What matters
WordPress Header Image dimensions at a glance
WordPress header images at 1920×600 work for many themes' hero sections. The wide format accommodates text overlays while spanning full-width layouts.
The header is often the first visual on your site. A properly sized header sets the tone and prevents the stretched or cropped look that undermines trust.
Wrong dimensions create distortion or unexpected cropping. Mobile views may crop significantly more than desktop, hiding important content.