diff --git a/src/core/include/units/dimension.h b/src/core/include/units/dimension.h
index f2ff1ecb..22f3aeac 100644
--- a/src/core/include/units/dimension.h
+++ b/src/core/include/units/dimension.h
@@ -212,7 +212,7 @@ struct derived_dimension_impl : detail::expr_fractions<derived_dimension<>, Ds..
 template<DerivedDimensionSpec... Ds>
 struct derived_dimension : detail::derived_dimension_impl<Ds...> {
   template<typename Self, Unit U>
-    requires valid_unit_for_dimension<U, Self> || (sizeof...(Ds) == 0 && convertible(U{}, one))
+    requires valid_unit_for_dimension<U, Self> || (sizeof...(Ds) == 0 && interconvertible(U{}, one))
   [[nodiscard]] constexpr auto operator[](this const Self, U)
   {
     return reference<Self{}, U{}>{};
@@ -227,7 +227,7 @@ struct derived_dimension;
 template<DerivedDimensionSpec... Ds>
 struct derived_dimension<Ds...> : detail::derived_dimension_impl<Ds...> {
   template<Unit U>
-    requires valid_unit_for_dimension<U, derived_dimension> || (sizeof...(Ds) == 0 && convertible(U{}, one))
+    requires valid_unit_for_dimension<U, derived_dimension> || (sizeof...(Ds) == 0 && interconvertible(U{}, one))
   [[nodiscard]] constexpr auto operator[](U) const
   {
     return reference<derived_dimension{}, U{}>{};
@@ -238,7 +238,7 @@ template<typename Self, DerivedDimension D>
 struct derived_dimension<Self, D> : D {
   template<Unit U>
     requires valid_unit_for_dimension<U, Self> ||
-             (convertible(derived_dimension{}, derived_dimension<>{}) && convertible(U{}, one))
+             (interconvertible(derived_dimension{}, derived_dimension<>{}) && interconvertible(U{}, one))
   [[nodiscard]] constexpr auto operator[](U) const
   {
     return reference<Self{}, U{}>{};
@@ -325,7 +325,7 @@ template<Dimension Lhs, Dimension Rhs>
 }
 
 template<Dimension D1, Dimension D2>
-[[nodiscard]] consteval bool convertible(D1, D2)
+[[nodiscard]] consteval bool interconvertible(D1, D2)
 {
   return std::derived_from<D1, D2> || std::derived_from<D2, D1>;
 }
@@ -383,7 +383,7 @@ concept associated_unit = Unit<U> && requires(U u) { get_dimension_for_impl(get_
 }
 
 template<Unit auto U, Dimension auto Dim>
-  requires requires { detail::get_dimension_for(U); } && (convertible(Dim, detail::get_dimension_for(U)))
+  requires requires { detail::get_dimension_for(U); } && (interconvertible(Dim, detail::get_dimension_for(U)))
 inline constexpr bool is_valid_unit_for_dimension<U, Dim> = true;
 
 }  // namespace detail
@@ -402,7 +402,7 @@ namespace std {
  * the two provided.
  */
 template<units::Dimension D1, units::Dimension D2>
-  requires(units::convertible(D1{}, D2{}))
+  requires(units::interconvertible(D1{}, D2{}))
 struct common_type<D1, D2> {
   using type = ::units::conditional<std::derived_from<std::remove_const_t<D1>, std::remove_const_t<D2>>,
                                     std::remove_const_t<D1>, std::remove_const_t<D2>>;
diff --git a/src/core/include/units/quantity.h b/src/core/include/units/quantity.h
index bb2f2209..1d4c65b4 100644
--- a/src/core/include/units/quantity.h
+++ b/src/core/include/units/quantity.h
@@ -70,7 +70,7 @@ concept harmonic_ =  // exposition only
 template<typename QFrom, typename QTo>
 concept quantity_convertible_to_ =  // exposition only
   Quantity<QFrom> && Quantity<QTo> &&
-  convertible(QFrom::reference, QTo::reference) && scalable_with_<typename QFrom::rep, typename QTo::rep> &&
+  interconvertible(QFrom::reference, QTo::reference) && scalable_with_<typename QFrom::rep, typename QTo::rep> &&
   (floating_point_<QTo> || (!floating_point_<QFrom> && harmonic_<QFrom, QTo>));
 
 template<typename Func, typename T, typename U>
@@ -470,7 +470,7 @@ explicit quantity(Q) -> quantity<reference<quantity_like_traits<Q>::dimension, q
 
 // non-member binary operators
 template<Quantity Q1, Quantity Q2>
-  requires(convertible(Q1::reference, Q2::reference)) &&
+  requires(interconvertible(Q1::reference, Q2::reference)) &&
           quantity_value_for_<std::plus<>, typename Q1::rep, typename Q2::rep>
 [[nodiscard]] constexpr Quantity auto operator+(const Q1& lhs, const Q2& rhs)
 {
@@ -480,7 +480,7 @@ template<Quantity Q1, Quantity Q2>
 }
 
 template<Quantity Q1, Quantity Q2>
-  requires(convertible(Q1::reference, Q2::reference)) &&
+  requires(interconvertible(Q1::reference, Q2::reference)) &&
           quantity_value_for_<std::minus<>, typename Q1::rep, typename Q2::rep>
 [[nodiscard]] constexpr Quantity auto operator-(const Q1& lhs, const Q2& rhs)
 {
@@ -506,7 +506,7 @@ template<Quantity Q1, Quantity Q2>
 
 template<Quantity Q1, Quantity Q2>
   requires(!floating_point_<typename Q1::rep>) && (!floating_point_<typename Q2::rep>) &&
-          (convertible(Q1::reference, Q2::reference) || quantity_of<Q2, dimension_one>) &&
+          (interconvertible(Q1::reference, Q2::reference) || quantity_of<Q2, dimension_one>) &&
           quantity_value_for_<std::modulus<>, typename Q1::rep, typename Q2::rep>
 [[nodiscard]] constexpr Quantity auto operator%(const Q1& lhs, const Q2& rhs)
 {
@@ -517,7 +517,7 @@ template<Quantity Q1, Quantity Q2>
 }
 
 template<Quantity Q1, Quantity Q2>
-  requires(convertible(Q1::reference, Q2::reference)) &&
+  requires(interconvertible(Q1::reference, Q2::reference)) &&
           std::three_way_comparable_with<typename Q1::rep, typename Q2::rep>
 [[nodiscard]] constexpr auto operator<=>(const Q1& lhs, const Q2& rhs)
 {
@@ -526,7 +526,7 @@ template<Quantity Q1, Quantity Q2>
 }
 
 template<Quantity Q1, Quantity Q2>
-  requires(convertible(Q1::reference, Q2::reference)) &&
+  requires(interconvertible(Q1::reference, Q2::reference)) &&
           std::equality_comparable_with<typename Q1::rep, typename Q2::rep>
 [[nodiscard]] constexpr bool operator==(const Q1& lhs, const Q2& rhs)
 {
diff --git a/src/core/include/units/quantity_cast.h b/src/core/include/units/quantity_cast.h
index ee98058d..836c37bc 100644
--- a/src/core/include/units/quantity_cast.h
+++ b/src/core/include/units/quantity_cast.h
@@ -85,7 +85,7 @@ struct cast_traits<From, To> {
  * @tparam To a target quantity type to cast to
  */
 template<Quantity To, auto R, scalable_with_<typename To::rep> Rep>
-  requires(convertible(To::reference, R))
+  requires(interconvertible(To::reference, R))
 [[nodiscard]] constexpr auto quantity_cast(const quantity<R, Rep>& q)
 {
   if constexpr (R.unit == To::unit) {
@@ -122,7 +122,7 @@ template<Quantity To, auto R, scalable_with_<typename To::rep> Rep>
  * @tparam ToU a unit type to use for a target quantity
  */
 template<Reference auto ToR, auto R, typename Rep>
-  requires(convertible(ToR, R))
+  requires(interconvertible(ToR, R))
 [[nodiscard]] constexpr auto quantity_cast(const quantity<R, Rep>& q)
 {
   return quantity_cast<quantity<ToR, Rep>>(q);
@@ -142,7 +142,7 @@ template<Reference auto ToR, auto R, typename Rep>
  * @tparam ToD a dimension type to use for a target quantity
  */
 template<Dimension auto ToD, auto R, typename Rep>
-  requires(convertible(ToD, R.dimension))
+  requires(interconvertible(ToD, R.dimension))
 [[nodiscard]] constexpr auto quantity_cast(const quantity<R, Rep>& q)
 {
   constexpr reference<ToD, quantity<R, Rep>::unit> r;
@@ -162,7 +162,7 @@ template<Dimension auto ToD, auto R, typename Rep>
  * @tparam ToU a unit type to use for a target quantity
  */
 template<Unit auto ToU, auto R, typename Rep>
-  requires(convertible(ToU, R.unit))
+  requires(interconvertible(ToU, R.unit))
 [[nodiscard]] constexpr auto quantity_cast(const quantity<R, Rep>& q)
 {
   constexpr reference<quantity<R, Rep>::dimension, ToU> r;
diff --git a/src/core/include/units/reference.h b/src/core/include/units/reference.h
index cc312c47..ed8d478d 100644
--- a/src/core/include/units/reference.h
+++ b/src/core/include/units/reference.h
@@ -102,9 +102,9 @@ template<Representation Rep, Reference R>
 void /*Use `q * (1 * r)` rather than `q * r`.*/ operator*(Quantity auto, Reference auto) = delete;
 
 template<Reference R1, Reference R2>
-[[nodiscard]] consteval bool convertible(R1, R2)
+[[nodiscard]] consteval bool interconvertible(R1, R2)
 {
-  return convertible(R1::dimension, R2::dimension) && convertible(R1::unit, R2::unit);
+  return interconvertible(R1::dimension, R2::dimension) && interconvertible(R1::unit, R2::unit);
 }
 
 
@@ -115,7 +115,7 @@ struct system_reference {
   static constexpr auto coherent_unit = CoU;
 
   template<Unit U>
-    requires(convertible(coherent_unit, U{}))
+    requires(interconvertible(coherent_unit, U{}))
   [[nodiscard]] constexpr reference<dimension, U{}> operator[](U) const
   {
     return {};
diff --git a/src/core/include/units/unit.h b/src/core/include/units/unit.h
index 03eebcfe..6001a8ec 100644
--- a/src/core/include/units/unit.h
+++ b/src/core/include/units/unit.h
@@ -531,7 +531,7 @@ template<Unit Lhs, Unit Rhs>
 
 // Convertible
 template<Unit Lhs, Unit Rhs>
-[[nodiscard]] consteval bool convertible(Lhs lhs, Rhs rhs)
+[[nodiscard]] consteval bool interconvertible(Lhs lhs, Rhs rhs)
 {
   auto canonical_lhs = detail::get_canonical_unit(lhs);
   auto canonical_rhs = detail::get_canonical_unit(rhs);
@@ -827,7 +827,7 @@ template<typename U1, typename U2>
 namespace std {
 
 template<units::Unit U1, units::Unit U2>
-  requires(units::convertible(U1{}, U2{}))
+  requires(units::interconvertible(U1{}, U2{}))
 struct common_type<U1, U2> {
   using type = std::remove_const_t<decltype(::units::detail::common_type_impl(U1{}, U2{}))>;
 };
diff --git a/test/unit_test/static/dimension_test.cpp b/test/unit_test/static/dimension_test.cpp
index f45e2dbd..c4e46edf 100644
--- a/test/unit_test/static/dimension_test.cpp
+++ b/test/unit_test/static/dimension_test.cpp
@@ -171,14 +171,14 @@ static_assert(speed == speed);
 static_assert(length / length == dimension_one);
 
 static_assert(1 / time != frequency);
-static_assert(convertible(1 / time, frequency));
+static_assert(interconvertible(1 / time, frequency));
 static_assert(1 / frequency == time);
 static_assert(frequency * time == dimension_one);
 static_assert(std::is_same_v<std::common_type_t<decltype(1 / time), decltype(frequency)>, frequency_>);
 static_assert(std::is_same_v<std::common_type_t<decltype(frequency), decltype(1 / time)>, frequency_>);
 
 static_assert(length * length != area);
-static_assert(convertible(length * length, area));
+static_assert(interconvertible(length * length, area));
 static_assert(length * length != volume);
 static_assert(area / length == length);
 static_assert(std::is_same_v<std::common_type_t<decltype(length * length), decltype(area)>, area_>);
@@ -212,7 +212,7 @@ static_assert(acceleration / speed != frequency);
 
 // comparison of convertible named dimensions
 static_assert(velocity != speed);
-static_assert(convertible(speed, velocity));
+static_assert(interconvertible(speed, velocity));
 static_assert(std::is_same_v<std::common_type_t<decltype(velocity), decltype(speed)>, velocity_>);
 static_assert(std::is_same_v<std::common_type_t<decltype(speed), decltype(velocity)>, velocity_>);
 
@@ -220,16 +220,16 @@ static_assert(std::is_same_v<std::common_type_t<decltype(speed), decltype(veloci
 static_assert(is_of_type<mass * acceleration, derived_dimension<length_, mass_, per<units::power<time_, 2>>>>);
 static_assert(is_of_type<acceleration * mass, derived_dimension<length_, mass_, per<units::power<time_, 2>>>>);
 static_assert(mass * acceleration == acceleration * mass);
-static_assert(convertible(mass * acceleration, acceleration* mass));
+static_assert(interconvertible(mass * acceleration, acceleration* mass));
 
 // comparisons of equivalent but not convertible dimensions
 static_assert(energy != torque);
-static_assert(!convertible(energy, torque));
+static_assert(!interconvertible(energy, torque));
 
 static_assert(force * length != energy);
 static_assert(force * length != torque);
-static_assert(convertible(force * length, energy));
-static_assert(convertible(force * length, torque));
+static_assert(interconvertible(force * length, energy));
+static_assert(interconvertible(force * length, torque));
 template<auto T1, auto T2>
 concept no_common_type = requires {
                            requires !requires { typename std::common_type_t<decltype(T1), decltype(T2)>; };
@@ -238,28 +238,28 @@ concept no_common_type = requires {
 static_assert(no_common_type<energy, torque>);
 
 static_assert(frequency != action);
-static_assert(!convertible(frequency, action));
+static_assert(!interconvertible(frequency, action));
 static_assert(no_common_type<frequency, action>);
 
 // dimension_one
-static_assert(convertible(power / power, efficiency));
+static_assert(interconvertible(power / power, efficiency));
 static_assert(power / power != efficiency);
 static_assert(dimension_one != efficiency);
 
-static_assert(!convertible(efficiency, strain));
+static_assert(!interconvertible(efficiency, strain));
 static_assert(efficiency != strain);
 
 static_assert(stress / stress != strain);
 static_assert(stress / stress != efficiency);
-static_assert(convertible(stress / stress, strain));
-static_assert(convertible(stress / stress, efficiency));
+static_assert(interconvertible(stress / stress, strain));
+static_assert(interconvertible(stress / stress, efficiency));
 
 // comparison of not equivalent dimensions
 static_assert(length != time);
-static_assert(!convertible(length, time));
+static_assert(!interconvertible(length, time));
 
 static_assert(acceleration != speed);
-static_assert(!convertible(acceleration, speed));
+static_assert(!interconvertible(acceleration, speed));
 
 // power
 static_assert(is_of_type<pow<2>(length), derived_dimension<units::power<length_, 2>>>);
diff --git a/test/unit_test/static/unit_test.cpp b/test/unit_test/static/unit_test.cpp
index 0c56ffee..cb1c2ddd 100644
--- a/test/unit_test/static/unit_test.cpp
+++ b/test/unit_test/static/unit_test.cpp
@@ -118,15 +118,15 @@ static_assert(!NamedUnit<kilometre_>);
 static_assert(is_of_type<metre, metre_>);
 static_assert(is_of_type<get_canonical_unit(metre).reference_unit, metre_>);
 static_assert(get_canonical_unit(metre).mag == mag<1>);
-static_assert(convertible(metre, metre));
-static_assert(!convertible(metre, second));
+static_assert(interconvertible(metre, metre));
+static_assert(!interconvertible(metre, second));
 static_assert(metre == metre);
 static_assert(metre != second);
 
 static_assert(is_of_type<degree_Celsius, degree_Celsius_>);
 static_assert(is_of_type<get_canonical_unit(degree_Celsius).reference_unit, kelvin_>);
 static_assert(get_canonical_unit(degree_Celsius).mag == mag<1>);
-static_assert(convertible(degree_Celsius, kelvin));
+static_assert(interconvertible(degree_Celsius, kelvin));
 static_assert(degree_Celsius == kelvin);
 
 static_assert(is_of_type<radian, radian_>);
@@ -136,28 +136,28 @@ static_assert(get_canonical_unit(radian).mag == mag<1>);
 static_assert(is_of_type<degree, degree_>);
 static_assert(is_of_type<get_canonical_unit(degree).reference_unit, one_>);
 static_assert(get_canonical_unit(degree).mag == mag_pi / mag<180>);
-static_assert(convertible(radian, degree));
+static_assert(interconvertible(radian, degree));
 static_assert(radian != degree);
 
 static_assert(is_of_type<steradian, steradian_>);
 static_assert(is_of_type<get_canonical_unit(steradian).reference_unit, one_>);
 static_assert(get_canonical_unit(steradian).mag == mag<1>);
-static_assert(convertible(radian, steradian));  // !!!
-static_assert(radian == steradian);             // !!!
+static_assert(interconvertible(radian, steradian));  // !!!
+static_assert(radian == steradian);                  // !!!
 
 static_assert(is_of_type<minute, minute_>);
 static_assert(is_of_type<get_canonical_unit(minute).reference_unit, second_>);
 static_assert(get_canonical_unit(minute).mag == mag<60>);
-static_assert(convertible(minute, second));
+static_assert(interconvertible(minute, second));
 static_assert(minute != second);
 
 static_assert(is_of_type<hour, hour_>);
 static_assert(is_of_type<get_canonical_unit(hour).reference_unit, second_>);
 static_assert(get_canonical_unit(hour).mag == mag<3600>);
-static_assert(convertible(hour, second));
+static_assert(interconvertible(hour, second));
 
-static_assert(convertible(hour, minute));
-static_assert(convertible(hour, hour));
+static_assert(interconvertible(hour, minute));
+static_assert(interconvertible(hour, hour));
 static_assert(hour != second);
 static_assert(hour != minute);
 static_assert(hour == hour);
@@ -166,14 +166,14 @@ static_assert(is_of_type<newton, newton_>);
 static_assert(
   is_of_type<get_canonical_unit(newton).reference_unit, derived_unit<gram_, metre_, per<power<second_, 2>>>>);
 static_assert(get_canonical_unit(newton).mag == mag<1000>);  // !!! (because of kilogram)
-static_assert(convertible(newton, newton));
+static_assert(interconvertible(newton, newton));
 static_assert(newton == newton);
 
 static_assert(is_of_type<joule, joule_>);
 static_assert(
   is_of_type<get_canonical_unit(joule).reference_unit, derived_unit<gram_, power<metre_, 2>, per<power<second_, 2>>>>);
 static_assert(get_canonical_unit(joule).mag == mag<1000>);  // !!! (because of kilogram)
-static_assert(convertible(joule, joule));
+static_assert(interconvertible(joule, joule));
 static_assert(joule == joule);
 static_assert(joule != newton);
 
@@ -183,7 +183,7 @@ static_assert(is_of_type<nu_second / nu_second, one_>);
 static_assert(is_of_type<kilometre, kilometre_>);
 static_assert(is_of_type<get_canonical_unit(kilometre).reference_unit, metre_>);
 static_assert(get_canonical_unit(kilometre).mag == mag<1000>);
-static_assert(convertible(kilometre, metre));
+static_assert(interconvertible(kilometre, metre));
 static_assert(kilometre != metre);
 static_assert(kilometre.symbol == "km");
 
@@ -191,7 +191,7 @@ static_assert(is_of_type<kilojoule, kilojoule_>);
 static_assert(is_of_type<get_canonical_unit(kilojoule).reference_unit,
                          derived_unit<gram_, power<metre_, 2>, per<power<second_, 2>>>>);
 static_assert(get_canonical_unit(kilojoule).mag == mag<1'000'000>);
-static_assert(convertible(kilojoule, joule));
+static_assert(interconvertible(kilojoule, joule));
 static_assert(kilojoule != joule);
 static_assert(kilojoule.symbol == "kJ");
 
@@ -407,30 +407,30 @@ static_assert(si::kilo<metre> * si::milli<metre> == si::deca<metre> * si::deci<m
 
 // comparisons of equivalent units (named vs unnamed/derived)
 static_assert(1 / second == hertz);
-static_assert(convertible(1 / second, hertz));
+static_assert(interconvertible(1 / second, hertz));
 
 // comparisons of equivalent units of different quantities
 static_assert(hertz == becquerel);
-static_assert(convertible(hertz, becquerel));
+static_assert(interconvertible(hertz, becquerel));
 
 // comparisons of scaled units
 static_assert(si::kilo<metre> == kilometre);
 static_assert(mag<1000> * metre == si::kilo<metre>);
 static_assert(mag<1000> * metre == kilometre);
-static_assert(convertible(si::kilo<metre>, kilometre));
-static_assert(convertible(mag<1000> * metre, si::kilo<metre>));
-static_assert(convertible(mag<1000> * metre, kilometre));
+static_assert(interconvertible(si::kilo<metre>, kilometre));
+static_assert(interconvertible(mag<1000> * metre, si::kilo<metre>));
+static_assert(interconvertible(mag<1000> * metre, kilometre));
 
 static_assert(metre != kilometre);
-static_assert(convertible(metre, kilometre));
+static_assert(interconvertible(metre, kilometre));
 static_assert(mag<100> * metre != kilometre);
-static_assert(convertible(mag<100> * metre, kilometre));
+static_assert(interconvertible(mag<100> * metre, kilometre));
 static_assert(si::milli<metre> != kilometre);
-static_assert(convertible(si::milli<metre>, kilometre));
+static_assert(interconvertible(si::milli<metre>, kilometre));
 
 // comparisons of non-convertible units
 static_assert(metre != metre * metre);
-static_assert(!convertible(metre, metre* metre));
+static_assert(!interconvertible(metre, metre* metre));
 
 // one
 static_assert(is_of_type<metre / metre, one_>);