diff --git a/src/core/include/mp_units/bits/value_cast.h b/src/core/include/mp_units/bits/value_cast.h
index 370f40f7..41b8e7b7 100644
--- a/src/core/include/mp_units/bits/value_cast.h
+++ b/src/core/include/mp_units/bits/value_cast.h
@@ -44,7 +44,7 @@ class quantity;
  * @tparam ToU a unit to use for a target quantity
  */
 template<Unit auto ToU, auto R, typename Rep>
-  requires(interconvertible(ToU, get_unit(R)))
+  requires(convertible_to(get_unit(R), ToU))
 [[nodiscard]] constexpr Quantity auto value_cast(const quantity<R, Rep>& q)
 {
   if constexpr (detail::is_specialization_of_reference<R> || !AssociatedUnit<std::remove_const_t<decltype(ToU)>>) {
diff --git a/src/core/include/mp_units/reference.h b/src/core/include/mp_units/reference.h
index 94bbe1cf..f32a2db9 100644
--- a/src/core/include/mp_units/reference.h
+++ b/src/core/include/mp_units/reference.h
@@ -130,21 +130,21 @@ template<Reference R, typename Rep>
 void /*Use `q * (1 * r)` rather than `q * r`.*/ operator*(Quantity auto, Reference auto) = delete;
 
 template<auto Q1, auto U1, auto Q2, auto U2>
-[[nodiscard]] consteval bool interconvertible(reference<Q1, U1>, reference<Q2, U2>)
+[[nodiscard]] consteval bool convertible_to(reference<Q1, U1>, reference<Q2, U2>)
 {
-  return interconvertible(Q1, Q2) && interconvertible(U1, U2);
+  return convertible_to(Q1, Q2) && convertible_to(U1, U2);
 }
 
 template<auto Q1, auto U1, AssociatedUnit U2>
-[[nodiscard]] consteval bool interconvertible(reference<Q1, U1>, U2 u2)
+[[nodiscard]] consteval bool convertible_to(reference<Q1, U1>, U2 u2)
 {
-  return interconvertible(Q1, get_quantity_spec(u2)) && interconvertible(U1, u2);
+  return convertible_to(Q1, get_quantity_spec(u2)) && convertible_to(U1, u2);
 }
 
 template<AssociatedUnit U1, auto Q2, auto U2>
-[[nodiscard]] consteval bool interconvertible(U1 u1, reference<Q2, U2> r2)
+[[nodiscard]] consteval bool convertible_to(U1 u1, reference<Q2, U2>)
 {
-  return interconvertible(r2, u1);
+  return convertible_to(get_quantity_spec(u1), Q2) && convertible_to(u1, U2);
 }
 
 [[nodiscard]] consteval auto common_reference(AssociatedUnit auto u1, AssociatedUnit auto u2,
diff --git a/src/core/include/mp_units/system_reference.h b/src/core/include/mp_units/system_reference.h
index 354a5797..3935c9e9 100644
--- a/src/core/include/mp_units/system_reference.h
+++ b/src/core/include/mp_units/system_reference.h
@@ -62,7 +62,7 @@ struct system_reference {
   static constexpr auto coherent_unit = CoU;
 
   template<Unit U>
-    requires(interconvertible(coherent_unit, U{}))
+    requires(convertible_to(coherent_unit, U{}))
   [[nodiscard]] constexpr reference<quantity_spec, U{}> operator[](U) const
   {
     return {};