diff --git a/autotests/ffmpegextractortest.cpp b/autotests/ffmpegextractortest.cpp
--- a/autotests/ffmpegextractortest.cpp
+++ b/autotests/ffmpegextractortest.cpp
@@ -50,6 +50,7 @@
     QCOMPARE(result.properties().value(Width).toInt(), 1280);
     QCOMPARE(result.properties().value(Height).toInt(), 720);
     QVERIFY(abs(result.properties().value(FrameRate).toDouble() - 23.976) < 1e-4);
+    QVERIFY(abs(result.properties().value(AspectRatio).toDouble() - 1.77778) < 1e-4);
 }
 
 QTEST_GUILESS_MAIN(ffmpegExtractorTest)
diff --git a/autotests/propertyinfotest.cpp b/autotests/propertyinfotest.cpp
--- a/autotests/propertyinfotest.cpp
+++ b/autotests/propertyinfotest.cpp
@@ -92,6 +92,9 @@
     PropertyInfo framerate(Property::FrameRate);
     QCOMPARE(framerate.formatAsDisplayString(QVariant(23)), QStringLiteral("23 fps"));
     QCOMPARE(framerate.formatAsDisplayString(QVariant(23.976)), QStringLiteral("23.98 fps"));
+
+    PropertyInfo aspectRatio(Property::AspectRatio);
+    QCOMPARE(aspectRatio.formatAsDisplayString(QVariant(1.77778)), QStringLiteral("1.78:1"));
 }
 
 QTEST_GUILESS_MAIN(PropertyInfoTest)
diff --git a/src/extractors/ffmpegextractor.cpp b/src/extractors/ffmpegextractor.cpp
--- a/src/extractors/ffmpegextractor.cpp
+++ b/src/extractors/ffmpegextractor.cpp
@@ -106,11 +106,17 @@
             result->add(Property::Width, codec->width);
             result->add(Property::Height, codec->height);
 
-            int aspectRatio = codec->sample_aspect_ratio.num;
-            if (codec->sample_aspect_ratio.den)
-                aspectRatio /= codec->sample_aspect_ratio.den;
-            if (aspectRatio)
-                result->add(Property::AspectRatio, aspectRatio);
+            AVRational avSampleAspectRatio = av_guess_sample_aspect_ratio(fmt_ctx, stream, NULL);
+            AVRational avDisplayAspectRatio;
+            av_reduce(&avDisplayAspectRatio.num, &avDisplayAspectRatio.den,
+                      codec->width  * avSampleAspectRatio.num,
+                      codec->height * avSampleAspectRatio.den,
+                      1024*1024);
+            double displayAspectRatio = avDisplayAspectRatio.num;
+            if (avDisplayAspectRatio.den)
+                displayAspectRatio /= avDisplayAspectRatio.den;
+            if (displayAspectRatio)
+                result->add(Property::AspectRatio, displayAspectRatio);
 
             AVRational avFrameRate = av_guess_frame_rate(fmt_ctx, stream, NULL);
             double frameRate = avFrameRate.num;
diff --git a/src/formatstrings.cpp b/src/formatstrings.cpp
--- a/src/formatstrings.cpp
+++ b/src/formatstrings.cpp
@@ -151,3 +151,8 @@
 {
     return QString(QString::number(round(value.toDouble() * 100) / 100) + i18nc("Symbol of frames per second, with space", " fps"));
 }
+
+QString FormatStrings::formatAspectRatio(const QVariant& value)
+{
+    return QString(QString::number(round(value.toDouble() * 100) / 100) + QStringLiteral(":1"));
+}
diff --git a/src/formatstrings_p.h b/src/formatstrings_p.h
--- a/src/formatstrings_p.h
+++ b/src/formatstrings_p.h
@@ -51,6 +51,8 @@
 
     static QString formatAsFrameRate(const QVariant& value);
 
+    static QString formatAspectRatio(const QVariant& value);
+
 };
 
 }
diff --git a/src/propertyinfo.cpp b/src/propertyinfo.cpp
--- a/src/propertyinfo.cpp
+++ b/src/propertyinfo.cpp
@@ -70,7 +70,8 @@
         case Property::AspectRatio:
             d->name = QStringLiteral("aspectRatio");
             d->displayName = i18nc("@label", "Aspect Ratio");
-            d->valueType = QVariant::Int;
+            d->valueType = QVariant::Double;
+            d->formatAsString = &FormatStrings::formatAspectRatio;
             break;
 
         case Property::Author: