diff --git a/Tests/LibWeb/Layout/expected/block-and-inline/max-width-percentage-100-border-box.txt b/Tests/LibWeb/Layout/expected/block-and-inline/max-width-percentage-100-border-box.txt
new file mode 100644
index 0000000000..0c6a27a5c9
--- /dev/null
+++ b/Tests/LibWeb/Layout/expected/block-and-inline/max-width-percentage-100-border-box.txt
@@ -0,0 +1,8 @@
+Viewport <#document> at (0,0) content-size 800x600 children: not-inline
+  BlockContainer <html> at (1,1) content-size 798x0 [BFC] children: not-inline
+    BlockContainer <body> at (10,10) content-size 93.59375x19.46875 positioned [BFC] children: not-inline
+      BlockContainer <nav> at (11,11) content-size 91.59375x17.46875 children: inline
+        line 0 width: 91.59375, height: 17.46875, bottom: 17.46875, baseline: 13.53125
+          frag 0 from TextNode start: 0, length: 10, rect: [11,11 91.59375x17.46875]
+            "border box"
+        TextNode <#text>
diff --git a/Tests/LibWeb/Layout/input/block-and-inline/max-width-percentage-100-border-box.html b/Tests/LibWeb/Layout/input/block-and-inline/max-width-percentage-100-border-box.html
new file mode 100644
index 0000000000..d74d8908b5
--- /dev/null
+++ b/Tests/LibWeb/Layout/input/block-and-inline/max-width-percentage-100-border-box.html
@@ -0,0 +1,8 @@
+<!doctype html><style>
+* { border: 1px solid black; font-family: 'SerenitySans'; }
+body { position: absolute; }
+nav {
+    max-width: 100%;
+    box-sizing: border-box;
+}
+</style><body><nav>border box
\ No newline at end of file
diff --git a/Userland/Libraries/LibWeb/Layout/FormattingContext.cpp b/Userland/Libraries/LibWeb/Layout/FormattingContext.cpp
index e699d0aba2..873d5d819b 100644
--- a/Userland/Libraries/LibWeb/Layout/FormattingContext.cpp
+++ b/Userland/Libraries/LibWeb/Layout/FormattingContext.cpp
@@ -1291,10 +1291,10 @@ CSS::Length FormattingContext::calculate_inner_width(Layout::Box const& box, Ava
 
     auto& computed_values = box.computed_values();
     if (computed_values.box_sizing() == CSS::BoxSizing::BorderBox) {
-        auto const padding_left = computed_values.padding().left().resolved(box, width_of_containing_block_as_length_for_resolve).resolved(box);
-        auto const padding_right = computed_values.padding().right().resolved(box, width_of_containing_block_as_length_for_resolve).resolved(box);
+        auto const padding_left = computed_values.padding().left().resolved(box, width_of_containing_block_as_length_for_resolve);
+        auto const padding_right = computed_values.padding().right().resolved(box, width_of_containing_block_as_length_for_resolve);
 
-        auto inner_width = width.resolved(box, width_of_containing_block_as_length_for_resolve).resolved(box).to_px(box)
+        auto inner_width = width.resolved(box, width_of_containing_block_as_length_for_resolve).to_px(box)
             - computed_values.border_left().width
             - padding_left.to_px(box)
             - computed_values.border_right().width
@@ -1317,10 +1317,10 @@ CSS::Length FormattingContext::calculate_inner_height(Layout::Box const& box, Av
     if (computed_values.box_sizing() == CSS::BoxSizing::BorderBox) {
         auto width_of_containing_block = CSS::Length::make_px(containing_block_width_for(box));
 
-        auto const padding_top = computed_values.padding().top().resolved(box, width_of_containing_block).resolved(box);
-        auto const padding_bottom = computed_values.padding().bottom().resolved(box, width_of_containing_block).resolved(box);
+        auto const padding_top = computed_values.padding().top().resolved(box, width_of_containing_block);
+        auto const padding_bottom = computed_values.padding().bottom().resolved(box, width_of_containing_block);
 
-        auto inner_height = height.resolved(box, height_of_containing_block_as_length_for_resolve).resolved(box).to_px(box)
+        auto inner_height = height.resolved(box, height_of_containing_block_as_length_for_resolve).to_px(box)
             - computed_values.border_top().width
             - padding_top.to_px(box)
             - computed_values.border_bottom().width
