We know from Figure 1.4 that the diameter of Earth is on the order of 10 7 m, so the order of magnitude of its surface area is 10 14 m 2. We write the units we have and then multiply them by the conversion factor so the units cancel out, as shown: In this case, we know that there are 1000 m in 1 km. Refer to Appendix B for a more complete list of conversion factors. in 1 ft, 1609 m in 1 mi, 100 cm in 1 m, 60 s in 1 min, and so on. A conversion factor is a ratio that expresses how many of one unit are equal to another unit. Next, we need to determine a conversion factor relating meters to kilometers. In this case, we have units in meters and we want to convert to kilometers. The first thing to do is to list the units you have and the units to which you want to convert. Suppose we want to convert 80 m to kilometers.
#Converting meters to feet in hampson russell how to
Let’s consider a simple example of how to convert units.
In this case, you may need to convert units of feet or meters to miles. Or perhaps you are reading walking directions from one location to another and you are interested in how many miles you will be walking. For example, if you are reading a European cookbook, some quantities may be expressed in units of liters and you need to convert them to cups. It is often necessary to convert from one unit to another. Use conversion factors to express the value of a given quantity in different units.
By the end of this section, you will be able to:
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