**Convert** **Luminous energy density**:

With this calculator, it is possible to enter the value to be converted together with the original measurement unit; for example, '543 lm·s/m3'. In so doing, either the full name of the unit or its abbreviation can be used. Then, the calculator determines the category of the measurement unit of measure that is to be converted, in this case '**Luminous energy density**'. After that, it converts the entered value into all of the appropriate **units** known to it. In the resulting list, you will be sure also to find the conversion you originally sought. Regardless which of these possibilities one uses, it saves one the cumbersome search for the appropriate listing in long selection lists with myriad categories and countless supported **units**. All of that is taken over for us by the calculator and it gets the job done in a fraction of a second.

#### Mathematical expressions

Furthermore, the calculator makes it possible to use mathematical expressions. As a result, not only can numbers be reckoned with one another, such as, for example, '(95 * 87) lm·s/m3'. But different **units** of measurement can also be coupled with one another directly in the conversion. That could, for example, look like this: '12 lm·s/m3 + 4 lm·s/m3' or '79mm x 71cm x 63dm = ? cm^3'. The **units** of measure combined in this way naturally have to fit together and make sense in the combination in question.

#### Mathematical functions

The mathematical functions sin, cos, tan and sqrt can also be used. Example: sin(π/2), cos(pi/2), tan(90°), sin(90) or sqrt(4).