RedCrab Calculator


Units of measurement

  • 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 ∙ 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 ∙ 5m = 20m2 metre ∙ metre  
    2ha + 950m2 = 20950m2 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


  • 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 double-click on the variable



  • 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

  m  = 15
  • The feature unit of measure can be switch off in the group Settings->Tools
List of predefiened units of measurement

Varibale overload
Function definition
Remark selection
Define and calculate with lists
Define Tables
Work with Data fields
Unit of Measurement
List of predefiened Units

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