


RedCrab can calculate with units of measurement

Units can be allocated to a number

A number of units is predefined and allocated in different groups

Mathematical terms which contains units of the same group and the same dimension can be added and subtracted

Multiplication and Division are possible without restrictions if the calculations make sense


Make no sense 
ha âˆ™ ha
3km / 2km 
hectare * hectare
kilometre / kilometre 







Correct is 
3km / 2 = 1.5 km 




3km + 2km = 5km 
kilometre + kilometre 



3km + 245m = 3245m 
kilometre + metre 



12m + 5yd = 18.123yd 
metre + yard 



5yd + 12m = 16.572m 
metre + yard 



4m âˆ™ 5m = 20m^{2} 
metre âˆ™ metre 



2ha + 950m^{2} = 20950m^{2} 
hectare + square metre 



650km / 5.5h = 118.18km/h 
Kilometre / hour 







The result displays the unit of the right operand

In the unit input box on the tool bar, you can input a preferred unit of measurement, which will be shown instead

The preferred unit of measure is ignored if the result is incompatible

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Example 
 If the default presetting for units is miles, all length are displayed in miles









With the feature formatting of results, a preferred unit can be assigned to a variable

In the example below the result of x is displayed in yard and y is displayed in miles

Info: You can open the window for formatting with a doubleclick on the variable



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 New units can be derived from the predefined units of measurement


dm = 0.1m
3dm + 25cm = 55cm 







The names of the units can be overloaded by assigning a value to them

In the example, m is defined as a variable with a value of 15. In this case, m cannot be used as a unit of measurement


mÂ = 15 

 The feature unit of measure can be switch off in the group Settings>Tools




List of predefiened units of measurement 
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