diff --git a/docs/content/s3.md b/docs/content/s3.md
index a630f467e..b5f73ebbf 100644
--- a/docs/content/s3.md
+++ b/docs/content/s3.md
@@ -685,9 +685,9 @@ The chunk sizes used in the multipart upload are specified by
 `--s3-chunk-size` and the number of chunks uploaded concurrently is
 specified by `--s3-upload-concurrency`.
 
-Multipart uploads will use `--transfers` * `--s3-upload-concurrency` *
-`--s3-chunk-size` extra memory.  Single part uploads to not use extra
-memory.
+Multipart uploads will use extra memory equal to: `--transfers` ×
+`--s3-upload-concurrency` × `--s3-chunk-size`. Single part uploads do not
+use extra memory.
 
 Single part transfers can be faster than multipart transfers or slower
 depending on your latency from S3 - the more latency, the more likely