diff --git a/frontend/src/pages/utilities.rs b/frontend/src/pages/utilities.rs
index 8e1a155..af5790c 100644
--- a/frontend/src/pages/utilities.rs
+++ b/frontend/src/pages/utilities.rs
@@ -254,7 +254,7 @@ pub fn submit_stats_component() -> Html {
         .unwrap_or((0, ()));
 
     html! {
-        <div>
+        <div class="diagnostics-section">
             if *loading {
                 <p>{ "Loading..." }</p>
             }
@@ -262,17 +262,32 @@ pub fn submit_stats_component() -> Html {
                 <p style="color: red;">{ e.clone() }</p>
             }
             <h3>{ "Tickets per weekday" }</h3>
-            <ul>
-                { for (0..7).map(|i| {
-                    let is_max = i == max_idx;
-                    html! {
-                        <li style={ if is_max { "font-weight: bold; color: green;" } else { "" } }>
-                            { format!("{}: {:3}", weekdays[i], avg[i]) }
-                            { if is_max { html!{ <span>{ " ← most" }</span> } } else { html!{} } }
-                        </li>
-                    }
-                })}
-            </ul>
+            <div class="weekday-chart">
+                <div class="weekday-bars">
+                    { for (0..7).map(|i| {
+                        let is_max = i == max_idx;
+                        let max_value = counts.iter().cloned().max().unwrap_or(1).max(1);
+                        let bar_height_percent = if max_value > 0 { (avg[i] / max_value as f64) * 100.0 } else { 0.0 };
+                        let bar_height_px = (bar_height_percent * 200.0 / 100.0) as i32;
+                        html! {
+                            <div class="weekday-bar">
+                                <div class={format!("bar{}", if is_max { " max" } else { "" })} style={format!("height: {}px;", bar_height_px)}>
+                                </div>
+                            </div>
+                        }
+                    })}
+                </div>
+                <div class="weekday-labels">
+                    { for (0..7).map(|i| {
+                        html! {
+                            <div class="label-item">
+                                <div class="day">{ weekdays[i] }</div>
+                                <div class="value">{ format!("{:.1}", avg[i]) }</div>
+                            </div>
+                        }
+                    })}
+                </div>
+            </div>
             <RoomTotalTickets tickets={(*tickets).clone()}/>
         </div>
     }
@@ -288,15 +303,29 @@ fn room_total_component(props: &RoomTotalsProps) -> Html {
     let mut totals_vec: Vec<(i16, usize)> = totals.into_iter().collect();
     totals_vec.sort_by(|a, b| b.1.cmp(&a.1));
 
+    let max_count = totals_vec.iter().map(|(_, c)| *c).max().unwrap_or(1).max(1);
+
     html! {
-        <div>
+        <div class="diagnostics-section">
             <h3>{ "Tickets pro Raum" }</h3>
-            <ul>
+            <div class="room-chart">
                 { for totals_vec.into_iter().map(|(room, count)| {
                     let label = parse_room(room);
-                    html! { <li>{ format!("{}: {}", label, count) }</li> }
+                    let bar_width_percent = (count as f64 / max_count as f64) * 100.0;
+                    html! {
+                        <div class="room-bar-item">
+                            <div class="room-header">
+                                <span class="room-label">{ label }</span>
+                                <span class="room-count">{ count }</span>
+                            </div>
+                            <div class="room-bar-container">
+                                <div class="room-bar" style={format!("width: {}%;", bar_width_percent)}>
+                                </div>
+                            </div>
+                        </div>
+                    }
                 }) }
-            </ul>
+            </div>
         </div>
     }
 }
diff --git a/frontend/src/styles/components/_diagnostics.scss b/frontend/src/styles/components/_diagnostics.scss
new file mode 100644
index 0000000..ec73468
--- /dev/null
+++ b/frontend/src/styles/components/_diagnostics.scss
@@ -0,0 +1,137 @@
+@use "../mixins" as *;
+@use "../variables" as *;
+
+.diagnostics-container {
+  display: flex;
+  flex-direction: column;
+  gap: $spacing-md;
+}
+
+.diagnostics-section {
+  background-color: $color-bg;
+  border-radius: $border-radius;
+  padding: $spacing-md;
+  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
+
+  h3 {
+    margin: 0 0 $spacing-md 0;
+    color: #1f2937;
+    font-size: 1.1rem;
+    font-weight: 600;
+  }
+}
+
+.weekday-chart {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+  border: 1px solid #e5e7eb;
+  border-radius: $border-radius;
+  background-color: #f9fafb;
+}
+
+.weekday-bars {
+  display: flex;
+  gap: 12px;
+  align-items: flex-end;
+  height: 205px;
+  padding: $spacing-md;
+  overflow-x: auto;
+  padding-bottom: 0px;
+}
+
+.weekday-bar {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  flex: 1;
+  min-width: 60px;
+  height: 100%;
+
+  .bar {
+    width: 100%;
+    background-color: $color-accent;
+    border-radius: 4px 4px 0 0;
+    transition: background-color 0.2s ease;
+
+    &.max {
+      background-color: #10b981;
+    }
+  }
+}
+
+.weekday-labels {
+  display: flex;
+  gap: 12px;
+  padding: $spacing-md;
+  padding-top: 0;
+  overflow-x: auto;
+
+  .label-item {
+    flex: 1;
+    min-width: 60px;
+    text-align: center;
+    white-space: nowrap;
+
+    .day {
+      font-weight: 600;
+      font-size: 12px;
+      color: #1f2937;
+      margin-bottom: 2px;
+    }
+
+    .value {
+      font-size: 11px;
+      color: $color-muted;
+    }
+  }
+}
+
+.room-chart {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+  padding: $spacing-md;
+  border: 1px solid #e5e7eb;
+  border-radius: $border-radius;
+  background-color: #f9fafb;
+}
+
+.room-bar-item {
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+
+  .room-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+
+    .room-label {
+      font-weight: 600;
+      font-size: 14px;
+      color: #1f2937;
+      min-width: 50px;
+    }
+
+    .room-count {
+      font-size: 12px;
+      color: $color-muted;
+      font-weight: 500;
+    }
+  }
+
+  .room-bar-container {
+    width: 100%;
+    height: 24px;
+    background-color: #e5e7eb;
+    border-radius: 4px;
+    overflow: hidden;
+
+    .room-bar {
+      height: 100%;
+      background-color: #f97316;
+      transition: width 0.3s ease;
+    }
+  }
+}
diff --git a/frontend/src/styles/main.scss b/frontend/src/styles/main.scss
index 601272a..a8d7160 100644
--- a/frontend/src/styles/main.scss
+++ b/frontend/src/styles/main.scss
@@ -3,6 +3,7 @@
 @use "utilities";
 @use "components/sidebar";
 @use "components/tickets";
+@use "components/diagnostics";
 
 body {
   background: variables.$color-bg;