diff --git a/dvc/data/stage.py b/dvc/data/stage.py
index 591530360..67225d4c7 100644
--- a/dvc/data/stage.py
+++ b/dvc/data/stage.py
@@ -33,7 +33,7 @@ def _upload_file(from_fs_path, fs, odb, upload_odb):
     tmp_info = fs_path.join(upload_odb.fs_path, tmp_fname())
     with fs.open(from_fs_path, mode="rb", chunk_size=fs.CHUNK_SIZE) as stream:
         stream = HashedStreamReader(stream)
-        size = fs.getsize(from_fs_path)
+        size = fs.size(from_fs_path)
         upload_odb.fs.upload(
             stream, tmp_info, desc=fs_path.name(from_fs_path), total=size
         )
diff --git a/dvc/data/tree.py b/dvc/data/tree.py
index 5996a7490..0d60327ca 100644
--- a/dvc/data/tree.py
+++ b/dvc/data/tree.py
@@ -226,7 +226,7 @@ class Tree(HashFile):
 def du(odb, tree):
     try:
         return sum(
-            odb.fs.getsize(odb.hash_to_path(oid.value)) for _, _, oid in tree
+            odb.fs.size(odb.hash_to_path(oid.value)) for _, _, oid in tree
         )
     except FileNotFoundError:
         return None
diff --git a/dvc/fs/base.py b/dvc/fs/base.py
index cd82a1b99..a8e496515 100644
--- a/dvc/fs/base.py
+++ b/dvc/fs/base.py
@@ -305,8 +305,8 @@ class FileSystem:
     ):
         return self.fs.walk(path, topdown=topdown, **kwargs)
 
-    def getsize(self, path: AnyFSPath) -> Optional[int]:
-        return self.info(path).get("size")
+    def size(self, path: AnyFSPath) -> Optional[int]:
+        return self.fs.size(path)
 
     # pylint: enable=unused-argument
 
diff --git a/dvc/fs/utils.py b/dvc/fs/utils.py
index 9f33884e7..c19055b0a 100644
--- a/dvc/fs/utils.py
+++ b/dvc/fs/utils.py
@@ -47,7 +47,7 @@ def _copy(
         return from_fs.download_file(from_path, to_path)
 
     with from_fs.open(from_path, mode="rb") as fobj:
-        size = from_fs.getsize(from_path)
+        size = from_fs.size(from_path)
         return to_fs.upload(fobj, to_path, total=size)
 
 
diff --git a/dvc/utils/__init__.py b/dvc/utils/__init__.py
index 05f1ec9a3..81157ed99 100644
--- a/dvc/utils/__init__.py
+++ b/dvc/utils/__init__.py
@@ -48,7 +48,7 @@ def file_md5(fname, fs):
 
     hash_md5 = hashlib.md5()
     binary = not istextfile(fname, fs=fs)
-    size = fs.getsize(fname) or 0
+    size = fs.size(fname) or 0
     no_progress_bar = True
     if size >= LARGE_FILE_SIZE:
         no_progress_bar = False
diff --git a/tests/func/test_fs.py b/tests/func/test_fs.py
index 663e563d3..6f2adf85c 100644
--- a/tests/func/test_fs.py
+++ b/tests/func/test_fs.py
@@ -206,8 +206,8 @@ def test_fs_getsize(dvc, cloud):
     cls, config, path = get_cloud_fs(dvc, **cloud.config)
     fs = cls(**config)
 
-    assert fs.getsize(fs.path.join(path, "baz")) == 7
-    assert fs.getsize(fs.path.join(path, "data", "foo")) == 3
+    assert fs.size(fs.path.join(path, "baz")) == 7
+    assert fs.size(fs.path.join(path, "data", "foo")) == 3
 
 
 def test_fs_upload_fobj(dvc, tmp_dir, cloud):
@@ -265,7 +265,7 @@ def test_download_callback(tmp_dir, dvc, cloud, local_cloud):
 
     (tmp_dir / "to_upload").write_text("foo")
     fs.upload((tmp_dir / "to_upload").fs_path, (cloud / "foo").fs_path)
-    expected_size = fs.getsize((cloud / "foo").fs_path)
+    expected_size = fs.size((cloud / "foo").fs_path)
 
     callback = fsspec.Callback()
     fs.download_file(