This should do the trick.
http://codex.wordpress.org/Function_Reference/add_image_size
just create your own image size you want to best fit your website.
you could then use this plugin to regenerate all your thumbnails.
Related Posts:
- How To Delete Desired Image Sizes From wp-content/uploads?
- How can I upload video, generate thumbnail and convert to different formats?
- Thumbnails of same size with different crop
- How to Replace YouTube Videos with a “Click to Play” Thumbnail?
- image_resize in wp3.5 change to wp_get_image_editor and wont work
- Why is wp_get_attachment_image_src returning wrong dimensions? [duplicate]
- Stop wordpress from creating multiple size images
- Completly disable and remove Thumbnails?
- Store thumbnails and uploads in different directories?
- Getting specific image thumbnail urls of attached images
- wp_get_attachment_image() not working when trying to add width and height attributes
- WordPress 3.5 – Add custom image size
- Thumbnail is corrupt but image is good
- Thumbnails are not cropped even after selecting “Crop thumbnail to exact dimensions”
- Various thumbnail sizes for WordPress/jquery masonry gallery
- Detect if image file is a thumbnail
- Setting default thumbnails size & creating multiple thumbnail sizes
- Add_image_size not cropping
- Media Gallery Upload Thumbnail Compression is Changing Image Hue
- Custom image sizes only for thumbnails
- How to disable multiple thumbnail generation?
- Use ‘medium’ size with catch_that_image() function
- How can I get I get the thumbnail custom size dimensions?
- prevent wordpress from creating thumbnails of an image
- ‘Thumbnail’ and ‘Medium’ Image sizes are different than expected
- How to link to featured image to media file URL
- Open Image Thumbnail in a new page, while clicking on the link
- Thumbnails Not generated when sharing on WhatsApp
- Thumbnail position + size
- Why are some thumbnails on their side – but correct when I go to edit image? [closed]
- Is there a way to avoid using add_image_size? Best way to manage images
- Single-post preview repeats thumbnails in Jupiter Recent Posts widget
- How to fit image to Thumbnail canvas size?
- How to have the thumbnail cropping tool working
- Regenerate thumbnails for images that are not in the media library
- How can i make this in the_post_thumbnail?
- Custom image size mixes width and height in output
- Why are thumbnails not being generated for PDF files?
- Image Sizes/Thumbnails not generating on local install Ampps
- Thumbnail generating and posting
- Timthumb not working with WordPress 4.0
- the_post_thumbnail returns full sized image, how to debug?
- Disabling image thumbnails and automatic regeneration
- add youtube thumbnail in index and single.php add video
- Stop ‘alt’ from being added to the_post_thumbnail
- Exclude Multiple Post Thumbnails From Post Attachments
- Custom thumbnail crop offsets
- How can i place square Feature Image withing the body of post aligned top left or top right in wordpress?
- Can’t add thumbnail theme support
- Error 500 in loop to create posts and thumbnails
- How to reduce unnecessary thumbnail creation?
- thumbnail crop not working
- Best way to manage theme images
- how to place ELSE on if function on multipostthumbnails? [closed]
- add_image_size cropping changes on Mobile devices
- external url for post thumbnail and title
- Generate thumbnails like 500px.com
- Serving resized images on a responsive site without making 2x copies
- Thumbnails resized and not cropped in the center
- How to delete post thumbnails in index page? (twenty fourteen theme)
- get_intermediate_image_sizes() returning different values depending on is_admin()
- Display thumbnail of child, parent and ancestor using featured thumbnails
- Retrieve image from Open Graph of an external URL and set as featured image
- Media Library Image Sizes in Bones theme (add_image_size)
- Check if custom thumnail size image has been cropped to the correct dimensions
- Can’t edit thumbnails
- get_the_term_list & url
- Thumbnails from video posts not working after upgrading to WP 3.4
- Thumbnail informations (meta)
- How can I add a featured thumbnail into a div via a data-image-src?
- Thumbnails loading forever
- How to crop thumbnail size, from both width and height sides
- Getting post-thumbnail hentry category-error – How can I fix
- Make thumbnails in woocommerce replace the main image instead of opening fancybox
- How to create thumbnail of different files?
- WP 3.4 has missing photo data
- Image Quality Thumbnail Compression in WordPress?
- Show Post Thumbnail In Custom Post From Other CPT
- combine Code 1 with Code 2
- How check that there is post thumbnail feature image or not on wordpress?
- Force WordPress to strip/remove EXIF/IPTC metadata when resizing thumbnails
- Sidebar Thumbs Squished?
- Overriding of the template for the Attachment “thumbnails” in the Media Grid isn’t working
- “Medium” size image displayed instead of “thumbnail” in only one post, other posts are fine
- Filter for post_thumbnail: link to small src and add data-attribute [duplicate]
- Else/If Statement to Display Photo Descriptions
- Echo list attachment size in post
- Setting a default thumbnail url if no thumbnail
- how can I call a posts featured image in any template?
- How to get thumbnail from post attachment in this loop
- Custom field outside the loop and inside an array
- The URL of images on my website changed after being set as featured image
- SVG not displaying in Media Tab in Backend
- Change thumbnail size for Media Library
- Why image Thumbnail url is not displaying with custom size?
- How to tell woocommerce slider to use thumbnails
- Thumbnails have stopped generating correctly
- Pictures won’t display in media library and also won’t show preview when selected
- PHP-Code inside Href-Tag
- Display woocommerce product_cat child terms with thumbnails