It's also worth pointing out that there is often a big difference between absolute range, and useful range in a specific musical context.
It not a question merely of what notes you sing, but whether you can sing them with a suitable voice quality for the music.
It is very likely that your range for singing Schubert Lieder would be different from the range for singing a sea shanty, because of the different singing style needed.
You are very lucky if all the pitches you can sing sound good!
Cheers
Dave