diff --git a/reactos/dll/win32/msvcrt/msvcrt.spec b/reactos/dll/win32/msvcrt/msvcrt.spec
index 28b9ef2669e..2586559e1d5 100644
--- a/reactos/dll/win32/msvcrt/msvcrt.spec
+++ b/reactos/dll/win32/msvcrt/msvcrt.spec
@@ -761,7 +761,7 @@
 @ cdecl _wsystem(wstr)
 @ cdecl _wtempnam(wstr wstr)
 @ cdecl _wtmpnam(ptr)
-# @ cdecl _wtof(wstr)
+@ cdecl _wtof(wstr)
 @ cdecl _wtoi(wstr)
 @ cdecl _wtoi64(wstr)
 @ cdecl _wtol(wstr)
diff --git a/reactos/sdk/lib/crt/crt.cmake b/reactos/sdk/lib/crt/crt.cmake
index a896a849de3..8de8a670632 100644
--- a/reactos/sdk/lib/crt/crt.cmake
+++ b/reactos/sdk/lib/crt/crt.cmake
@@ -305,6 +305,7 @@ list(APPEND CRT_SOURCE
     string/wcstombs_s.c
     string/wcstoul.c
     string/wctype.c
+    string/wtof.c
     string/wtoi.c
     string/wtoi64.c
     string/wtol.c
diff --git a/reactos/sdk/lib/crt/string/wtof.c b/reactos/sdk/lib/crt/string/wtof.c
new file mode 100644
index 00000000000..5906bac68ea
--- /dev/null
+++ b/reactos/sdk/lib/crt/string/wtof.c
@@ -0,0 +1,10 @@
+#include <precomp.h>
+
+/*
+ * @implemented
+ */
+double
+_wtof(const wchar_t *str)
+{
+  return wcstod(str, 0);
+}