1⁄320

​1⁄960

5.0292

1 chaîne

792

100

66

22

4

1

_​1⁄10

_​1⁄80

​1⁄240

20.1168

1 furlong

7,920

1,000

660

220

40

10

1

_​1⁄8

​1⁄24

201.168

1 mile

63,360

8,000

5,280

1,760

320

80

8

1

​1⁄3

1,609.344

1 ligue

190,080

24,000

15,840

5,280

960

240

24

3

1

4,828.032

Dérivé

Tiges carrées (poteaux carrés)

Milles carrés

Pieds carrés

Hectares (métriques)

Mètres carrés (métrique)

1 pied carré

= 1 pied x 1 pied

= 0,
003673095baguettes carrées

= 0,
00000003587mille carré

= 1 pied carré

= 0,000009289257 ha

= 0.09290304 m²

1 perche

= 1 tige × 1 tige

= 1 tige carrée

= _1⁄102400 square mile

= 272,25 pieds carrés

= 0,002529 ha

= 25.29285264 m²

1 jubilé

= 1 furlong × 1 tige

= 40 tiges carrées

= _1⁄2560 square mile

= 10890 pieds carrés

= 0,10117141056 ha

= 1011.7141056 m²

1 acre

= 1 furlong × 1 chaîne

= 160 tiges carrées

= _1⁄640 square mile

= 43560 pieds carrés

= 0,40468564224 ha

= 4046.8564224 m²

Liquid

once

gill

pinte

quart

gallon

litre

1 once (liquide)

1

_​1⁄5

_​1⁄20

_​1⁄40

​1⁄160

0.028 413

1 branchie

5

1

_​1⁄4

_​1⁄8

​1⁄32

0.142 065

1 pinte

20

4

1

_​1⁄2

​1⁄8

0.568 261

1 litre

40

8

2

1

​1⁄4

1.136 522

1 gallon

160

32

8

4

1

4.546 09

Sec

1 peck

= 2 gal

= 9.092 18 L

1 kenning ou seau

= 2 pecks

= 4 gal

= 18.184 36 L

1 boisseau

= 2 kennings

= 4 pecks

= 8 gal

= 36.368 72 L

1 grève

= 2 boisseaux

= 16 gal

= 72.737 44 L

1 quart ou seau

= 8 boisseaux

= 64 gal

= 290.949 76 L

1 chaldron

= 4 trimestres

= 32 boisseaux

= 256 gal

= 1163.799 04 L

1 dernier

= 10 trimestres

= 80 boisseaux

= 640 gal

= 2909.497 6 L

Brasserie

1 sapin

= 9 gal

= 40.914 81 L

1 kilderkin

= 2 firkin

= 18 gal

= 81.829 62 L

1 baril

= 2 kilderkin

= 4 firkin

= 36 gal

= 163.659 24 L

1 tête de cochon

= 3 kilderkin

= 6 firkin

= 54 gal

= 245.488 86 L

Mesure concernant les apothicaires

1 minimum

= 0,059 193 880 208¯3 mL

1 (fluide) scrupule

= 20 minimums

= 1,183 877 604 1¯6 mL

1 (fluide) dram ou fluidram

= 3 scrupules

= 60 minimums

= 3,551 632 812 5 ml

1 once liquide

= 8 drachmes

= 480 minimums

= 28.413 062 5 mL

1 pinte

= 20 onces

= 568.261 25 mL

1 gallon

= 8 pintes

= 160 onces

= 4.546 09 L

1 grain

= 64,798 91 mg

1 drachme

= 1/16 d'once

= 1/256 livre

= 1.771 845 195 312 5 g

1 once

= 1/16 livre

= 28.349 523 125 g

1 livre

= 7000 grains

= 453.592 37 g

1 pierre

= 14 livres

= 6.350 293 18 kg

1 trimestre

= 2 pierre

= 28 livres

= 12.700 586 36 kg

1 cent livres

= 4 trimestres

= 112 livres

= 50,802 345 44 kg

1 tonne

= 20 cent livres

= 2240 livres

= 1016.046 908 8 kg