More precisely it is 1.54 times.
The last time I saw this question posted on a forum, it started a huge discussion in the understanding of effective focal length. It can be confusing.
So I will steer you to a professional on the subject:
And that bit of knowledge will have you wondering about the sizes of sensor assemblies on other cameras.
Because smaller cameras (non DSLR) have a larger multiplier.
Canon EF lenses (including EF-S lenses)
(35mm-equivalent focal length is equal to approx.1.6 times the marked focal length)