Batch rounding a number

Question

I have a script that calculates disk space in bytes. I have found a way to convert it to megabytes. I have just run it and i got a this: 1867.603187561035. Is there

Answer 1

@echo off
set "number_to_round=1867.603187561035"

for /f "tokens=1,2 delims=." %%a  in ("%number_to_round%") do (
  set first_part=%%a
  set second_part=%%b
)

set second_part=%second_part:~0,1%
echo %second_part%
if defined second_part if %second_part% GEQ 5 ( 

    set /a rounded=%first_part%+1
) else ( 
    set /a rounded=%first_part%
)

echo %rounded%

OR (with the javascript call you can get more precise results and work with long number (while batch is limited to integers))

@echo off
set number_to_round=1867.603187561035

set "beginJS=mshta "javascript:close(new ActiveXObject('Scripting.FileSystemObject').GetStandardStream(1).Write(Math.round(%number_to_round%)"
set "endJS=));""

for /f %%N in (
  '%beginJS%%endJS%'
) do set rounded=%%N

echo %rounded%