Shop Reference for Students and Apprentices, Second Edition

Conversion Factors

Metric Conversion Factors

Table 1: Metric Conversion Factors

Multiply

By

To Obtain

Length

centimeter

0.03280840

foot

centimeter

0.3937008

inch

fathom

1.8288 [a]

meter (m)

foot

0.3048 [a]

meter (m)

foot

30.48 [a]

centimeter (cm)

foot

304.8 [a]

millimeter (mm)

inch

0.0254 [a]

meter (m)

inch

2.54 [a]

centimeter (cm)

inch

25.4 [a]

millimeter (mm)

kilometer

0.6213712

mile [U.S. statute]

meter

39.37008

inch

meter

0.5468066

fathom

meter

3.280840

foot

meter

0.1988388

rod

meter

1.093613

yard

meter

0.0006213712

mile [U. S. statute]

microinch

0.0254 [a]

micrometer [micron] ( m)

micrometer [micron]

39.37008

microinch

mile [U. S. statute]

1609.344 [a]

meter (m)

mile [U. S. statute]

1.609344 [a]

kilometer (km)

millimeter

0.003280840

foot

millimeter

0.03937008

inch

rod

5.0292 [a]

meter (m)

yard

0.9144 [a]

meter (m)

Area

acre

4046.856

meter 2 (m 2)

acre

0.4046856

hectare

centimeter 2

0.1550003

inch 2

centimeter 2

0.001076391

foot 2

foot 2

0.09290304 [a]

meter 2 (m 2)

foot 2

929.0304 [a]

centimeter 2 (cm 2)

foot 2

92,903.04 [a]

millimeter 2 (mm 2)

hectare

2.471054

acre

inch 2

645.16 [a]

millimeter 2 (mm 2)

inch 2

6.4516 [a]

centimeter 2 (cm 2)

inch 2

0.00064516 [a]

meter 2 (m 2)

meter 2

1550.003

inch 2

meter 2

10.763910

foot 2

meter 2

1.195990

yard 2

meter 2

0.0002471054

acre

mile 2

2.5900

kilometer 2

millimeter 2

0.00001076391

foot 2

millimeter 2

0.001550003

inch 2

yard 2

0.8361274

meter 2 (m 2)

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