Agriculture Reference
In-Depth Information
Appendices
Appendix 1 Conversion Factors for SI (System International) Units and Non-SI Units,
Including American Units, and SI Abbreviations
a
Used in his topic
To convert column
1 into column 2,
multiply by
To convert column
2 to column 1,
multiply by
Column 1, SI unit
Column 2, non-SI unit
Length, area, and volume
3.28
meter, m
foot, ft
0.304
39.4
meter, m
inch, in
0.0254
3.94
×
10
-2
millimeter, mm
inch, in
25.4
2.47
hectare, ha
acre, ac
0.405
0.265
liter, L
gallon
3.78
9.73
×
10
-3
cubic meter, m
3
acre-inch, acre-in
102.8
8.11
×
10
-4
cubic meter, m
3
acre-foot, acre-ft
1.233
×
10
3
35.3
cubic meter, m
3
cubic foot, ft
3
2.83
×
10
-2
0.811
megaliter, ML
acre-foot, acre-ft
1.233
Mass
2.20
×
10
-3
gram, g
pound, lb
454
2.205
kilogram, kg
pound, lb
0.454
1.102
tonne, t
ton (U.S), ton
0.907
(continued)
243
