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INTRODUCTION

FOREWORD
Peter H. Raven

PART 1: OVERVIEW

PART 2: ATLAS
PART 3: CASE STUDIES
PART 4: ISSUES
Sources
Background sources
Contributors
About the atlas
World map and conversion tables

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World Map and Conversion Tables

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Metric Conversion Tables

How to use the conversion tables:

centimeter   inch
2.54 1 0.39

Read the number in the center column. Look left to convert imperial to metric, and look right to convert metric to imperial.
In this case:
1 inch = 2.54 centimeters
1 centimeter = 0.39 inches

Numbers
Million = 1 000 000
Billion = 1 000 000 000
Trillion = 1 000 000 000 000

Distance
10 millimeters (mm) = 1 centimeter (cm)
100 centimeters = 1 meter (m)
1 000 meters = 1 kilometer (km)

meter   yard
0.9144 1 1.0936
1.8288 2 2.1872
2.7432 3 3.2808
3.6576 4 4.3744
4.5720 5 5.4680
9.1440 10 10.936
45.720

50

54.680
91.440 100 109.36
914.40 1 000 1 093.6

 

kilometer   mile
1.6093 1 0.6214
3.2187 2 1.2427
4.8280 3 1.8641
6.4374 4 2.4855
8.0467 5 3.1069
16.093 10 6.2140
80.467

50

31.069
160.93 100 62.140
1 609.3 1 000 621.40

Area
100 square millimeters (mm2) = 1 square centimeter (cm2)
10 000 square centimeters = 1 square meter (m2)
10 000 square meters = 1 hectare (ha)
100 hectares = 1 square kilometer (km2)

hectare   acre
0.4047 1 2.4710
0.8094 2 4.9421
1.2141 3 7.4131
1.6187 4 9.8842
2.0234 5 12.355
4.0470 10 24.710
20.234

50

123.55
40.470 100 247.10
404.70 1 000 2 471

 

square
kilometer
 

square
mile

2.590 1 0.3861
5.180 2 0.7722
7.7699 3 1.1583
10.36 4 1.5444
12.95 5 1.9305
25.90 10 3.8610
129.50

50

19.305
259 100 38.610
2 590 1 000 386.10

Volume
1 000 cubic millimeters (mm3) = 1 cubic centimeter (cm3)
1 000 000 cubic centimeters = 1 cubic meter (m3)
1 000 000 000 cubic meters = 1 cubic kilometer (km3)

cubic
meter
  cubic
foot
0.0283 1 35.315
0.0566 2 70.629
0.0849 3 105.94
0.1133 4 141.26
0.1416 5 176.57
0.2830 10 353.15
1.4160

50

1 765.7
2.8300 100 3 531.5
28.300 1 000 35 315

 

liter   gallon (US)
3.7853 1 0.2642
7.5706 2 0.5284
11.356 3 0.7925
15.141 4 1.0567
18.926 5 1.3209
37.853 10 2.6420
189.26

50

13.209
378.53 100 26.420
3 785.3 1 000 264.20



1 US gallon = 0.8327 UK gallons
1 UK gallon = 1.2009 US gallons
1 barrel of oil = 159 liters = 42 US gallons = 35 UK gallons

Weight
1 000 milligrams (mg) = 1 gram (g)
1 000 grams = 1 kilogram (kilo)
1 000 kilograms = 1 metric ton (ton)

kilogram   pound (lb)
0.4536 1 2.2046
0.9072 2 4.4092
1.3608 3 6.6139
1.8144 4 8.8185
2.2680 5 11.023
4.5360 10 22.046
22.680

50

110.23
45.360 100 220.46
453.60 1 000 2 204.6

Energy
1 metric ton of oil equivalent (mtoe) =
approximately
1.5 tons hard coal
3 tons lignite
1.23 tons liquid natural gas
1 111 cubic meters natural gas

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