The school was inspected by the independent schools' Inspectorate in February 2008.
The inspection report rated the school's standard of education as "outstanding", the highest rating.
There was a subsequent inspection by ISI in 2013.

In 2012, the Independent review of A level results, based on government issued statistics, ranked Radley 31st in the UK, ahead of Malvern (32nd), Harrow (34th), Winchester (73rd), Tonbridge (74th), Eton (80th) and Wellington (89th) By 2019 they were still in the top 100 but had dropped to 75th place.
The school was inspected by the independent schools' Inspectorate in February 2008. The inspection report rated the school's standard of education as "outstanding", the highest rating. There was a subsequent inspection by ISI in 2013.
In 2012, the Independent review of A level results, based on government issued statistics, ranked Radley 31st in the UK, ahead of Malvern (32nd), Harrow (34th), Winchester (73rd), Tonbridge (74th), Eton (80th) and Wellington (89th) By 2019 they were still in the top 100 but had dropped to 75th place.
Radley College