A Guide to The Best Image Sizes for Websites

September 8, 2023

A Guide to The Best Image Sizes for Websites

Selecting the right images for your website is crucial in shaping your brand image and connecting with your audience. It goes beyond what you display; there are key factors to consider for effective image use. Ensure that you are using the best image sizes for websites when uploading to your website.

When dealing with web images, finding the balance between file size and resolution is essential. Higher resolution makes images look better, but it also increases file size. Large files can slow down your site, impacting user experience and search engine ranking. On the other hand, enlarging low-quality images can result in a blurry and pixelated appearance.

Understanding Different Image File Types:

  • JPG/JPEG Files: These are ideal for most images and photos. They are relatively small and support up to 16.7 million colors.
  • PNG Files: Used for images requiring a transparent background, they are larger than JPEGs but retain more information and are lossless.
  • GIF Images: Suitable for low-resolution files, often used for simple logos, icons, or symbols. Not recommended for high-resolution photos due to their color limitations.

What’s File Size?

The unit hierarchy from smallest to largest is as follows:

  1. Kilobyte (KB): The smallest unit commonly used for measuring digital file sizes.
  2. Megabyte (MB): Larger than a kilobyte, often used for larger files and images.
  3. Gigabyte (GB): The largest unit in this context, representing a significant amount of data.

File size is the number of bytes a file occupies on your computer, measured in kilobytes (KB), megabytes (MB), and gigabytes (GB). A 15MB photo is large, while a 125KB file is more reasonable. Large file sizes can slow down your website, indicating oversized images or excessively high resolutions.

What’s Image Size?

Image size is the measurement of height and width, typically in pixels. It’s crucial to upload images in the correct size set for display on your website. Using the wrong size can result in blurry or oversized images, affecting your site’s speed. That’s why it’s important to know the best image sizes to use for websites.

What’s Image Resolution?

Resolution, measured in dots per inch (dpi), determines image quality. Most monitors display images at 72dpi, making higher resolutions unnecessary for web use. “Save for web” options in design programs ensure a low, web-friendly resolution.

Golden Rules for Web Images:

  1. Large images or full-screen backgrounds should be between 500KB and 1MB.
  2. Most small web graphics should be 300KB or less.
  3. If possible, always “save for web” or save JPGs with a quality between 70% and 80%.
  4. It’s challenging to successfully enlarge a small image, so start with the correct size.
  5. Never use a resolution higher than 72dpi.

Optimizing your website’s visual appeal starts with choosing the right image sizes. If you’re looking for a hassle-free solution, our website templates offer professionally designed layouts that seamlessly integrate with various image sizes. Each of our website templates come with the plugin Smush installed, the image compressing tool, taking the stress out of re-sizing your images.

Explore our diverse range of Website Templates here to find a design that complements your content and ensures optimal image display.

For a tailored approach that meets the unique needs of your brand, consider our Bespoke Website Design service. Our team of experts will work closely with you to create a custom website that not only accommodates the best image sizes but also aligns perfectly with your brand identity. Learn more about our Bespoke Website Design here and elevate your online presence with a website that stands out.

In conclusion, these image re-sizing tips aim to help you use images effectively on your website. Remember, the content of your images is paramount, so strive for quality to positively reflect on your brand. At Brandority, every WordPress website we sell is offered with us adding your content and images, and we ensure that each image is appropriately sized before upload. Browse our WordPress Website Templates which can be adapted for any service based business!

Already have a website and need some assistance with your SEO? Check our our SEO Starter Package, which helps small business with their SEO and ensures they are on their way to ranking 1st page on Google.


This post may include affiliate links, including Amazon Associates, where we earn from qualifying purchases.

We are Brandority!

We specialise in designer website templates and branding kits empowering small businesses to gain brand authority. From visually stunning websites to cohesive branding assets, we craft the tools you need to establish brand authority effortlessly.

Ready to Get Your Dream Website?

Explore our collection of professionally crafted website templates, designed to make your online presence not just a reality, but a standout success.

Get Our Business SEO Audit Worksheet

Unlock the potential of your online presence with our Business SEO Audit Worksheet, a comprehensive tool designed to assess and enhance your website’s search engine optimization for maximum visibility and success.

Get your Brand Persona Guide

Download the free brand persona guide to get started on your journey.

Brand Persona Guide - Free Download