diff --git a/reflex/state.py b/reflex/state.py
index e7e6bcf32..bd656b388 100644
--- a/reflex/state.py
+++ b/reflex/state.py
@@ -107,6 +107,7 @@ from reflex.utils.exceptions import (
     StateSchemaMismatchError,
     StateSerializationError,
     StateTooLargeError,
+    UnretrievableVarValueError,
 )
 from reflex.utils.exec import is_testing_env
 from reflex.utils.serializers import serializer
@@ -1596,6 +1597,36 @@ class BaseState(Base, ABC, extra=pydantic.Extra.allow):
         # Slow case - fetch missing parent states from redis.
         return await self._get_state_from_redis(state_cls)
 
+    async def get_var_value(self, var: Var) -> Any:
+        """Get the value of an rx.Var from another state.
+
+        Args:
+            var: The var to get the value for.
+
+        Returns:
+            The value of the var.
+
+        Raises:
+            UnretrievableVarValueError: If the var does not have a literal value
+                or associated state.
+        """
+        # Fast case: this is a literal var and the value is known.
+        if hasattr(var, "_var_value"):
+            return var._var_value
+        var_data = var._get_all_var_data()
+        if var_data is None or not var_data.state:
+            raise UnretrievableVarValueError(
+                f"Unable to retrieve value for {var._js_expr}: not associated with any state."
+            )
+        # Fastish case: this var belongs to this state
+        if var_data.state == self.get_full_name():
+            return getattr(self, var_data.field_name)
+        # Slow case: this var belongs to another state
+        other_state = await self.get_state(
+            self._get_root_state().get_class_substate(var_data.state)
+        )
+        return getattr(other_state, var_data.field_name)
+
     def _get_event_handler(
         self, event: Event
     ) -> tuple[BaseState | StateProxy, EventHandler]:
diff --git a/reflex/utils/exceptions.py b/reflex/utils/exceptions.py
index ae5ec0168..bceadc977 100644
--- a/reflex/utils/exceptions.py
+++ b/reflex/utils/exceptions.py
@@ -187,3 +187,7 @@ def raise_system_package_missing_error(package: str) -> NoReturn:
 
 class InvalidLockWarningThresholdError(ReflexError):
     """Raised when an invalid lock warning threshold is provided."""
+
+
+class UnretrievableVarValueError(ReflexError):
+    """Raised when the value of a var is not retrievable."""
diff --git a/tests/units/test_state.py b/tests/units/test_state.py
index 912d72f4f..2176e828f 100644
--- a/tests/units/test_state.py
+++ b/tests/units/test_state.py
@@ -60,6 +60,7 @@ from reflex.utils.exceptions import (
     ReflexRuntimeError,
     SetUndefinedStateVarError,
     StateSerializationError,
+    UnretrievableVarValueError,
 )
 from reflex.utils.format import json_dumps
 from reflex.vars.base import Var, computed_var
@@ -3764,3 +3765,32 @@ async def test_upcast_event_handler_arg(handler, payload):
     state = UpcastState()
     async for update in state._process_event(handler, state, payload):
         assert update.delta == {UpcastState.get_full_name(): {"passed": True}}
+
+
+@pytest.mark.asyncio
+async def test_get_var_value(state_manager, token):
+    """Test that get_var_value works correctly.
+
+    Args:
+        state_manager: The state manager to use.
+        token: A token.
+    """
+    state = await state_manager.get_state(_substate_key(token, TestState))
+
+    # State Var from same state
+    assert await state.get_var_value(TestState.num1) == 0
+    state.num1 = 42
+    assert await state.get_var_value(TestState.num1) == 42
+
+    # State Var from another state
+    child_state = await state.get_state(ChildState)
+    assert await state.get_var_value(ChildState.count) == 23
+    child_state.count = 66
+    assert await state.get_var_value(ChildState.count) == 66
+
+    # LiteralVar with known value
+    assert await state.get_var_value(rx.Var.create([1, 2, 3])) == [1, 2, 3]
+
+    # Generic Var with no state
+    with pytest.raises(UnretrievableVarValueError):
+        await state.get_var_value(rx.Var("undefined"))