Despite the fact that most of the measurements we used to be carried out using the metric system, can sometimes be useful and knowledge of alternative methods.For example, in the description of most monitors and displays phone common practice is considered an indication of their diagonal inches.If you can convert inches to centimeters, the store you do not go around a head of unknown characteristics.
For people accustomed to the metric system, understand all these feet, yards and inches - sheer torture, for them not fit so well memorized since childhood principle of 1:10 (10 millimeters in a centimeter, a meter - 10 decimetersetc.).Judge for yourself: is almost equal to the usual meter yard consists of 3 feet, and the latter comprise 12 inches each.All this confuses the unprepared person until until it becomes completely clear answer to the question about how many centimeters in one inch.It is evident that even imagining clearly the unit of measurement does not hurt to translate it into native metric to facilitate counting.
Speaking of standard English inches, a length of 2.54 cm. It is sad, but the other (simpler) method, memorize this value is not.After all, if you do not have at hand a table or the Internet, it is only the knowledge, but in the 1-inch centimeters, will help you make an exact calculation.Rounding inch to two and a half centimeters is only allowed for the calculation, where the length is not a critical value.Although in this case the transfer will be a problem for some people, t. To. Not all goes well the oral account of fractional numbers.
Rounding as 2 inches to centimeters is a gross error, t. To. If any significant margin of error is too high.It is better to try to remember how many centimeters in 1 inch and use a calculator (as an option - to conduct calculations on paper) to get an acceptable result.
Moreover, in order to begin to understand the imperial system of measurement of distance, firmly enough to remember how many centimeters to 1 inch, and the major indexes translation.After all, much easier to learn one fractional value than a few.For example, as mentioned above, a foot 12 inches, which means that the value of the first is easily calculated by the formula: 2.54 * 12 = 30.48 cm.
However, it should take into account the fact that the length of an inch can be different in different countries, especiallyin the old sources and documents.Currently, at the mention of an inch often meant its English version.But better to clarify doubts, to avoid annoying errors.
Widespread use inches as the unit of measurement at the time found in the Russian Empire.Although the values are given not only in inches, but in its shares - inch lines.During the formation of the USSR inch it was abolished, and replaced him come centimeter.However, the legacy of the tsarist era is reflected in our day, for example, small arms and artillery.Thus, the fractional caliber of 76.2 mm is 3 inches - a logical number.In order to understand these subtleties just useful knowledge about how many centimeters in one inch.
