diff --git a/src/components/Status.tsx b/src/components/Status.tsx
index 3a7463f..6640c6d 100644
--- a/src/components/Status.tsx
+++ b/src/components/Status.tsx
@@ -48,9 +48,11 @@ export const Status: React.FC<StatusProps> = ({
   notifications,
   verbose,
 }) => {
-  const allspace = typeof status?.allspace === "number" ? status.allspace : 0;
-  const freespace =
+  const allspaceMB = typeof status?.allspace === "number" ? status.allspace : 0;
+  const freespaceMB =
     typeof status?.freespace === "number" ? status.freespace : 0;
+  const allspace = allspaceMB * 1024 * 1024;
+  const freespace = freespaceMB * 1024 * 1024;
   const usedSpace = allspace - freespace;
   const freePercentage =
     allspace > 0 ? Math.round((freespace / allspace) * 100) : 0;
diff --git a/src/lib/core/beambox-uploader.ts b/src/lib/core/beambox-uploader.ts
index 95ef6ae..439a0b3 100644
--- a/src/lib/core/beambox-uploader.ts
+++ b/src/lib/core/beambox-uploader.ts
@@ -195,12 +195,12 @@ export class BeamBoxUploader {
       return false;
     }
 
-    const freespaceKB = Number(deviceStatus.freespace) || 0;
-    const freespaceBytes = freespaceKB * 1024;
-    const payloadKB = Math.ceil(payloadSizeBytes / 1024);
+    const freespaceMB = Number(deviceStatus.freespace) || 0;
+    const freespaceBytes = freespaceMB * 1024 * 1024;
+    const payloadMB = (payloadSizeBytes / (1024 * 1024)).toFixed(2);
 
     logger.info(
-      `Storage check: payload=${payloadKB}KB, available=${freespaceKB}KB`,
+      `Storage check: payload=${payloadMB}MB, available=${freespaceMB}MB`,
     );
 
     // Add 10% safety margin to avoid filling device completely
@@ -208,7 +208,7 @@ export class BeamBoxUploader {
 
     if (freespaceBytes < requiredBytes) {
       logger.error(
-        `Insufficient storage: need ${Math.ceil(requiredBytes / 1024)}KB (with 10% margin), have ${freespaceKB}KB`,
+        `Insufficient storage: need ${(requiredBytes / (1024 * 1024)).toFixed(2)}MB (with 10% margin), have ${freespaceMB}MB`,
       );
       return false;
     }
diff --git a/src/lib/protocol/interfaces/device-status.ts b/src/lib/protocol/interfaces/device-status.ts
index ed173f3..04f4fd4 100644
--- a/src/lib/protocol/interfaces/device-status.ts
+++ b/src/lib/protocol/interfaces/device-status.ts
@@ -8,12 +8,12 @@ export interface DeviceStatus {
   type: PacketType.DEVICE_STATUS;
 
   /**
-   * Total storage capacity in kilobytes (KB)
+   * Total storage capacity in megabytes (MB)
    */
   allspace: number;
 
   /**
-   * Available free storage in kilobytes (KB)
+   * Available free storage in megabytes (MB)
    */
   freespace: number;
 
diff --git a/src/lib/protocol/packet-types.ts b/src/lib/protocol/packet-types.ts
index 96c60d1..8b38107 100644
--- a/src/lib/protocol/packet-types.ts
+++ b/src/lib/protocol/packet-types.ts
@@ -109,8 +109,8 @@ export enum PacketType {
    * ```json
    * {
    *   "type": 13,
-   *   "allspace": 16384,     // Total storage in KB
-   *   "freespace": 13892,    // Free storage in KB
+   *   "allspace": 16384,     // Total storage in MB
+   *   "freespace": 13892,    // Free storage in MB
    *   "devname": "",         // Device name (usually empty)
    *   "size": "368,368",     // Display resolution (width,height)
    *   "brand": 0             // Brand/model identifier