Data Sheet

CONVERSIONS 

LENGTH

1 link= 0.201168 metres
100 links = 20.12 metres
(most road widths)
50 links = 10.06 metres
1 foot = 0.3048 metres
1 mile = 1.609 kilometres
1 inch = 2.54 centimetres

1 chain:
= 100 links
= 22 yards
= 66 feet
= 792 inches
= 20.12 metres

1 mile:
= 80 chains
= 1760 yards
= 63360 inches

1 metre:
= 4.97097 links

SCALES

Imperial Metric

1 chain to an inch = 1 : 792
2 chains to an inch = 1 : 1584
10 links to an inch = 1 : 79
20 links to an inch = 1 : 158

AREA

1 hectare:
= 2 acres + 1 rood + 35.38 perches

1 acre:
= 0.4047 hectares
= 4 roods

1 rood:
= 1012 metres squared
= 40 perches

1 perch":
= 25.292853 metres squared

COMMON PAPER SIZES
(millimetres)

A4 = 210 X 297
A3 = 297 X 420
A2 = 420 X 594
A1 = 594 X 841
A0 = 841 X 1189