diff --git a/app/helpers/articles_helper.rb b/app/helpers/articles_helper.rb
index 0a2edd34..116b41ae 100644
--- a/app/helpers/articles_helper.rb
+++ b/app/helpers/articles_helper.rb
@@ -112,7 +112,7 @@ def format_unit_factors(factors)
 
     factor_str_arr
       .compact
-      .join("#{Prawn::Text::NBSP}x#{Prawn::Text::NBSP}")
+      .join("#{Prawn::Text::NBSP}×#{Prawn::Text::NBSP}")
   end
 
   def format_unit_factor(factor, with_unit)
@@ -126,7 +126,7 @@ def format_unit_factor(factor, with_unit)
     unit_label = is_si_conversible ? unit_data[:symbol] : unit_data[:name]
     return unit_label if factor[:quantity] == 1
 
-    multiplier_str = 'x' unless is_si_conversible
+    multiplier_str = '×' unless is_si_conversible
 
     [quantity_str, multiplier_str, unit_label]
       .compact
diff --git a/spec/helpers/articles_helper_spec.rb b/spec/helpers/articles_helper_spec.rb
index fc6d232b..e7a39125 100644
--- a/spec/helpers/articles_helper_spec.rb
+++ b/spec/helpers/articles_helper_spec.rb
@@ -49,7 +49,7 @@ def test_with_article_data(supplier_order_unit: nil, group_order_unit: nil, rati
           ratios: [[20.148, 'KGM'], [20, 'XBO'], [10, 'LTR']],
           group_order_unit: 'XBO'
         )
-        expect(result).to eq('Crate (20 x 0.5 l)')
+        expect(result).to eq('Crate (20 × 0.5 l)')
       end
 
       it 'formats ratio from group order unit to first SI ratio if group order unit equals or defaults to supplier order unit' do
@@ -58,7 +58,7 @@ def test_with_article_data(supplier_order_unit: nil, group_order_unit: nil, rati
           ratios: [[100, 'XPC'], [400, 'XPK'], [4000, 'X6H'], [200_000, 'GRM']],
           group_order_unit: 'XPK'
         )
-        expect(result).to eq('Pallet (400 x 500 g)')
+        expect(result).to eq('Pallet (400 × 500 g)')
       end
 
       it 'formats ratio from group order unit to first SI ratio' do