The series is made to 1:21 scale, so that means in ‘real life’ this Angel stands some 1.7 m (5 ft 7 in) so the species is not very tall.
The scale is perhaps an odd one for kit builders, as 1:21 isn’t to any standard format. However, it’s reasonably close to 1:18, so our Angel is shown below putting a malign influence on a Bburago Mercedes-Benz. It isn’t too far out from a size point of view.
If you subscribe to the series, then Eaglemoss has a bunch of goodies for you, including a splendid Emperor Dalek, standing 216 mm (8.5 in) high. A great pity though, that the bulk precludes it matching the rest of the collection - in fact, it’s half-size, at 1:42 scale.
Other Doctor Who stuff here.