How to Design Radial Charts in Tableau with Rings That Reflect Real Percentages

Learn how to create a radial chart in Tableau that accurately represents percentages as segments of a full circle, unlike traditional radial charts where the rings are uniform in length and only shrink toward the center. Using a custom formula, this approach allows each ring to represent its true proportion out of 360 degrees, so values like 7% will visually appear as 7% of the circle. This method enhances the accuracy and clarity of your data visualization, making it ideal for showing precise comparisons in performance metrics or other proportional data. Tableau: https://public.tableau.com/app/profil... Excel: https://docs.google.com/spreadsheets/... Formulas: Radial - Points (not same length): IF CONTAINS([Table Name], "1") THEN 0 ELSE {FIXED [Segment], [Metric]: SUM([Metric Value])}* 360 END Radial LOD: {FIXED [Segment], [Metric]: AVG([Metric Value])} Radial - Rank: RANK_UNIQUE(-SUM([Radial - LOD])) Radial - X: SIN((INDEX()-1) * WINDOW_MAX(MAX(PI()))/180) * WINDOW_MAX([Radial - Rank]) Radial - Y: COS((INDEX()-1) * WINDOW_MAX(MAX(PI()))/180) * WINDOW_MAX([Radial - Rank])