Page 767 - Corrosion Engineering Principles and Practice

APPENDIX C

SI Units

Conversion Table

A.1 How to Read This Table
The table provides conversion factors to SI units. These factors can be
considered as unity multipliers. For example,
Length: m/X
0.0254 in 0.3048 ft
Means that

1 = 0.0254 (m/in) or 1 in = 0.0254 m
1 = 0.3048 m/ft or 1 ft = 0.3048 m

The SI units are listed immediately after the quantity; in this case:
Length: m/X. The m stands for meter, and the X designates the non-
SI units for the same quantity. These non-SI units follow the numerical
conversion factors.

NOTE: In the following table at all locations, ton refers to U.S. Customary (2000 lb)
rather than metric ton (1000 Kg).

Area: m /X 1.0 × 10 −4 cm 2
2
1.0 × 10 −12 µm 2
0.0929 ft 2
6.452 × 10 −4 in 2
0.8361 yd 2
4047 Acre
2.59 × 10 6 mi 2

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