diff --git a/modules/calculate/calculate.sh b/modules/calculate/calculate.sh
new file mode 100755
index 0000000..01a1bf5
--- /dev/null
+++ b/modules/calculate/calculate.sh
@@ -0,0 +1,11 @@
+[ -f functions.sh ] && source functions.sh
+
+calculate() {
+    calc -- "$*" | tr -d '[:space:]'
+}
+
+name="$1"
+shift
+chan="$1"
+shift
+msg "$chan" "$name: $(calculate "$*")"