diff --git a/bin/dec2hex b/bin/dec2hex
new file mode 100755
index 0000000..47de1cb
--- /dev/null
+++ b/bin/dec2hex
@@ -0,0 +1,2 @@
+#!/bin/bash
+printf '%x\n' $1 | tr '[:lower:]' '[:upper:]'
diff --git a/bin/hex2dec b/bin/hex2dec
new file mode 100755
index 0000000..4910440
--- /dev/null
+++ b/bin/hex2dec
@@ -0,0 +1,2 @@
+#!/bin/bash
+echo $((16#$1))