diff --git a/src/include/units/physical/dimensions.h b/src/include/units/physical/dimensions.h
index 10a10a32..cf6692a0 100644
--- a/src/include/units/physical/dimensions.h
+++ b/src/include/units/physical/dimensions.h
@@ -63,6 +63,10 @@ struct dim_angle : base_dimension<"A", U> {};
 
 // ------------------------ derived dimensions -----------------------------
 
+
+template<typename Child, Unit U, DimensionOf<dim_angle> A, DimensionOf<dim_time> T>
+struct dim_angular_velocity : derived_dimension<Child, U, exp<A, 1>, exp<T, -1>> {};
+
 template<typename Child, Unit U, DimensionOf<dim_time> T>
 struct dim_frequency : derived_dimension<Child, U, exp<T, -1>> {};
 
@@ -206,6 +210,9 @@ concept LuminousIntensity = QuantityOf<T, dim_luminous_intensity>;
 template <typename T>
 concept Angle = QuantityOf<T, dim_angle>;
 
+template <typename T>
+concept AngularVelocity = QuantityOf<T, dim_angular_velocity>;
+
 template<typename T>
 concept Frequency = QuantityOf<T, dim_frequency>;
 
diff --git a/src/include/units/physical/si.h b/src/include/units/physical/si.h
index a10e104a..106860e7 100644
--- a/src/include/units/physical/si.h
+++ b/src/include/units/physical/si.h
@@ -25,6 +25,8 @@
 #include "si/absorbed_dose.h"
 #include "si/acceleration.h"
 #include "si/area.h"
+#include "si/angle.h"
+#include "si/angular_velocity.h"
 #include "si/capacitance.h"
 #include "si/catalytic_activity.h"
 #include "si/charge_density.h"
diff --git a/src/include/units/physical/si/angular_velocity.h b/src/include/units/physical/si/angular_velocity.h
new file mode 100644
index 00000000..c26ab131
--- /dev/null
+++ b/src/include/units/physical/si/angular_velocity.h
@@ -0,0 +1,49 @@
+// The MIT License (MIT)
+//
+// Copyright (c) 2018 Mateusz Pusz
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#pragma once
+
+#include <units/physical/dimensions.h>
+#include <units/physical/si/angle.h>
+#include <units/physical/si/time.h>
+
+#include <units/quantity.h>
+
+namespace units::physical::si {
+
+struct radian_per_second : named_unit<radian_per_second, "ω", no_prefix> {};
+
+struct dim_angular_velocity : physical::dim_angular_velocity<dim_angular_velocity, radian_per_second, dim_angle, dim_time> {};
+
+template<Unit U, Scalar Rep = double>
+using angular_velocity = quantity<dim_angular_velocity, U, Rep>;
+
+inline namespace literals {
+
+// rad / s
+constexpr auto operator"" q_rad_per_s(unsigned long long l) { return angular_velocity<radian_per_second, std::int64_t>(l); }
+constexpr auto operator"" q_rad_per_s(long double l) { return angular_velocity<radian_per_second, long double>(l); }
+
+
+}  // namespace literals
+
+}  // namespace units::physical::si
diff --git a/test/unit_test/static/si_test.cpp b/test/unit_test/static/si_test.cpp
index 65ce7e3b..21fc12e5 100644
--- a/test/unit_test/static/si_test.cpp
+++ b/test/unit_test/static/si_test.cpp
@@ -377,4 +377,7 @@ static_assert(1q_J_per_mol * 1q_mol_per_m3 * 1q_m3 == 1q_N * 1q_m);
 
 static_assert(detail::unit_text<dim_molar_energy, joule_per_mole>() == "J/mol");
 
+// angular velocity
+static_assert(1q_rad / 1q_s == 1q_rad_per_s);
+static_assert(detail::unit_text<dim_angular_velocity, radian_per_second>() == "ω");
 }  // namespace