How the charts work
Radiochart.eu publishes weekly rankings calculated from observed radio playlists. This guide explains what the published numbers represent, how tracks qualify and how to compare the tables.
Reporting period and updates
The reporting week runs from Monday 00:00 UTC to the following Monday 00:00 UTC, with the end excluded. The date range displayed on a chart identifies that week, not the date you opened the page. Weekly publication is scheduled for Monday at 03:00 UTC, using the completed week. Processing delays or source corrections can affect availability; the period shown on the page is the authoritative period for that table.
Sources and recording identity
We collect playlist observations from monitored station sources. Repeated observations of the same broadcast are consolidated before counting. Only observations assigned to a recording can contribute to the published rankings. Studio recordings, remixes and live performances may have distinct identities, so the same song title does not necessarily mean the same chart entry.
Radio chart ranking
World, Europe, regional and national radio charts are ordered by observed airplay count for the selected market and week. Ties are broken by the weekly radio score, then the number of stations; a stable recording identifier resolves any remaining tie. Spotify popularity does not determine radio chart position.
A recording must have support from at least two stations and at least two monitored hit-format stations (CHR, Top 40 or Hot AC). Those hit-format stations must contribute at least 30% of its counted airplays, with a minimum of two broadcasts. No single station may account for more than 80% of its market airplays.
The World and Europe charts additionally require support across at least five monitored countries and ten stations, and cap a single station at 50% of market airplays.
Coverage and limitations
National charts use monitored stations assigned to that country; Europe uses the configured European markets. Estonia additionally restricts contributing stations to FM or DAB+ and excludes titles written in Cyrillic. The current public chart policy excludes Russian station sources and recordings with artist-country metadata marked RU. Test and internal sources are excluded.
The sample is not every station or every listener in a territory. Station formats, source availability and recording identification affect inclusion. Counts describe observed broadcasts, not audience reach, purchases or total streams. A larger airplay count in one country is not evidence of a larger audience than in another.
Reading the columns
- TW / Rank
- The recording’s position in the selected chart and week.
- LW
- Its position in the immediately preceding published week. A dash means no position for that comparison.
- WOC
- Weeks on this chart within the available chart history. It is not the age of the song.
- Peak
- The best recorded position within the available history for this chart.
- Radio airs
- Counted broadcast observations for this recording in the chart’s market and reporting week.
- Stations
- Distinct monitored stations contributing those broadcasts. Do not add this column to obtain a unique total of stations across songs.
- Radio score
- The system’s weekly radio rating, shown on a ten-point scale. It is a separate indicator and a tie-breaker, rather than the primary ranking or an audience measurement.
- Spotify
- The stored Spotify popularity indicator for the recording, displayed on Spotify’s 0–100 scale. It is not a weekly stream count and may update at a different time from airplay data.
- Year
- Recording release metadata. Reissues and compilation editions can differ from the first release; metadata is subject to verification and corrections.
Movement symbols
▲ Up and ▼ Down compare the current position with the previous week. ■ Unchanged means the same position. ◆ New means no earlier appearance in the available history. ◀ Re-entry means the recording appeared earlier but was absent in the preceding week. Historical coverage limits apply to New, Re-entry, WOC and Peak.
Spotify, iTunes and Shazam charts
Spotify Top 100 displays the first 100 positions from Spotify’s Weekly Top Songs Global, ranked by weekly chart streams. Its period and source link identify the source chart. Streak is the consecutive-week count reported by Spotify. These stream counts are different from the Spotify popularity indicator displayed alongside radio charts.
iTunes and Shazam pages present saved observations of their respective source charts and provide a link to the source. Their observation week does not necessarily mean that the source measures a full week of activity. Peak, weeks on chart and movement on these pages refer to our saved observations, not an unlimited platform history.
Corrections and questions
If you spot a wrong recording, date or chart entry, contact northstarmedia.ee@gmail.com with the page URL, reporting week and supporting evidence. We preserve recording distinctions when assessing corrections. About the publisher.