12.
CONVERSION TABLES FOR FORESTERS
Abbreviations used in the tables:
ac acre
kWh kilowatt hour
BTU British Thermal
Unit L litre
c circumference
lb pound weight
chn
chain
m metre
cwt hundred weight
ml millilitre
d
diameter mm millimetre
ft
foot Mw
megawatt
gal gallon, Imperial
Mwh megawatthour
g
gramme
Mwy megawatt year
hp
horse-power
oz ounce weight
in
inch QG
quarter girth
kca
kilocalorie sec second
kg
kilogramme
t tonne
km
kilometre
yd yard
kW kilowatt
1. LENGTH
AND DISTANCE
|
in |
x
2.540 |
= |
miles |
x
1.609 |
= |
|
|
=
0.3937 |
x
cm |
|
=
0.6214 |
x
km |
|
in
c |
x
0.8085 |
= |
yd/ac |
x
2.259 |
= |
|
|
=
1.237 |
x
cm d |
|
=
0.4426 |
x
m/ha |
|
ft |
x
0.3048 |
= |
miles/mile2 |
x
0.6213 |
= |
|
|
=
3.281 |
x m |
|
=
1.610 |
x
km/km2 |
|
ft c |
x
9.702 |
= |
m/ha |
x
0.10 |
= |
|
|
=
0.1031 |
x
cm d |
|
=
10 |
x
km/km2 |
|
yd |
x
0.9144 |
= |
ft/sec |
x
1.097 |
= |
|
|
=
1.094 |
x
m |
|
=
0.9113 |
x
km/hr |
|
chn |
x
20.12 |
= |
m/sec |
x
3.60 |
= |
|
|
=
0.0497 |
x
m |
|
=
0.2778 |
x
km/hr |
2. AREA
AND SECTION
|
in2
|
x
6.452 |
= |
(ft
QG)2/ac |
x
0.2922 |
= |
|
|
=
0.1550 |
x
cm2 |
|
=
3.423 |
x
m2/ha |
|
(in
d)2 |
x
5.067 |
= |
yd2 |
x
0.8361 |
= |
|
|
=
0.1974 |
x
cm2 section |
|
=
1.196 |
x
m2 |
|
(in
c)2 |
x
0.5134 |
= |
chn2
|
x
0.04047 |
= |
|
|
=
1.948 |
x
cm2 section |
|
=
24.71 |
x
m2 |
|
(in
QG)2 |
x 8.214 |
= |
mile2 |
x
2.590 |
= |
|
|
x 0.1217 |
x
cm2 section |
|
=
0.3861 |
x
km2 |
|
ft2
|
x 0.09290 |
= |
ac
|
x
0.4047 |
= |
|
|
=
10.76 |
x
m2 |
|
=
2.471 |
x
ha |
|
(ft.d)2 |
x 0.07297 |
= |
arpent |
x
0.4209 |
= |
|
|
=
13.71 |
x
m2 section |
|
=
2.376 |
x
ha |
|
(ft
c)2 |
x 0.007393 |
= |
feddan |
x
0.420 |
= |
|
|
=
135.3 |
x
m2 section |
|
=
2.380 |
x
ha |
|
(ft
QG)2 |
x 0.1183 |
= |
donum |
x
0.1338 |
= |
|
|
= 8.454 |
x
m2 section |
|
=
7.475 |
x
ha |
|
ft
2/ac |
x 0.2296 |
= |
morgen |
x
0.8567 |
= |
|
|
= 4.356 |
x
m2/ha |
|
=
1.167 |
x
ha |
