Math and Arithmetic
Units of Measure
Length and Distance

# What is a meter equal to?

Or 100 Cm

It is generally thought that the meter is converted to inches by the relation 1 metre = 39.37 inches (ISO Conversion Factor)

However, there are more than one correct factors to be used in this conversion. A foot (one third of a yard) can be either 0.304 800 609 6012 m or 0.3048 m. This is due to the fact that the Amnerican National Bureau of Standards originally defined a meter as:

1 yard = 3600/3937 meter or 1 yard = 0.914 401 8288 meter

so that

1 foot = 12/39.37 meter or 1 foot = 0.304 800 609 6012 meter

Unfortunately, everybody else in the world used a different factor. In 1959 the National Standards laboratories of English speaking countries modified the relation between the yard and the meter as follows:

• 1 yard = 0.9144 meter
• 1 foot = 0.3048 meter
• 1 inch = 25.4 millimeter

This makes the "new" yard shorter by almost exactly two parts in a million.

But things never move smoothly. The US geodetic survey data decided to remain with the old measurements and conversions (1 foot= 12/39.37 meter) calling it the "U.S. Survey Foot".