how to get mysql table size in GB

Question

Just ended up with calculating the size of MySQL table in GB with the following query.

SELECT (data_length+index_length)/power(1024,3) tablesize_gb FR

Answer 1

SELECT 
     table_name AS `Table`, 
     round(((data_length + index_length) / 1024 / 1024 ), 2) as `Size in MB`,
     round((AVG_ROW_LENGTH / 1024), 2) as `Avg row size in KB`
FROM information_schema.TABLES WHERE table_schema = 'your_db_name'
ORDER BY `Size in MB` DESC