How do I tell when my torrent has seeded?

[Destaice]

Hello. I'm still kinda new to this torrenting thing. All I know is that every time I torrent something I need to leave it up until I've helped others get the torrent, or AKA seeding.

The question is, how do I tell when I've actually done this? When googling all I've found is info on how to seed, but no info on how to check when I've actually done it.

When I go to "peers" I can get some information on if I'm uploading, but no way to tell if I'm actually done.

[DreadWingKnight]

It's hard to tell unless you have a way to see the stats from the tracker you're using.

[VulcanTourist]

My rule of thumb is to always seed to at least a ratio of 3000% (3x); I originally set a target of 10,000%, but that was insane.  The seed ratio needs to be much higher than 100%, though, simply because you're never seeding an entire torrent sequentially to a single person, only pieces, and more importantly you can't know the seeding motives of the people who leech from you: will they in turn seed or simply walk away?  You have to account for the selfish people (or those with exceedingly poor uplink speeds).  I figure no less than 2 of every 3 leechers will walk away, so you must seed long enough to reach that third person and help make sure he gets the whole file so that he can in turn seed it.  Failure to do this is why so many torrents go sour after the honeymoon is over.  Because of my humiliatingly slow service my goal is often impossible with anything but the smallest torrents, but I feel it's critical to try, especially with less popular torrents!  Imagine you're the guy who tries to get an old and/or less popular torrent after the crowd has already left, and you can't get all of it, because there are no true seeders left and your peers combined have only preserved part of it.