diff --git a/src/main/java/com/googlesource/gerrit/plugins/quota/MaxRepositorySizeQuota.java b/src/main/java/com/googlesource/gerrit/plugins/quota/MaxRepositorySizeQuota.java
index f23d11f..90f3483 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/quota/MaxRepositorySizeQuota.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/quota/MaxRepositorySizeQuota.java
@@ -17,8 +17,10 @@
 import com.google.common.cache.CacheLoader;
 import com.google.common.cache.LoadingCache;
 import com.google.common.collect.Ordering;
+import com.google.gerrit.extensions.annotations.PluginName;
 import com.google.gerrit.reviewdb.client.Project;
 import com.google.gerrit.server.cache.CacheModule;
+import com.google.gerrit.server.config.PluginConfigFactory;
 import com.google.gerrit.server.git.GitRepositoryManager;
 import com.google.gerrit.server.git.ReceivePackInitializer;
 import com.google.gerrit.server.project.ProjectCache;
@@ -28,6 +30,9 @@
 import com.google.inject.name.Named;
 
 import org.apache.commons.lang.mutable.MutableLong;
+import org.eclipse.jgit.internal.storage.file.FileRepository;
+import org.eclipse.jgit.internal.storage.file.GC;
+import org.eclipse.jgit.internal.storage.file.GC.RepoStatistics;
 import org.eclipse.jgit.lib.Repository;
 import org.eclipse.jgit.transport.PostReceiveHook;
 import org.eclipse.jgit.transport.ReceiveCommand;
@@ -144,15 +149,23 @@
   static class Loader extends CacheLoader<Project.NameKey, AtomicLong> {
 
     private final GitRepositoryManager gitManager;
+    private final boolean useGitObjectCount;
 
     @Inject
-    Loader(GitRepositoryManager gitManager) {
+    Loader(GitRepositoryManager gitManager,
+        PluginConfigFactory cfg,
+        @PluginName String pluginName) {
       this.gitManager = gitManager;
+      this.useGitObjectCount = cfg.getFromGerritConfig(pluginName)
+          .getBoolean("useGitObjectCount", false);
     }
 
     @Override
     public AtomicLong load(Project.NameKey project) throws IOException {
-      try (Repository git = gitManager.openRepository(project)){
+      try (Repository git = gitManager.openRepository(project)) {
+        if (useGitObjectCount) {
+          return new AtomicLong(getDiskUsageByGitObjectCount(git));
+        }
         return new AtomicLong(getDiskUsage(git.getDirectory()));
       }
     }
@@ -171,6 +184,12 @@
       });
       return size.longValue();
     }
+
+    private long getDiskUsageByGitObjectCount(Repository repo)
+        throws IOException {
+      RepoStatistics stats = new GC((FileRepository) repo).getStatistics();
+      return stats.sizeOfLooseObjects + stats.sizeOfPackedObjects;
+    }
   }
 
   @Override
diff --git a/src/main/resources/Documentation/config.md b/src/main/resources/Documentation/config.md
index ea254a7..31c32b9 100644
--- a/src/main/resources/Documentation/config.md
+++ b/src/main/resources/Documentation/config.md
@@ -119,6 +119,20 @@
     maxTotalSize = 20 m
 ```
 
+If one prefers computing a repository size by adding the size of the git objects,
+the following section should be added into the `gerrit.config` file:
+
+```
+  [plugin "quota"]
+        useGitObjectCount = true
+```
+
+<a id="useGitObjectCount">
+`plugin.quota.useGitObjectCount`
+: Use git object count. If true, *repoSize = looseObjectsSize +
+packedObjectsSize*, where *looseObjectsSize* and *packedObjectsSize* are given
+by JGit RepoStatistics. By default, false.
+
 Publication Schedule
 --------------------