diff --git a/src/panels/config/energy/dialogs/dialog-energy-gas-settings.ts b/src/panels/config/energy/dialogs/dialog-energy-gas-settings.ts
index 0dfc85cc60..05698f0aff 100644
--- a/src/panels/config/energy/dialogs/dialog-energy-gas-settings.ts
+++ b/src/panels/config/energy/dialogs/dialog-energy-gas-settings.ts
@@ -9,6 +9,7 @@ import "../../../../components/ha-dialog";
 import "../../../../components/ha-formfield";
 import "../../../../components/ha-radio";
 import "../../../../components/ha-button";
+import "../../../../components/ha-markdown";
 import type { HaRadio } from "../../../../components/ha-radio";
 import "../../../../components/ha-textfield";
 import type { GasSourceTypeEnergyPreference } from "../../../../data/energy";
@@ -109,6 +110,15 @@ export class DialogEnergyGasSettings
       ? `${this.hass.config.currency}/${this._pickedDisplayUnit}`
       : undefined;
 
+    const pickedUnitClass =
+      this._pickedDisplayUnit &&
+      this._energy_units?.includes(this._pickedDisplayUnit)
+        ? "energy"
+        : this._pickedDisplayUnit &&
+            this._gas_units?.includes(this._pickedDisplayUnit)
+          ? "volume"
+          : undefined;
+
     const externalSource =
       this._source.stat_energy_from &&
       isExternalStatistic(this._source.stat_energy_from);
@@ -213,9 +223,33 @@ export class DialogEnergyGasSettings
               .hass=${this.hass}
               include-domains='["sensor", "input_number"]'
               .value=${this._source.entity_energy_price}
-              .label=${`${this.hass.localize(
+              .label=${this.hass.localize(
                 "ui.panel.config.energy.gas.dialog.cost_entity_input"
-              )} ${unitPrice ? ` (${unitPrice})` : ""}`}
+              )}
+              .helper=${pickedUnitClass
+                ? html`<ha-markdown
+                    .content=${this.hass.localize(
+                      "ui.panel.config.energy.gas.dialog.cost_entity_helper",
+                      pickedUnitClass === "energy"
+                        ? {
+                            currency: this.hass.config.currency,
+                            class: this.hass.localize(
+                              "ui.panel.config.energy.gas.dialog.cost_entity_helper_energy"
+                            ),
+                            unit1: "kWh",
+                            unit2: "Wh",
+                          }
+                        : {
+                            currency: this.hass.config.currency,
+                            class: this.hass.localize(
+                              "ui.panel.config.energy.gas.dialog.cost_entity_helper_volume"
+                            ),
+                            unit1: "m³",
+                            unit2: "ft³",
+                          }
+                    )}
+                  ></ha-markdown>`
+                : nothing}
               @value-changed=${this._priceEntityChanged}
             ></ha-entity-picker>`
           : ""}
diff --git a/src/panels/config/energy/dialogs/dialog-energy-water-settings.ts b/src/panels/config/energy/dialogs/dialog-energy-water-settings.ts
index 46d1552b06..8d54cf8541 100644
--- a/src/panels/config/energy/dialogs/dialog-energy-water-settings.ts
+++ b/src/panels/config/energy/dialogs/dialog-energy-water-settings.ts
@@ -9,6 +9,7 @@ import "../../../../components/ha-dialog";
 import "../../../../components/ha-button";
 import "../../../../components/ha-formfield";
 import "../../../../components/ha-radio";
+import "../../../../components/ha-markdown";
 import type { HaRadio } from "../../../../components/ha-radio";
 import "../../../../components/ha-textfield";
 import type { WaterSourceTypeEnergyPreference } from "../../../../data/energy";
@@ -16,11 +17,7 @@ import {
   emptyWaterEnergyPreference,
   energyStatisticHelpUrl,
 } from "../../../../data/energy";
-import {
-  getDisplayUnit,
-  getStatisticMetadata,
-  isExternalStatistic,
-} from "../../../../data/recorder";
+import { isExternalStatistic } from "../../../../data/recorder";
 import { getSensorDeviceClassConvertibleUnits } from "../../../../data/sensor";
 import type { HassDialog } from "../../../../dialogs/make-dialog-manager";
 import { haStyle, haStyleDialog } from "../../../../resources/styles";
@@ -40,8 +37,6 @@ export class DialogEnergyWaterSettings
 
   @state() private _costs?: "no-costs" | "number" | "entity" | "statistic";
 
-  @state() private _pickedDisplayUnit?: string | null;
-
   @state() private _water_units?: string[];
 
   @state() private _error?: string;
@@ -55,11 +50,6 @@ export class DialogEnergyWaterSettings
     this._source = params.source
       ? { ...params.source }
       : emptyWaterEnergyPreference();
-    this._pickedDisplayUnit = getDisplayUnit(
-      this.hass,
-      params.source?.stat_energy_from,
-      params.metadata
-    );
     this._costs = this._source.entity_energy_price
       ? "entity"
       : this._source.number_energy_price
@@ -79,7 +69,6 @@ export class DialogEnergyWaterSettings
     this._params = undefined;
     this._source = undefined;
     this._error = undefined;
-    this._pickedDisplayUnit = undefined;
     this._excludeList = undefined;
     fireEvent(this, "dialog-closed", { dialog: this.localName });
     return true;
@@ -92,10 +81,6 @@ export class DialogEnergyWaterSettings
 
     const pickableUnit = this._water_units?.join(", ") || "";
 
-    const unitPriceSensor = this._pickedDisplayUnit
-      ? `${this.hass.config.currency}/${this._pickedDisplayUnit}`
-      : undefined;
-
     const unitPriceFixed = `${this.hass.config.currency}/${
       this.hass.config.unit_system.volume === "gal" ? "gal" : "m³"
     }`;
@@ -202,9 +187,15 @@ export class DialogEnergyWaterSettings
               .hass=${this.hass}
               include-domains='["sensor", "input_number"]'
               .value=${this._source.entity_energy_price}
-              .label=${`${this.hass.localize(
+              .label=${this.hass.localize(
                 "ui.panel.config.energy.water.dialog.cost_entity_input"
-              )}${unitPriceSensor ? ` (${unitPriceSensor})` : ""}`}
+              )}
+              .helper=${html`<ha-markdown
+                .content=${this.hass.localize(
+                  "ui.panel.config.energy.water.dialog.cost_entity_helper",
+                  { currency: this.hass.config.currency }
+                )}
+              ></ha-markdown>`}
               @value-changed=${this._priceEntityChanged}
             ></ha-entity-picker>`
           : ""}
@@ -287,16 +278,6 @@ export class DialogEnergyWaterSettings
   }
 
   private async _statisticChanged(ev: CustomEvent<{ value: string }>) {
-    if (ev.detail.value) {
-      const metadata = await getStatisticMetadata(this.hass, [ev.detail.value]);
-      this._pickedDisplayUnit = getDisplayUnit(
-        this.hass,
-        ev.detail.value,
-        metadata[0]
-      );
-    } else {
-      this._pickedDisplayUnit = undefined;
-    }
     if (isExternalStatistic(ev.detail.value) && this._costs !== "statistic") {
       this._costs = "no-costs";
     }
diff --git a/src/translations/en.json b/src/translations/en.json
index 1c10ecca34..297cf06981 100644
--- a/src/translations/en.json
+++ b/src/translations/en.json
@@ -3206,6 +3206,9 @@
               "cost_stat_input": "[%key:ui::panel::config::energy::grid::flow_dialog::from::cost_stat_input%]",
               "cost_entity": "[%key:ui::panel::config::energy::grid::flow_dialog::from::cost_entity%]",
               "cost_entity_input": "[%key:ui::panel::config::energy::grid::flow_dialog::from::cost_entity_input%]",
+              "cost_entity_helper": "Any entity with a unit of `{currency}/(valid {class} unit)` (e.g. `{currency}/{unit1}` or `{currency}/{unit2}`) may be used and will be automatically converted.",
+              "cost_entity_helper_energy": "energy",
+              "cost_entity_helper_volume": "volume",
               "cost_number": "[%key:ui::panel::config::energy::grid::flow_dialog::from::cost_number%]",
               "cost_number_input": "[%key:ui::panel::config::energy::grid::flow_dialog::from::cost_number%]",
               "gas_usage": "Gas usage"
@@ -3229,6 +3232,7 @@
               "cost_stat_input": "[%key:ui::panel::config::energy::grid::flow_dialog::from::cost_stat_input%]",
               "cost_entity": "[%key:ui::panel::config::energy::grid::flow_dialog::from::cost_entity%]",
               "cost_entity_input": "[%key:ui::panel::config::energy::grid::flow_dialog::from::cost_entity_input%]",
+              "cost_entity_helper": "Any entity with a unit of `{currency}/(valid water unit)` (e.g. `{currency}/gal` or `{currency}/m³`) may be used and will be automatically converted.",
               "cost_number": "[%key:ui::panel::config::energy::grid::flow_dialog::from::cost_number%]",
               "cost_number_input": "[%key:ui::panel::config::energy::grid::flow_dialog::from::cost_number%]",
               "water_usage": "Water usage"