Where do I find my Steam ID?
Finding your Steam ID in just a few easy steps
First of all you'll need to find a link to your profile. You can either open Steam on your PC or Steam in your browser in order to find your profile link. When you open Steam on your PC, go to your profile and right click on your profile page. Then click 'copy page URL'. Your profile link has now been copied to your clipboard!
You can also find your custom URL in order to find your Steam ID. You can find your custom URL by going to your profile settings.
Now go to STEAMID.CO or click on 'home' in the left menu. In the box, paste either the custom ID you found, your profile link or your Steam ID. The system will not automatically calculate your Steam ID.