# lvreduce > Reduce the size of a logical volume. > See also: `lvm`. > More information: . - Reduce a volume's size to 120 GB: `lvreduce {{[-L|--size]}} {{120G}} {{logical_volume}}` - Reduce a volume's size by 40 GB as well as the underlying filesystem: `lvreduce {{[-L|--size]}} -{{40G}} {{[-r|--resizefs]}} {{logical_volume}}`