METRICS
SI
is the accepted abbreviation for the metric system and stands for
the international system. Suggested orders of accuracy are as
follows:
BUILDINGS
Building
Plans are measured to the nearest millimetre.
Building
area to nearest .1 of a square metre
RENTS
$/m^{2}
per annum for commercial and $/m^{2} per week for residential
MAPS
Recommended
scale ratios are 1:50, 1:100, 1:200, and decimal multiples of these.
1:20000 is a useful scale for typical rural properties.
LENGTH
1m

100cm

1000mm

1km

1000
m


1cm

10mm

1
foot

0.305
m

1
mile

.61km.

Mortar
gap between bricks: 9.525 mm
1m

3.28'

10'

3.048m

15'

4.572m

20'

6.096m

25'

7.62m

30'

9.144m

33'

10.06m

40'

12.19m

45'

13.72m

50'

15.24m

55'

16.76m

60'

18.29m

65'

19.81m

66'

20.12m

70'

21.34m

80'

24.38m

90'

27.43m

99'

30.18m

100'

30.48m

1chain

20.12m

1m

3.28'

1link

20.12cm

1km

1000m

1mile

1.609km

AREA
1ha

10000m^{2}

2.471 acres

1km^{2}

100ha

100000 m^{2}

1ft^{2 }

0.0929 m^{2}


1perch

25.3 m^{2}


1rood

1012 m^{2}


1acre

4047 m^{2}


1mile^{2}

2.59 km^{2}


1m^{2}

10.764 ft^{2}


2acres

0.8094ha


5 acres

20235m^{2}

2.0235ha

1square (100ft^{2})

9.29m^{2}


VOLUME
1m^{3 }

1kl

1000l

1l

1000ml


1ft^{3}

0.0283m^{2}

1gal

4.55l

MASS
1kg

1000g

1t (tonne)

1000kg

1lb

453.6g

1ton

1.02t

Note
it is illegal and unprofessional to advertise in imperial units. If
an agent must use the old measurements then he/she should at least
show both metric and imperial measurements.
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