Steam Community ID Converter:
Input a Steam ID or a Steam Community ID and it will be converted.
Example:
STEAMID to STEAMCOMMUNITYID:
STEAM_0:1:12280641 = 12280641 * 2 + 1 + 76561197960265728 = 76561197984827011.
Url = http://steamcommunity.com/profiles/76561197984827011
STEAMCOMMUNITYID to STEAMID:
76561197984827011 - 1 / 2 = 12280641 = STEAM_0:1:12280641
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