copyspeedW

@echo off
set startTime=%time%
copy /Y %1 %2 1>nul
set endTime=%time%
for /f "tokens=1,2,3 delims=:," %%i in ("%startTime%") do set /a startTime=3600*%%i+60*%%j+%%k
for /f "tokens=1,2,3 delims=:," %%i in ("%endTime%") do set /a endTime=3600*%%i+60*%%j+%%k
set /a copySpeed=%~z1/(%endTime%-%startTime%)/1024/1024
echo Copy speed: %copySpeed% MB/s