diff --git a/tui/src/display_model.cpp b/tui/src/display_model.cpp
index c780be4..cbda6f6 100644
--- a/tui/src/display_model.cpp
+++ b/tui/src/display_model.cpp
@@ -151,4 +151,14 @@ std::string formatLufs(float value) {
     return formatDb(value, 1);
 }
 
+std::string formatMaxTruePeakDb(float value, bool compact) {
+    std::string formatted = formatDb(value, 1);
+    if (std::isfinite(value) && value > -60.0f && value >= 0.0f) {
+        formatted.insert(formatted.begin(), '+');
+    }
+    return compact
+        ? formatted + "dBTP"
+        : "MAX TP " + formatted + " dBTP";
+}
+
 }  // namespace Prism::Tui
diff --git a/tui/src/display_model.h b/tui/src/display_model.h
index 77e752c..13c2f4d 100644
--- a/tui/src/display_model.h
+++ b/tui/src/display_model.h
@@ -26,5 +26,6 @@ std::string buildFrequencyAxis(size_t columns, float maxFrequency);
 std::string buildMeterBar(float levelDb, float peakDb, size_t columns);
 std::string formatDb(float value, int precision = 1);
 std::string formatLufs(float value);
+std::string formatMaxTruePeakDb(float value, bool compact = false);
 
 }  // namespace Prism::Tui
diff --git a/tui/src/tui_runtime.cpp b/tui/src/tui_runtime.cpp
index e44136b..bc8a01b 100644
--- a/tui/src/tui_runtime.cpp
+++ b/tui/src/tui_runtime.cpp
@@ -1230,11 +1230,18 @@ ftxui::Element renderLUFSMeterPanel(const DisplayFrame& frame,
         static_cast<float>(std::max(0, meterRows - 1))));
 
     Elements rows;
-    rows.push_back(hbox({
-        text("    L R LUFS") | dim,
-        filler(),
-        text("target -14") | color(terminalColor(palette().lufsTarget)),
-    }));
+    Elements heading;
+    heading.push_back(text("    L R LUFS") | dim);
+    heading.push_back(filler());
+    heading.push_back(text(formatMaxTruePeakDb(
+        frame.lufs.maxTruePeakDb, width < 60)) |
+        color(terminalColor(palette().lufsLabels)));
+    if (width >= 52) {
+        heading.push_back(text(" "));
+        heading.push_back(text("target -14") |
+            color(terminalColor(palette().lufsTarget)));
+    }
+    rows.push_back(hbox(std::move(heading)));
     for (int row = 0; row < meterRows; ++row) {
         Elements parts;
         const auto gap = [&]() {
@@ -1246,11 +1253,11 @@ ftxui::Element renderLUFSMeterPanel(const DisplayFrame& frame,
         parts.push_back(text(lufsScaleLabel(row, meterRows)) | dim);
         parts.push_back(gap());
         parts.push_back(renderLufsBarCell(
-            frame.lufs.barLDb, frame.lufs.peakLDb,
+            frame.lufs.barLDb, frame.lufs.truePeakLDb,
             row, meterRows, 2, true, row == targetRow));
         parts.push_back(gap());
         parts.push_back(renderLufsBarCell(
-            frame.lufs.barRDb, frame.lufs.peakRDb,
+            frame.lufs.barRDb, frame.lufs.truePeakRDb,
             row, meterRows, 2, true, row == targetRow));
         parts.push_back(gap());
         parts.push_back(renderLufsBarCell(
diff --git a/tui/test/tui_tests.cpp b/tui/test/tui_tests.cpp
index 56c5f3d..0cc8b7f 100644
--- a/tui/test/tui_tests.cpp
+++ b/tui/test/tui_tests.cpp
@@ -429,6 +429,10 @@ void testMeterDisplayModels() {
     require(Prism::Tui::selectLufsReadout(
         -10.0f, -12.0f, -14.0f, Prism::Tui::LUFSReadout::Integrated) == -14.0f,
         "LUFS readout selection should drive the dedicated loudness bar");
+    require(Prism::Tui::formatMaxTruePeakDb(3.0f) == "MAX TP +3.0 dBTP" &&
+        Prism::Tui::formatMaxTruePeakDb(3.0f, true) == "+3.0dBTP" &&
+        Prism::Tui::formatMaxTruePeakDb(-60.0f) == "MAX TP -inf dBTP",
+        "true-peak maximum formatting should cover normal, compact, and reset states");
 }
 
 void testSpectrumPeakModel() {
@@ -1040,6 +1044,10 @@ void testPipelineAndFakeCapture() {
         "momentary LUFS should match the deterministic stereo tone");
     require(std::abs(frame.lufs.integratedLUFS + 12.03f) < 0.5f,
         "integrated LUFS should match the deterministic stereo tone");
+    require(std::abs(frame.lufs.maxTruePeakDb + 12.04f) < 0.2f &&
+        std::abs(frame.lufs.truePeakLDb - frame.lufs.maxTruePeakDb) < 0.1f &&
+        std::abs(frame.lufs.truePeakRDb - frame.lufs.maxTruePeakDb) < 0.1f,
+        "TUI loudness snapshots should expose calibrated stereo true peak");
 
     Prism::Tui::AnalysisPipeline trimmedPipeline(48000.0f);
     trimmedPipeline.setInputTrimDb(6.0f);
@@ -1072,6 +1080,8 @@ void testPipelineAndFakeCapture() {
     pipeline.reset();
     const auto reset = pipeline.snapshot();
     require(reset.lufs.integratedLUFS <= -59.0f, "reset should clear integrated loudness");
+    require(reset.lufs.maxTruePeakDb <= -59.0f,
+        "reset should clear the maximum true-peak readout");
     require(!reset.oscilloscope.signalPresent,
         "reset should clear the oscilloscope display window");
     require(reset.oscilloscope.detectedPitch == 0.0f,