diff --git a/.changeset/smart-insects-tease.md b/.changeset/smart-insects-tease.md
new file mode 100644
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+---
+'@xyflow/react': patch
+'@xyflow/svelte': patch
+---
+
+Calculate viewport dimensions in fitView instead of using stored dimensions. Fixes [#4652](https://github.com/xyflow/xyflow/issues/4652)