diff --git a/docs/README.md b/docs/README.md
index 63f8727939..426979f86b 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -7,4 +7,10 @@
 ## Perimeter
 - Circle: P = 2πR
 - Rectangle: P = 2a + 2b
-- Square: P = 4a
\ No newline at end of file
+- Square: P = 4a
+
+## Volume
+- Sphere: V = (4/3)πR³
+- Rectangular Parallelepiped: V = a * b * c
+- Cube: V = a³
+