How wartime sea and shore commands compared

What was the ratio of sea commands to shore commands in the wartime Royal Navy?

Roughly 60 percent sea to 40 percent shore when convoy commodores and related reserve roles are counted.

A rough 60-to-40 split favors sea commands once convoy commodores and supporting Royal Naval Reserve appointments are included. The figure is explicitly approximate rather than a formal establishment count. The qualification matters because counting only famous fleet billets would understate the operational command structure. Convoy service greatly widened the number of sea-going senior roles.