How the Klout Score Is Calculated

Klout announced a detailed lay-out of hosw they calculate a Klout score:

The Klout Score is a number from 1-100 that represents the aggregation of multiple pieces of data about your social network activity. We compute the Klout Score by applying our score model to these signals.

Score Signals

The Klout Score currently incorporates more than 400 signals from seven different networks. We process this data on a daily basis to generate updates to your Score. Here are some of the top signals we measure by network:

-Mentions: A mention of your name in a post indicates an effort to engage with you directly.
-Likes: The simplest action that shows engagement with the content you create.
-Comments: As a reaction to content you share, comments also reflect direct engagement by your network.
-Subscribers: Subscribers count is a more persistent measure of influence that grows over time.
-Wall Posts: Posts to your wall indicate both influence and engagement.
-Friends: Friend count measures the reach of your network but is less important than how your network engages with your content.

-Retweets: Retweets increase your influence by exposing your content to extended follower networks.
-Mentions: People seeking your attention by mentioning you is a strong signal of influence. We also take into account the differences in types of mentions, including “via” and “cc”
-List Memberships: Being included on lists curated by other users demonstrates your areas of influence.
-Followers: Follower count is one factor in your Score, but we heavily favor engagement over size of audience.
-Replies: Replies show that you are consistently engaging your network with quality content.

-Comments: As a reaction to content you share, comments also reflect direct engagement by your network.
-+1’s: The simplest action that shows engagement with the content you create.
-Reshares: Reshares increase your influence by exposing your content to extended networks on Google+.

-Title: Your reported title on LinkedIn is a signal of your real-world influence and is persistent.
-Connections: Your connection graph helps validate your real-world influence.
-Recommenders: The recommenders in your network add additional signals to the contribution LinkedIn makes to your Score.
-Comments: As a reaction to content you share, comments also reflect direct engagement by your network.

-Tips Done: The number of suggestions you’ve left that have been completed indicate your ability to influence others on foursquare.

-+K received: Receiving +K increases your Klout Score by an amount that is capped in every 90-day measurement cycle to protect the integrity of the Score.

-Page Importance: Measure by applying a PageRank algorithm against the Wiki-pedia page graph.
-Inlinks to Outlinks Ratio: Compare the number of inbound links to a page to the number of outbound links.
-Numbers of Inlinks: Measures the total number of inbound links to a page.

The majority of the signals used to calculate the Klout Score are derived from combinations of attributes, such as the ratio of reactions you generate compared to the amount of content you share. For example, generating 100 retweets from 10 tweets will contribute more to your Score than generating 100 retweets from 1,000 tweets. We also consider factors such as how selective the people who interact with your content are. The more a person likes and retweets in a given day, the less each of those individual interactions contributes to another persons score. Additionally, we value the engagement you drive from unique individuals. 100 retweets from 100 different people contribute more to your Score than do 100 retweets from a single person.

We know how important it is to maintain the integrity of the Klout Score, so we closely monitor activity across the signals we measure for inauthentic behaviors. The Score will continue to evolve and improve as we add more networks and more signals.

Core Concepts

Now that you know what information goes into Klout, here are the principles that guide the Klout Score.

Influence is the Ability to Drive Action
It’s great to have lots of connections, but what really matters is how people engage with the content you create. We believe it’s better to have a small and engaged audience than a large network that doesn’t respond to your content.

Connecting Networks Can Only Help Your Score
We want to help you understand your influence wherever it may exist. We also understand given the number of different networks out there, that it is nearly impossible for any person to be consistently effective across every network. Adding more networks helps us more accurately measure your influence and can only increase your Score.

Everyone has Klout
You are never penalized for connecting or engaging with someone with a low Klout Score. In fact, you are helping build their Klout Score. The more influential you are, the greater impact you have. All engagement positively contributes to your Score.

Influence is Built Over Time
In most instances, your influence should not radically change from one day to the next. The Klout Score is based on a rolling 90-day window, with recent activity being weighted more than older activity. Being inactive over the weekend or taking a short break won’t have a major impact on your score, but if you’re inactive for longer periods your Score will decrease gradually.

Being Active is Different than Being Influential
Retweets, Likes, comments and other interactions on the social Web are all signals of influence. However, just looking at the count of these actions does not tell the whole story of a person’s influence. It’s important to look at how much content a person creates compared to the amount of engagement they generate.

Klout is Constantly Evolving
The social Web is changing every day and the Klout Score will continue to evolve and improve. The best strategy for obtaining a high Klout Score is to simply create great content that your network wants to share and engage with.