Limit Wordpress excerpt Characters Limit Length

Wordpress excerpt_length Filter Hook:

To change excerpt characters length of the wordpress post, then use excerpt_length filter hook to limit excerpt characters of the wordpress post. All you need to do just add following filter hook script to your functions.php file.

function custom_excerpt_length( $length ) {
	return 20;
}

add_filter( 'excerpt_length', 'custom_excerpt_length', 999 );

By default the excerpt in the wordpress will display 55 characters. So if you want to change then use above wordpress  excerpt_length filter hook script change the words count as per your need.