The UK National gender median pay gap in 2020 was 15.5%; the UK Armed Forces compare favourably with this:
UK Armed Forces Gender Pay Gap
Median pay gap of 0.78%, a rise of 0.32 percentage points from last year. Mean pay gap of 1.23%, a rise of 0.35 percentage points from last year.
UK Armed Forces Bonus Pay Gap
Median bonus gap of 3.47%, a rise of 3.47 percentage points from last year. Mean bonus gap of 15.17%, down 2.86 percentage points from last year.
Full details, including analysis of all the figures, can be found at this link.