diff --git a/docs/functions/core/llist/why2_list_get_size.md b/docs/functions/core/llist/why2_list_get_size.md
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+<!--
+This is part of WHY2
+Copyright (C) 2022 Václav Šmejkal
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <https://www.gnu.org/licenses/>.
+-->
+
+# why2_list_get_size
+
+## Parameters
+
+| Identifier | Data type                                                   |
+| ---------- | ----------------------------------------------------------- |
+| `list`     | [`why2_list_t *`](../../../../types/core/llist/why2_list_t) |
+
+## Attributes
+
+|                     |                                                                       |
+| ------------------  | --------------------------------------------------------------------- |
+| **Return type**     | `unsigned long`                                                       |
+| **Header comment**  | `GET SIZE`                                                            |
+| **Added in commit** | [`c4ddb6888afd807abc3c60576475c170e306a5ba`](https://github.com/ENGO150/WHY2/commit/c4ddb6888afd807abc3c60576475c170e306a5ba) |
+
+## Description
+
+Calculates size of `list` (how many nodes are present) and returns it.
\ No newline at end of file
diff --git a/docs/functions/index.md b/docs/functions/index.md
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--- a/docs/functions/index.md
+++ b/docs/functions/index.md
@@ -82,6 +82,7 @@ You can find documentation for every *public* function of WHY2 below.
 | [`why2_list_remove_at`](./core/llist/why2_list_remove_at)     | Remove element with index index     |
 | [`why2_list_remove_back`](./core/llist/why2_list_remove_back) | Remove last element                 |
 | [`why2_list_find`](./core/llist/why2_list_find)               | Find element in list                |
+| [`why2_list_get_size`](./core/llist/why2_list_get_size)       | Get size                            |
 
 ## Logger