A rating is an

evaluation Evaluation is a systematic determination and assessment of a subject's merit, worth and significance, using criteria governed by a set of standards. It can assist an organization, program, design, project or any other intervention or initiative to ...

or assessment of something, in terms of quality, quantity, or some combination of both. Rating or ratings may also refer to:

Business and economics

Credit rating A credit rating is an evaluation of the credit risk of a prospective debtor (an individual, a business, company or a government), predicting their ability to pay back the debt, and an implicit forecast of the likelihood of the debtor defaulting. ...

, estimating the credit worthiness of an individual, corporation or country * Ranally city rating system, a tool used to classify U.S. cities based on economic function * Telecommunications rating, the calculated cost of a phone call

Entertainment

* Arbitron ratings or Nielsen Audio, consumer research on radio broadcasting audiences in the United States *

Content rating A content rating (also known as maturity rating) rates the suitability of TV shows, movies, comic books, or video games to this primary targeted audience. A content rating usually places a media source into one of a number of different categories, ...

, the suitability of a TV broadcast, movie, comic book, or video game to its audience **

Motion picture rating system A motion picture content rating system classifies films based on their suitability for audiences due to their treatment of issues such as sex, violence, or substance abuse; their use of profanity; or other matters typically deemed unsuitable for c ...

, categorizes films according to their suitability for adults and children **

Television content rating systems Television content rating systems are systems for evaluating the content and reporting the suitability of television programs for minors. Many countries have their own television rating system and countries' rating processes vary by local prior ...

, categorizes TV shows based on suitability for audiences **

Video game content rating system A video game content rating system is a Content rating, system used for the classification of video games based on suitability for target audiences. Most of these systems are associated with and/or sponsored by a government, and are sometimes par ...

, categorizes video games based on suitability for players * Nielsen ratings, measuring viewership of United States television programs *

Sports rating system A sports rating system is a system that analyzes the results of sports competitions to provide ratings for each team or player. Common systems include polls of expert voters, crowdsourcing non-expert voters, betting markets, and computer systems. R ...

, analyzes the results of sports competitions

Polling and opinion

* Rating (sociological group), a Ukrainian non-governmental polling organization *

United States presidential approval rating In the United States, presidential job approval ratings were first conducted by George Gallup (estimated to be 1937) to gauge public support for the president of the United States during their term. An approval rating is a percentage determined ...

, the percentage of respondents to an opinion poll who approve of a president *

Reputation system Reputation systems are programs or algorithms that allow users to rate each other in online communities in order to build trust through reputation. Some common uses of these systems can be found on E-commerce websites such as eBay, Amazon.com, ...

, programs that allow users to rate each other in online communities

Technology and engineering

* Rating (electrical), the voltage at which the appliance is designed to work *

Fire-resistance rating A fire-resistance rating typically means the duration for which a passive fire protection system can withstand a standard fire resistance test. This can be quantified simply as a measure of time, or it may entail other criteria, involving eviden ...

, the duration for a passive fire protection to withstand a standard fire resistance test * Cetane rating, an indicator of the combustion speed of diesel fuel and compression needed for ignition * Octane rating, a standard measure of the performance of an engine or aviation fuel *

Performance Rating The PR (Performance Rating, P-rating) system was a figure of merit developed by AMD, Cyrix, IBM Microelectronics and SGS-Thomson in the mid-1990s (Cyrix announced it in February 1996) as a method of comparing their x86 processors to those of r ...

, formerly a method of comparing x86 computer processors *

Power rating In electrical engineering and mechanical engineering, the power rating of equipment is the highest power input allowed to flow through particular equipment. According to the particular discipline, the term ''power'' may refer to electrical or me ...

, in electrical or mechanical engineering, the highest power input allowed to flow through particular equipment

Other uses

* Rating (chess), estimate of the strength of a player, based on performance versus other players **

Elo rating system The Elo rating system is a method for calculating the relative skill levels of players in zero-sum games such as chess. It is named after its creator Arpad Elo, a Hungarian-American physics professor. The Elo system was invented as an improved c ...

, a rating system used in chess and in other sports and games *

Rating (clinical trials) Within the field of clinical trials, rating is the process by which a human evaluator subjectively judges the response of a patient to a medical treatment. The rating can include more than one treatment response. The accessor is normally an indep ...

, the process by which a human evaluator subjectively judges the response of a patient to a medical treatment *

Rating (wine) A wine rating is a score assigned by one or more wine critics to a wine tasted as a summary of that critic's evaluation of that wine. A wine rating is therefore a subjective quality score, typically of a numerical nature, given to a specific bottl ...

, score assigned by one or more wine critics to a wine *

Rating site A review site is a website on which reviews can be posted about people, businesses, products, or services. These sites may use Web 2.0 techniques to gather reviews from site users or may employ professional writers to author reviews on the topic ...

, a website designed for users to vote on or rate people or content * Naval rating, an enlisted member of a navy or coast guard defined by rank and job description. *

Health care ratings Health care ratings are ratings or evaluations of health care. In the United States they have been an increasingly used tool to try to drive accountability among health care providers and in the context of classic supply/demand view of Health econo ...

, evaluations of health care *

Rating system of the Royal Navy The rating system of the Royal Navy and its predecessors was used by the Royal Navy between the beginning of the 17th century and the middle of the 19th century to categorise sailing warships, initially classing them according to their assi ...

- an historic method to classify ship by how heavily armed they are. Applied to other navies vessels as a comparisor.

Business and economics

Entertainment

Polling and opinion

Technology and engineering

Other uses

See also