diff --git a/frontend/api/class-interfaces/recipe-units.ts b/frontend/api/class-interfaces/recipe-units.ts
index a63f8a055bb2..0650f14e60d0 100644
--- a/frontend/api/class-interfaces/recipe-units.ts
+++ b/frontend/api/class-interfaces/recipe-units.ts
@@ -6,9 +6,15 @@ const prefix = "/api";
 const routes = {
   unit: `${prefix}/units`,
   unitsUnit: (tag: string) => `${prefix}/units/${tag}`,
+  merge: `${prefix}/units/merge`,
 };
 
 export class UnitAPI extends BaseCRUDAPI<IngredientUnit, CreateIngredientUnit> {
   baseRoute: string = routes.unit;
   itemRoute = routes.unitsUnit;
+
+  merge(fromId: string, toId: string) {
+    // @ts-ignore TODO: fix this
+    return this.requests.put<IngredientUnit>(routes.merge, { fromUnit: fromId, toUnit: toId });
+  }
 }
diff --git a/frontend/pages/group/data/units.vue b/frontend/pages/group/data/units.vue
index abc8d7718e90..ac37dab72b57 100644
--- a/frontend/pages/group/data/units.vue
+++ b/frontend/pages/group/data/units.vue
@@ -1,15 +1,30 @@
 <template>
   <div>
+    <!-- Merge Dialog -->
+    <BaseDialog v-model="mergeDialog" :icon="$globals.icons.units" title="Combine Unit" @confirm="mergeUnits">
+      <v-card-text>
+        Combining the selected units will merge the Source Unit and Target Unit into a single unit. The
+        <strong> Source Unit will be deleted </strong> and all of the references to the Source Unit will be updated to
+        point to the Target Unit.
+        <v-autocomplete v-model="fromUnit" return-object :items="units" item-text="name" label="Source Unit" />
+        <v-autocomplete v-model="toUnit" return-object :items="units" item-text="name" label="Target Unit" />
+
+        <template v-if="canMerge && fromUnit && toUnit">
+          <div class="text-center">Merging {{ fromUnit.name }} into {{ toUnit.name }}</div>
+        </template>
+      </v-card-text>
+    </BaseDialog>
+
     <!-- Edit Dialog -->
     <BaseDialog
       v-model="editDialog"
       :icon="$globals.icons.units"
-      title="Edit Food"
+      title="Edit Unit"
       :submit-text="$tc('general.save')"
-      @submit="editSaveFood"
+      @submit="editSaveUnit"
     >
       <v-card-text v-if="editTarget">
-        <v-form ref="domCreateFoodForm">
+        <v-form ref="domCreateUnitForm">
           <v-text-field v-model="editTarget.name" label="Name" :rules="[validators.required]"></v-text-field>
           <v-text-field v-model="editTarget.abbreviation" label="Abbreviation"></v-text-field>
           <v-text-field v-model="editTarget.description" label="Description"></v-text-field>
@@ -24,7 +39,7 @@
       :title="$tc('general.confirm')"
       :icon="$globals.icons.alertCircle"
       color="error"
-      @confirm="deleteFood"
+      @confirm="deleteUnit"
     >
       <v-card-text>
         {{ $t("general.confirm-delete-generic") }}
@@ -41,6 +56,12 @@
       @delete-one="deleteEventHandler"
       @edit-one="editEventHandler"
     >
+      <template #button-row>
+        <BaseButton @click="mergeDialog = true">
+          <template #icon> {{ $globals.icons.units }} </template>
+          Combine
+        </BaseButton>
+      </template>
       <template #item.fraction="{ item }">
         <v-icon :color="item.fraction ? 'success' : undefined">
           {{ item.fraction ? $globals.icons.check : $globals.icons.close }}
@@ -51,7 +72,7 @@
 </template>
 
 <script lang="ts">
-import { defineComponent, onMounted, ref } from "@nuxtjs/composition-api";
+import { computed, defineComponent, onMounted, ref } from "@nuxtjs/composition-api";
 import { validators } from "~/composables/use-validators";
 import { useUserApi } from "~/composables/api";
 import { IngredientUnit } from "~/types/api-types/recipe";
@@ -92,12 +113,12 @@ export default defineComponent({
       },
     ];
     const units = ref<IngredientUnit[]>([]);
-    async function refreshFoods() {
+    async function refreshUnits() {
       const { data } = await userApi.units.getAll();
       units.value = data ?? [];
     }
     onMounted(() => {
-      refreshFoods();
+      refreshUnits();
     });
     const editDialog = ref(false);
     const editTarget = ref<IngredientUnit | null>(null);
@@ -105,14 +126,14 @@ export default defineComponent({
       editTarget.value = item;
       editDialog.value = true;
     }
-    async function editSaveFood() {
+    async function editSaveUnit() {
       if (!editTarget.value) {
         return;
       }
 
       const { data } = await userApi.units.updateOne(editTarget.value.id, editTarget.value);
       if (data) {
-        refreshFoods();
+        refreshUnits();
       }
 
       editDialog.value = false;
@@ -123,18 +144,41 @@ export default defineComponent({
       deleteTarget.value = item;
       deleteDialog.value = true;
     }
-    async function deleteFood() {
+    async function deleteUnit() {
       if (!deleteTarget.value) {
         return;
       }
 
       const { data } = await userApi.units.deleteOne(deleteTarget.value.id);
       if (data) {
-        refreshFoods();
+        refreshUnits();
       }
       deleteDialog.value = false;
     }
 
+    // ============================================================
+    // Merge Units
+
+    const mergeDialog = ref(false);
+    const fromUnit = ref<IngredientUnit | null>(null);
+    const toUnit = ref<IngredientUnit | null>(null);
+
+    const canMerge = computed(() => {
+      return fromUnit.value && toUnit.value && fromUnit.value.id !== toUnit.value.id;
+    });
+
+    async function mergeUnits() {
+      if (!canMerge.value || !fromUnit.value || !toUnit.value) {
+        return;
+      }
+
+      const { data } = await userApi.units.merge(fromUnit.value.id, toUnit.value.id);
+
+      if (data) {
+        refreshUnits();
+      }
+    }
+
     // ============================================================
     // Labels
 
@@ -155,12 +199,18 @@ export default defineComponent({
       // Edit
       editDialog,
       editEventHandler,
-      editSaveFood,
+      editSaveUnit,
       editTarget,
       // Delete
       deleteEventHandler,
       deleteDialog,
-      deleteFood,
+      deleteUnit,
+      // Merge
+      canMerge,
+      mergeUnits,
+      mergeDialog,
+      fromUnit,
+      toUnit,
     };
   },
 });
diff --git a/mealie/repos/repository_factory.py b/mealie/repos/repository_factory.py
index 9b25736243a0..09abfc0de080 100644
--- a/mealie/repos/repository_factory.py
+++ b/mealie/repos/repository_factory.py
@@ -29,6 +29,7 @@ from mealie.db.models.users import LongLiveToken, User
 from mealie.db.models.users.password_reset import PasswordResetModel
 from mealie.repos.repository_foods import RepositoryFood
 from mealie.repos.repository_meal_plan_rules import RepositoryMealPlanRules
+from mealie.repos.repository_units import RepositoryUnit
 from mealie.schema.cookbook.cookbook import ReadCookBook
 from mealie.schema.group.group_events import GroupEventNotifierOut
 from mealie.schema.group.group_exports import GroupDataExport
@@ -99,8 +100,8 @@ class AllRepositories:
         return RepositoryFood(self.session, PK_ID, IngredientFoodModel, IngredientFood)
 
     @cached_property
-    def ingredient_units(self) -> RepositoryGeneric[IngredientUnit, IngredientUnitModel]:
-        return RepositoryGeneric(self.session, PK_ID, IngredientUnitModel, IngredientUnit)
+    def ingredient_units(self) -> RepositoryUnit:
+        return RepositoryUnit(self.session, PK_ID, IngredientUnitModel, IngredientUnit)
 
     @cached_property
     def tools(self) -> RepositoryGeneric[RecipeTool, Tool]:
diff --git a/mealie/repos/repository_units.py b/mealie/repos/repository_units.py
new file mode 100644
index 000000000000..14d1a8e8bbc8
--- /dev/null
+++ b/mealie/repos/repository_units.py
@@ -0,0 +1,32 @@
+from pydantic import UUID4
+
+from mealie.db.models.recipe.ingredient import IngredientUnitModel
+from mealie.schema.recipe.recipe_ingredient import IngredientUnit
+
+from .repository_generic import RepositoryGeneric
+
+
+class RepositoryUnit(RepositoryGeneric[IngredientUnit, IngredientUnitModel]):
+    def merge(self, from_unit: UUID4, to_unit: UUID4) -> IngredientUnit | None:
+
+        from_model: IngredientUnitModel = (
+            self.session.query(self.sql_model).filter_by(**self._filter_builder(**{"id": from_unit})).one()
+        )
+
+        to_model: IngredientUnitModel = (
+            self.session.query(self.sql_model).filter_by(**self._filter_builder(**{"id": to_unit})).one()
+        )
+
+        to_model.ingredients += from_model.ingredients
+
+        try:
+            self.session.delete(from_model)
+            self.session.commit()
+        except Exception as e:
+            self.session.rollback()
+            raise e
+
+        return self.get_one(to_unit)
+
+    def by_group(self, group_id: UUID4) -> "RepositoryUnit":
+        return super().by_group(group_id)  # type: ignore
diff --git a/mealie/routes/unit_and_foods/foods.py b/mealie/routes/unit_and_foods/foods.py
index 01e13ff9f167..d3f2c3438e9f 100644
--- a/mealie/routes/unit_and_foods/foods.py
+++ b/mealie/routes/unit_and_foods/foods.py
@@ -8,12 +8,7 @@ from mealie.routes._base.controller import controller
 from mealie.routes._base.mixins import CrudMixins
 from mealie.schema import mapper
 from mealie.schema.query import GetAll
-from mealie.schema.recipe.recipe_ingredient import (
-    CreateIngredientFood,
-    IngredientFood,
-    IngredientMerge,
-    SaveIngredientFood,
-)
+from mealie.schema.recipe.recipe_ingredient import CreateIngredientFood, IngredientFood, MergeFood, SaveIngredientFood
 from mealie.schema.response.responses import SuccessResponse
 
 router = APIRouter(prefix="/foods", tags=["Recipes: Foods"])
@@ -34,7 +29,7 @@ class IngredientFoodsController(BaseUserController):
         )
 
     @router.put("/merge", response_model=SuccessResponse)
-    def merge_one(self, data: IngredientMerge):
+    def merge_one(self, data: MergeFood):
         try:
             self.repo.merge(data.from_food, data.to_food)
             return SuccessResponse.respond("Successfully merged foods")
diff --git a/mealie/routes/unit_and_foods/units.py b/mealie/routes/unit_and_foods/units.py
index de4e3db81043..a89ea99072b4 100644
--- a/mealie/routes/unit_and_foods/units.py
+++ b/mealie/routes/unit_and_foods/units.py
@@ -1,6 +1,6 @@
 from functools import cached_property
 
-from fastapi import APIRouter, Depends
+from fastapi import APIRouter, Depends, HTTPException
 from pydantic import UUID4
 
 from mealie.routes._base.abc_controller import BaseUserController
@@ -8,7 +8,8 @@ from mealie.routes._base.controller import controller
 from mealie.routes._base.mixins import CrudMixins
 from mealie.schema import mapper
 from mealie.schema.query import GetAll
-from mealie.schema.recipe.recipe_ingredient import CreateIngredientUnit, IngredientUnit, SaveIngredientUnit
+from mealie.schema.recipe.recipe_ingredient import CreateIngredientUnit, IngredientUnit, MergeUnit, SaveIngredientUnit
+from mealie.schema.response.responses import SuccessResponse
 
 router = APIRouter(prefix="/units", tags=["Recipes: Units"])
 
@@ -27,6 +28,15 @@ class IngredientUnitsController(BaseUserController):
             self.registered_exceptions,
         )
 
+    @router.put("/merge", response_model=SuccessResponse)
+    def merge_one(self, data: MergeUnit):
+        try:
+            self.repo.merge(data.from_unit, data.to_unit)
+            return SuccessResponse.respond("Successfully merged units")
+        except Exception as e:
+            self.deps.logger.error(e)
+            raise HTTPException(500, "Failed to merge units") from e
+
     @router.get("", response_model=list[IngredientUnit])
     def get_all(self, q: GetAll = Depends(GetAll)):
         return self.repo.get_all(start=q.start, limit=q.limit)
diff --git a/mealie/schema/recipe/recipe_ingredient.py b/mealie/schema/recipe/recipe_ingredient.py
index 1d0cdcc1cc5a..06e160787c27 100644
--- a/mealie/schema/recipe/recipe_ingredient.py
+++ b/mealie/schema/recipe/recipe_ingredient.py
@@ -95,11 +95,16 @@ class IngredientRequest(MealieModel):
     ingredient: str
 
 
-class IngredientMerge(MealieModel):
+class MergeFood(MealieModel):
     from_food: UUID4
     to_food: UUID4
 
 
+class MergeUnit(MealieModel):
+    from_unit: UUID4
+    to_unit: UUID4
+
+
 from mealie.schema.labels.multi_purpose_label import MultiPurposeLabelSummary
 
 IngredientFood.update_forward_refs()
diff --git a/tests/unit_tests/repository_tests/test_unit_repository.py b/tests/unit_tests/repository_tests/test_unit_repository.py
new file mode 100644
index 000000000000..2bd382968160
--- /dev/null
+++ b/tests/unit_tests/repository_tests/test_unit_repository.py
@@ -0,0 +1,48 @@
+from mealie.repos.repository_factory import AllRepositories
+from mealie.schema.recipe.recipe import Recipe
+from mealie.schema.recipe.recipe_ingredient import RecipeIngredient, SaveIngredientUnit
+from tests.utils.factories import random_string
+from tests.utils.fixture_schemas import TestUser
+
+
+def test_unit_merger(database: AllRepositories, unique_user: TestUser):
+    slug1 = random_string(10)
+
+    unit_1 = database.ingredient_units.create(
+        SaveIngredientUnit(
+            name=random_string(10),
+            group_id=unique_user.group_id,
+        )
+    )
+
+    unit_2 = database.ingredient_units.create(
+        SaveIngredientUnit(
+            name=random_string(10),
+            group_id=unique_user.group_id,
+        )
+    )
+
+    recipe = database.recipes.create(
+        Recipe(
+            name=slug1,
+            user_id=unique_user.group_id,
+            group_id=unique_user.group_id,
+            recipe_ingredient=[
+                RecipeIngredient(note="", unit=unit_1),  # type: ignore
+                RecipeIngredient(note="", unit=unit_2),  # type: ignore
+            ],
+        )  # type: ignore
+    )
+
+    # Santiy check make sure recipe got created
+    assert recipe.id is not None
+
+    for ing in recipe.recipe_ingredient:
+        assert ing.unit.id in [unit_1.id, unit_2.id]  # type: ignore
+
+    database.ingredient_units.merge(unit_2.id, unit_1.id)
+
+    recipe = database.recipes.get_one(recipe.slug)
+
+    for ingredient in recipe.recipe_ingredient:
+        assert ingredient.unit.id == unit_1.id  # type: ignore