diff --git a/Userland/Libraries/LibM/math.cpp b/Userland/Libraries/LibM/math.cpp
index 3cab183d24..e1059d3589 100644
--- a/Userland/Libraries/LibM/math.cpp
+++ b/Userland/Libraries/LibM/math.cpp
@@ -868,6 +868,36 @@ long double roundl(long double value) NOEXCEPT
     return internal_to_integer(value, RoundingMode::ToEven);
 }
 
+long lroundf(float value) NOEXCEPT
+{
+    return internal_to_integer(value, RoundingMode::ToEven);
+}
+
+long lround(double value) NOEXCEPT
+{
+    return internal_to_integer(value, RoundingMode::ToEven);
+}
+
+long lroundl(long double value) NOEXCEPT
+{
+    return internal_to_integer(value, RoundingMode::ToEven);
+}
+
+long long llroundf(float value) NOEXCEPT
+{
+    return internal_to_integer(value, RoundingMode::ToEven);
+}
+
+long long llround(double value) NOEXCEPT
+{
+    return internal_to_integer(value, RoundingMode::ToEven);
+}
+
+long long llroundd(long double value) NOEXCEPT
+{
+    return internal_to_integer(value, RoundingMode::ToEven);
+}
+
 float floorf(float value) NOEXCEPT
 {
     return internal_to_integer(value, RoundingMode::Down);
diff --git a/Userland/Libraries/LibM/math.h b/Userland/Libraries/LibM/math.h
index c6ce9733cf..55bfdcfb56 100644
--- a/Userland/Libraries/LibM/math.h
+++ b/Userland/Libraries/LibM/math.h
@@ -123,6 +123,12 @@ long double truncl(long double) NOEXCEPT;
 double round(double) NOEXCEPT;
 float roundf(float) NOEXCEPT;
 long double roundl(long double) NOEXCEPT;
+long lroundf(float) NOEXCEPT;
+long lround(double) NOEXCEPT;
+long lroundl(long double) NOEXCEPT;
+long long llroundf(float) NOEXCEPT;
+long long llround(double) NOEXCEPT;
+long long llroundd(long double) NOEXCEPT;
 double rint(double) NOEXCEPT;
 float rintf(float) NOEXCEPT;
 long lrintl(long double) NOEXCEPT;