Last.fm Chart Consistency Index (CCI) Calculator

This tool will calculate the week-to-week, month-to-month, or average weekly consistency of your Last.fm charts; that is, the degree to which two weeks' charts are similar. The tool considers the top 25 artists in your chart for the more recent week (or the number of artists you listened to, if fewer) and calculates a consistency rating based on whether that artist appeared in your chart the previous week and if so, how many ranks the artist moved up or down. In the overall chart consistency index (CCI), the higher-ranked artists are more important.

A CCI of 70 or higher indicates that you have consistent listening habits. Many of your top artists are the same or have moved only a few positions. A CCI of 30 or lower indicates that your top artists vary significantly from week to week. A few artists may have been consistently ranked high, but most of your top 25 were not ranked highly the previous week.

Help keep the CCI calculator going! If you find the tool useful, please consider making a donation. As a bonus, if you make a donation of at least $5.00 and specify your last.fm username when checking out, your weekly and monthly CCI images will automatically update every week!

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