FictionRatings is a rating system used by some fanfiction websites such as FanFiction.net.
Age ratings[]
- K: Content suitable for most ages, usually those aged five and older. It should be free of coarse language, violence, and adult themes. Equivalent to G
- K+: Some content may not be suitable for young children, usually those below nine years of age. There may be minor violence without serious injury, mild suggestive material, or minor coarse language that is justified by context. Equivalent to PG
- T: Contains content not suitable for children. Suitable for teens, 13 years and older. May contain moderate violence, coarse language, suggestive material, and/or adult themes such as drug addiction that are contextually justified. Equivalent to PG-13
- M: Contains content suitable for mature teens and older only. Not suitable for children below 16 years. May contain non-explicit adult themes, references to (sexual) violence, frequent or strong coarse language or drug use. Equivalent to R
- MA: Contains explicit content suitable for mature adults only. May contain explicit sexual language and adult themes. Content rated MA is strictly forbidden on FanFiction. Equivalent to NC-17
A B rating was used to indicate fanfiction containing no inappropriate content and therefore best suited for children aged 4 and under, but it was quickly phased out.