diff --git a/Userland/Libraries/LibC/float.h b/Userland/Libraries/LibC/float.h
index 2bf8abd099..6b0d383580 100644
--- a/Userland/Libraries/LibC/float.h
+++ b/Userland/Libraries/LibC/float.h
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * Copyright (c) 2021, Mițca Dumitru <dumitru0mitca@gmail.com>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -25,3 +26,47 @@
  */
 
 #pragma once
+
+#include <fenv.h>
+
+#define FLT_RADIX 2
+#define DECIMAL_DIG 21
+#define FLT_DECIMAL_DIG 9
+#define DBL_DECIMAL_DIG 17
+#define LDBL_DECIMAL_DIG 21
+#define FLT_MIN 1.17549e-38
+#define DBL_MIN 2.22507e-308
+#define LDBL_MIN 3.3621e-4932
+#define FLT_TRUE_MIN 1.4013e-45
+#define DBL_TRUE_MIN 4.94066e-324
+#define LDBL_TRUE_MIN 3.6452e-4951
+#define FLT_MAX 3.40282e+38
+#define DBL_MAX 1.79769e+308
+#define LDBL_MAX 1.18973e+4932
+#define FLT_EPSILON 1.19209e-07
+#define DBL_EPSILON 2.22045e-16
+#define LDBL_EPSILON 1.0842e-19
+#define FLT_DIG 6
+#define DBL_DIG 15
+#define LDBL_DIG 18
+#define FLT_MANT_DIG 24
+#define DBL_MANT_DIG 53
+#define LDBL_MANT_DIG 64
+#define FLT_MIN_EXP -125
+#define DBL_MIN_EXP -1021
+#define LDBL_MIN_EXP -16381
+#define FLT_MIN_10_EXP -37
+#define DBL_MIN_10_EXP -307
+#define LDBL_MIN_10_EXP -4931
+#define FLT_MAX_EXP 128
+#define DBL_MAX_EXP 1024
+#define LDBL_MAX_EXP 16384
+#define FLT_MAX_10_EXP 38
+#define DBL_MAX_10_EXP 308
+#define LDBL_MAX_10_EXP 4932
+
+#define FLT_ROUNDS (fegetround()) // Note: this not might be true for non-x86 platforms
+
+#define FLT_HAS_SUBNORM 1
+#define DBL_HAS_SUBNORM 1
+#define LDBL_HAS_SUBNORM 1