diff --git a/layouts/_partials/human_file_size.html b/layouts/_partials/human_file_size.html
new file mode 100644
index 0000000..bf1c0d9
--- /dev/null
+++ b/layouts/_partials/human_file_size.html
@@ -0,0 +1,7 @@
+{{/* Call this with a resource's content e.g., partial "human_file_size" .Content */}}
+{{- $bytes := len . -}}
+{{- $kb := div $bytes 1024 -}}
+{{- $mb := div $kb 1024 -}}
+{{- if ge $mb 1 -}}{{- $mb -}} MB
+{{- else if ge $kb 1 -}}{{- $kb -}} KB
+{{- else -}}{{- $bytes -}} B{{- end -}}