diff --git a/sprout/functional/hash/hash.hpp b/sprout/functional/hash/hash.hpp
index 9d55d6f5..446f4702 100644
--- a/sprout/functional/hash/hash.hpp
+++ b/sprout/functional/hash/hash.hpp
@@ -182,16 +182,43 @@ namespace sprout {
 	// hash_range
 	//
 	template<typename Iterator>
-	inline SPROUT_CONSTEXPR std::size_t hash_range(Iterator first, Iterator last) {
-		return sprout::hash_range(0, first, last);
-	}
-	template<typename Iterator>
 	inline SPROUT_CONSTEXPR std::size_t hash_range(std::size_t seed, Iterator first, Iterator last) {
 		return first != last
 			? sprout::hash_range(sprout::hash_combine(seed, *first), sprout::next(first), last)
 			: seed
 			;
 	}
+	template<typename Iterator>
+	inline SPROUT_CONSTEXPR std::size_t hash_range(Iterator first, Iterator last) {
+		return sprout::hash_range(0, first, last);
+	}
+
+	namespace detail {
+		template<typename T>
+		inline SPROUT_CONSTEXPR std::size_t hash_values_combine_impl(std::size_t seed, T const& v) {
+			return sprout::hash_combine(seed, v);
+		}
+		template<typename Head, typename... Tail>
+		inline SPROUT_CONSTEXPR std::size_t hash_values_combine_impl(std::size_t seed, Head const& head, Tail const&... tail) {
+			return sprout::detail::hash_values_combine_impl(sprout::hash_combine(seed, head), tail...);
+		}
+	}	// namespace detail
+
+	//
+	// hash_values_combine
+	//
+	template<typename... Args>
+	inline SPROUT_CONSTEXPR std::size_t hash_values_combine(std::size_t seed, Args const&... args) {
+		return sprout::detail::hash_values_combine_impl(seed, args...);
+	}
+
+	//
+	// hash_values
+	//
+	template<typename... Args>
+	inline SPROUT_CONSTEXPR std::size_t hash_values(Args const&... args) {
+		return sprout::hash_values_combine(0, args...);
+	}
 
 	//
 	// hash
diff --git a/sprout/tuple/tuple.hpp b/sprout/tuple/tuple.hpp
index 101edf4f..86316466 100644
--- a/sprout/tuple/tuple.hpp
+++ b/sprout/tuple/tuple.hpp
@@ -9,5 +9,6 @@
 #include <sprout/tuple/tuple/make_tuple.hpp>
 #include <sprout/tuple/tuple/comparison.hpp>
 #include <sprout/tuple/tuple/type_traits.hpp>
+#include <sprout/tuple/tuple/hash.hpp>
 
 #endif	// #ifndef SPROUT_TUPLE_TUPLE_HPP
diff --git a/sprout/tuple/tuple/hash.hpp b/sprout/tuple/tuple/hash.hpp
new file mode 100644
index 00000000..bde91f95
--- /dev/null
+++ b/sprout/tuple/tuple/hash.hpp
@@ -0,0 +1,32 @@
+#ifndef SPROUT_TUPLE_TUPLE_HASH_HPP
+#define SPROUT_TUPLE_TUPLE_HASH_HPP
+
+#include <cstddef>
+#include <sprout/config.hpp>
+#include <sprout/index_tuple.hpp>
+#include <sprout/functional/hash/hash.hpp>
+#include <sprout/tuple/tuple/tuple.hpp>
+#include <sprout/tuple/tuple/get.hpp>
+
+namespace sprout {
+	namespace detail {
+		template<typename... Types, sprout::index_t... Indexes>
+		inline SPROUT_CONSTEXPR std::size_t tuple_hash_value_impl(
+			sprout::tuples::tuple<Types...> const& v,
+			sprout::index_tuple<Indexes...>
+			)
+		{
+			return sprout::hash_values(sprout::tuples::get<Indexes>(v)...);
+		}
+	}	// namespace detail
+
+	template<typename... Types>
+	inline SPROUT_CONSTEXPR std::size_t hash_value(sprout::tuples::tuple<Types...> const& v) {
+		return sprout::detail::tuple_hash_value_impl(
+			v,
+			sprout::index_range<0, sprout::tuples::tuple_size<sprout::tuples::tuple<Types...> >::value>::make()
+			);
+	}
+}	// namespace sprout
+
+#endif	// #ifndef SPROUT_TUPLE_TUPLE_HASH_HPP