diff --git a/lib/std/collections/range.c3 b/lib/std/collections/range.c3
index 20d0590f7..ce57066cb 100644
--- a/lib/std/collections/range.c3
+++ b/lib/std/collections/range.c3
@@ -16,6 +16,11 @@ fn usz Range.len(&self) @operator(len)
 	return (usz)(self.end - self.start + (Type)1);
 }
 
+fn bool Range.has(&self, Type value) @inline
+{
+	return value >= self.start && value <= self.end;
+}
+
 /**
  * @require index < self.len() : "Can't index into an empty range"
  **/
@@ -46,6 +51,11 @@ fn usz ExclusiveRange.len(&self) @operator(len)
 	return (usz)(self.end - self.start);
 }
 
+fn bool ExclusiveRange.has(&self, Type value) @inline
+{
+	return value >= self.start && value < self.end;
+}
+
 fn void! ExclusiveRange.to_format(&self, Formatter* formatter) @dynamic
 {
 	formatter.printf("[%s..<%s]", self.start, self.end)!;
diff --git a/test/unit/stdlib/collections/range.c3 b/test/unit/stdlib/collections/range.c3
index a88d89ebb..0314be0a5 100644
--- a/test/unit/stdlib/collections/range.c3
+++ b/test/unit/stdlib/collections/range.c3
@@ -4,18 +4,6 @@ import std::collections::range;
 def IntRange = Range(<int>);
 def IntExRange = ExclusiveRange(<int>);
 
-fn void! test_exrange()
-{
-	IntExRange range = { -4, 2 };
-	int sum = 0;
-	foreach (int z : range)
-	{
-		assert(z >= -4 && z < 2);
-		sum += z * z;
-	}
-	assert(sum == 31);
-}
-
 fn void! test_range()
 {
 	IntRange range = { -4, 2 };
@@ -26,5 +14,23 @@ fn void! test_range()
 		sum += z * z;
 	}
 	assert(sum == 35);
+	assert(range.has(-4));
+	assert(range.has(2));
+	assert(!range.has(3));
+}
+
+fn void! test_exrange()
+{
+	IntExRange range = { -4, 2 };
+	int sum = 0;
+	foreach (int z : range)
+	{
+		assert(z >= -4 && z < 2);
+		sum += z * z;
+	}
+	assert(sum == 31);
+	assert(range.has(-4));
+	assert(range.has(1));
+	assert(!range.has(2));
 }