When I was preparing for the artifical sphincter surgery I had to keep a log
on how often I went, etc.  At night I almost always get up at least once,
and sometimes twice.  The volume is similar to yours.  During the day I make
a concious attempt to go to the bathroom frequently due to my continued
incontinence, evern post AMS 800 surgery.  The volume is therefore a lot
less due to going more frequently, but I think over the course of the day my
output would be in line with what you show below.

Good luck to you.

David S.

I didn't have surgery but, as a result of my radiation, I did have
urinary difficulties and did measure my output.

I think my output today is similar to what you have, and I think it's
about what it was before treatment.  I would usually get up once,
and sometimes twice, before treatment, and I still do today.  I
would say 400 ml is the upper limit of my capacity unless I've
slept a particularly long time and awakened with a tremendous
need to urinate.

How much we urinate depends also on how much liquid we drink,
and how much sweating we do.  After working hard on a hot day
we urinate less.  After drinking a great deal we urinate more.

It may also depend on what size person you are.  For reference,
I weigh about 153 pounds, which is about 69.5 kg.

   Alan