Steam Plant Operation, Eighth Edition

Appendix A: Unit Conversions

Length and Area

1 inch (in)

=

2.54 centimeters (cm)

=

25.4 millimeters (mm)

1 foot (ft)

=

12 inches (in)

=

30.48 centimeters (cm)

1 yard (yd)

=

3 feet (ft)

=

0.914 meter (m)

1 mile (mi)

=

5280 feet (ft)

=

1760 yards (yd)

=

1.609 kilometers (km)

1 meter (m)

=

100 centimeters (cm)

=

1000 millimeters (mm)

=

1.094 yards (yd)

=

3.28 feet (ft)

=

39.37 inches (in)

1 kilometer (km)

=

1000 meters (m)

=

0.621 mile (mi)

1 millimeter

=

1000 micrometers ( m, or microns)

1 square inch (in 2)

=

6.45 square centimeters (cm 2)

1 square foot (ft 2)

=

144 square inches (in 2)

=

0.0929 square meter (m 2)

1 square yard (yd 2)

=

9 square feet (ft 2)

=

0.836 square meter (m 2)

1 square mile (mi 2)

=

640 acres

1 acre

=

43,560 square feet (ft 2)

=

4840 square yards (yd 2)

1 square meter (m 2)

=

10,000 square centimeters (cm 2)

=

11.196 square yards (yd 2)

=

10.76 square feet (ft 2)

1 square centimeter (cm 2)

=

100 square millimeters (mm 2)

=

0.155 square inches (in 2)

1 nautical mile

=

6080 feet (ft)

=

1.853 kilometers (km)

1...

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