Windows
Hold Alt and type 26 on the numeric keypad.
Arrows
Copy the character, or use the shortcut that matches your keyboard and app.
Hold Alt and type 26 on the numeric keypad.
Option + ; then extra key in some layouts
Type 2192 then Alt + X
Insert → Special characters → arrow
Click the keycap, then paste with Ctrl+V or Cmd+V.
Num Lock on, hold Alt, type 26, release Alt.
Use the Unicode, HTML, CSS, or JS value below in documents and stylesheets.
U+2192→→\2192\u{2192}Alt + 26