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There are conversion factors. Within the customary system, with common units, you use12 inches (in) = 1 foot (ft)

36 in = 3 ft = 1 yard (yd)

792 in = 66 ft = 22 yds = 1 chain

7920 in = 660 ft = 220 yds = 10 chains = 1 furlong

63360 in = 5280 ft = 1760 yds = 80 chains = 8 furlongs = 1 mile (mi).

Within the metric system

10 millimetre (mm) = 1 centimetre (cm)

100 mm = 10 cm = 1 decimetre (dm)

1,000 mm = 100 cm = 10 dm = 1 metre (m)

10,000 mm = 1,000 cm = 100 dm = 10 m = 1 decametre (dam)

100,000 mm = 10,000 cm = 1,000 dm = 100 m = 10 dam = 1 hectometre (hm)

1,000,000 mm = 100,000 cm = 10,000 dm = 1,000 m = 100 dam = 10 hm = 1 kilometre (km).

To convert from a smaller unit to a larger one (left to right) you divide by the conversion factor.

In both cases there are smaller and larger units. In the case of the customary system they basic unit-to-next unit conversion often requires yet another conversion factor. In the metric system, the conversion factor is 1,000.

Q: How can you compare lengths within the customary system or the metric system?

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In the metric system, lengths are calculated in meters.In the metric system, lengths are calculated in meters.In the metric system, lengths are calculated in meters.In the metric system, lengths are calculated in meters.

well the USA is the only country in the world to use the customary system while the rest of the world uses the metric system

A Customary Unit or non-SI unit is a measurement unit that is not part of the metric system. Customary units are mainly units of the Imperial system but they could be localised customary units - such as Gaj (for area) is South Asia.

Metric system: meters; customary system: feet

They are both systems of measurement except that the metric system is simpler and used by the majority of the world.

Related questions

In the metric system, lengths are calculated in meters.In the metric system, lengths are calculated in meters.In the metric system, lengths are calculated in meters.In the metric system, lengths are calculated in meters.

They use the metric system.

In many European countries the metric system IS the customary system!

metric

metric and customary

The customary units are ones we use everyday. metric units usually have the word meter on it. my teacher taught me meter metric no meter no metric.

well the USA is the only country in the world to use the customary system while the rest of the world uses the metric system

Turkey uses the Metric System.The only country that does not use the Metric System is the USA.

Yes they do use only the metric system

The US has not converted to the Metric System yet. We are still using the English Customary.

the metric system

the metric system is used in almost every country. America and 2 other countries use the USA customary system.