Formats
JPG, PNG
Google Forms header image size
As of July 2, 2026, the Google Forms header image is 1600 by 400 pixels (4:1). Below is the full spec, then a resizer already set to that size so you can export a perfectly fitted image.
Google FormsHeader imageConvention, not published by Google FormsLast verified July 2, 2026
Recommended size1600x400 px
Aspect ratio4:1
Safe zone: Forms crops the top and bottom to a band; keep text in the vertical middle and away from the far edges.
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About the Google Forms header image size
A Google Forms header image works best at 1600 by 400 pixels, a 4:1 ratio. Google Forms crops whatever you upload into a wide banner and pulls its accent colours from your image, and your form title sits over the lower portion. Keep any text you add to the image in the vertical middle and clear of the far edges so the crop does not clip it and the title does not collide with it. A simple branded graphic reads better than a detailed photo at this letterbox shape.
Quick tips
- 011600 by 400 (4:1) fills the header cleanly without heavy cropping.
- 02The form title overlays the lower part; keep your own text higher.
- 03Forms samples the image to set the theme colour, so pick a strong accent.
Frequently asked questions
What size is a Google Forms header image?
1600 by 400 pixels (4:1) works cleanly. Forms crops uploads to a wide banner and pulls the theme colour from the image, so keep text centred vertically.
What aspect ratio is the Google Forms header image?
The Google Forms header image uses a 4:1 aspect ratio at 1600 by 400 pixels.
Related sizes
How this spec was checked
Platform sizes change without notice, so this entry records what it was verified against rather than stating a number and hoping it holds. Last checked July 2, 2026.
ConventionGoogle Forms does not publish a size for this surface. The number below is the one the industry has standardised on, which is a useful answer but not a claim about Google Forms.
Google publishes no pixel spec for a Forms header image. 1600 by 400 is the size that works cleanly against the banner crop Forms applies, arrived at by testing rather than by documentation.
Every spec on this site carries one of those two labels. See the cheat sheet for the full split, and the changelog for every correction with the date it happened.
See all Google Forms sizes, the full cheat sheet, or grab this spec from the JSON API.