Converting units from USA to Metric and vice versa
Converting units from USA to Metric and vice versa is a frequent task. Here we'll show how you can do this using Natural Calculator. The available at this time units can be found in Help - USA system and Metric system.
To start, we'll be converting units of mass. Write: "lb" and press "#" to enter a substring symbol. Write "usa" in the empty place of this symbol. So, we've identified that in this case we mean the USA unit of pound.

Press "=".

The result was the same system of units. Right-click at the result and select "Units...". The Units dialog will show.

At this time USA is the selected unit system. At the left list select "metre", at the right - "Auto" and click OK.

We got the value of pounds in kilograms. Now change the expression:

The new expression was recalculated and we got the result in Metric system again.
The inverse conversion kilograms to pounds:
![]()
Now we'll be converting volume units. This is done just as well.
For example, convert gallon in litres:

We'll get:

We add 20 ounces of liquid and 2 gallons and present the results in cubic decimeters:

You can also convert the distance units. For example:

The last expression can be represented in a particular unit, for example, in centimeters. To do this, in the Units dialog, select "cm":

As a result:

Если теперь изменить выражение, то результат будет вычисляться только в сантиметрах:
If we change the expression, the result will be calculated in centimeters only.

The inverse examples:

USA units of time have the same form as in the Metric system.
