diff --git a/src/lib/constants.ts b/src/lib/constants.ts
index 11158c6..e688d52 100644
--- a/src/lib/constants.ts
+++ b/src/lib/constants.ts
@@ -79,13 +79,21 @@ export const inventorySizes = new Map([
 ]);
 
 export const metricModifiers: Map<number, string> = new Map([
-    /*[1000000000, "G"],*/
+    [1000000000, "G"],
     [1000000, "M"],
     [1000, "k"],
     [1, ""]
-])
+]);
 
-export const weightPerVolume = 1/0.37;
+export enum Density {
+    Ore = "ore",
+    Component = "component",
+}
+
+export const densityValues: Map<Density, number> = new Map([
+    [Density.Ore, 1/0.37],
+    [Density.Component, 1/0.047],
+])
 
 export const localization = new Map([
     ["space engineers", new Map([
@@ -230,7 +238,19 @@ export const localization = new Map([
     ["separator", new Map([
         ["en-GB", ","],
         ["de-DE", "."]
-    ])]
+    ])],
+    ["ore", new Map([
+        ["en-GB", "Ore"],
+        ["de-DE", "Erz"]
+    ])],
+    ["component", new Map([
+        ["en-GB", "Component"],
+        ["de-DE", "Komponente"]
+    ])],
+    ["density", new Map([
+        ["en-GB", "Density"],
+        ["de-DE", "Dichte"]
+    ])],
 ])
 
 export type Thruster = {
diff --git a/src/routes/+page.svelte b/src/routes/+page.svelte
index f16ce2b..03ff8dc 100644
--- a/src/routes/+page.svelte
+++ b/src/routes/+page.svelte
@@ -10,7 +10,7 @@
         localization, metricModifiers, type Thruster,
         ThrusterSize,
         ThrusterType,
-        thrustValues, weightPerVolume
+        thrustValues, Density, densityValues
     } from "$lib/constants";
     import {Input} from "$lib/components/ui/input";
     import {Label} from "$lib/components/ui/label";
@@ -26,6 +26,7 @@
             localStorage.setItem("thrusters", JSON.stringify(thrusters));
         }
     })
+
     let inventories: Array<InventoryType> = $state([])
     $effect(() => {
         if (mounted) {
@@ -33,28 +34,34 @@
         }
     })
 
-    let inventoryMultiplier = $state(1);
+    let inventoryMultiplier: number = $state(3);
     $effect(() => {
         if (mounted) {
             localStorage.setItem("inventoryMultiplier", inventoryMultiplier);
         }
     })
-    let gridSize = $state(Grids.Small);
+    let gridSize: Grids = $state(Grids.Small);
     $effect(() => {
         if (mounted) {
             localStorage.setItem("gridSize", gridSize);
         }
     })
 
-    let gravity = $state(1);
+    let gravity: number = $state(1);
     $effect(() => {
         if (mounted) {
             localStorage.setItem("gravity", gravity);
         }
     })
 
+    let density: Density = $state(Density.Ore);
+    $effect(() => {
+        if (mounted) {
+            localStorage.setItem("density", density);
+        }
+    })
 
-    let newThruster = $state({
+    let newThruster: Thruster = $state({
         type: ThrusterType.Atmospheric,
         size: ThrusterSize.Small,
     })
@@ -64,21 +71,21 @@
         }
     })
 
-    let newInventory = $state(InventoryType.CargoSmall)
+    let newInventory: InventoryType = $state(InventoryType.CargoMedium)
     $effect(() => {
         if (mounted) {
             localStorage.setItem("newInventory", JSON.stringify(newInventory))
         }
     })
 
-    let totalThrust = $derived.by(() => {
+    let totalThrust: number = $derived.by(() => {
         let thrust = 0;
         thrusters.forEach((thruster) => {
             thrust += getThrusterPower(thruster)
         })
         return thrust
     });
-    let totalVolume = $derived.by(() => {
+    let totalVolume: number = $derived.by(() => {
         let volume = 0;
         inventories.forEach((inventory) => {
             volume += getInventoryVolume(inventory);
@@ -86,12 +93,12 @@
         return volume;
     })
 
-    let maxWeight = $derived(totalThrust / (gravity * 9.81))
+    let maxWeight: number = $derived(totalThrust / (gravity * 9.81))
 
-    let maxVehicleWeight = $derived(maxWeight - totalVolume * weightPerVolume)
+    let maxVehicleWeight: number = $derived(maxWeight - totalVolume * densityValues.get(density))
 
     function weightConversion(weight: number): string {
-        if (weight > 1000) {
+        if (weight > 1000 || weight < -1000) {
             return applyUnits(weight/1000, "t")
         }
         else {
@@ -148,6 +155,9 @@
                 }
             }
         }
+        if (value < 0) {
+            return `-${applyUnits(value * -1, unit)}`
+        }
         let rounded = Math.round(((value + Number.EPSILON) * 100) / 100)
         return `${rounded}${unit}`
     }
@@ -173,6 +183,10 @@
             gravity = localStorage.getItem("gravity")
         }
 
+        if (localStorage.getItem("density") !== null) {
+            density = localStorage.getItem("density")
+        }
+
         if (localStorage.getItem("inventoryMultiplier") !== null) {
             inventoryMultiplier = localStorage.getItem("inventoryMultiplier")
         }
@@ -215,6 +229,17 @@
                 {/each}
             </div>
             <Separator />
+            <Label for="density">{localized("density")}</Label>
+            <div id="density" class="flex">
+                {#each Object.values(Density) as value}
+                    {#if density === value}
+                        <Button variant="primary">{localized(value)}</Button>
+                    {:else}
+                        <Button variant="secondary" onclick={() => density = value}>{localized(value)}</Button>
+                    {/if}
+                {/each}
+            </div>
+            <Separator />
             <p>{localized("liftableVehcileWeight")}: {weightConversion(maxVehicleWeight)}</p>
             <p>{localized("liftableWeight")}: {weightConversion(maxWeight)}</p>
         </Card.Content>