BMP to ICO Converter

Convert BMP to ICO online at Convertig.com. Free, fast, and secure image converter—no software needed. Upload your BMP file and get high-quality instantly.

100 MB maximum file size and upto 5 files.

Make sure you have uploaded valid files otherwise conversion will not be correct

300+ formats supported

We support more than 25600 different conversions between more than 300 different file formats. More than any other converter.

Fast and easy

Just drop your files on the page, choose an output format and click "Convert" button. Wait a little for the process to complete.

How to use BMP to ICO Converter?

  1. Click the “Choose Files” button to select your files (up to 20 files at a time)
  2. Click on the “Convert” button to start the conversion
  3. When the status change to Done” click the “Download” button

BMP to ICO Converter FAQs

The primary purpose of converting a BMP to an ICO file is to create an icon for use in Microsoft Windows. ICO is the standard format for application icons, desktop shortcuts, and folder icons. It's also commonly used for website favicons, which are the small images you see in your browser tabs. It’s a functional file, not one meant for general photo viewing.

Since icon files must be square (with dimensions like 16x16, 32x32, etc.), Convertio will automatically adjust your non-square image. The tool will typically add padding (like black or white bars) to the sides or top and bottom to make the canvas square before converting. This ensures your final .ico file meets the format's requirements without distorting your original image.

Yes, it will. A key feature of the ICO format is that a single file acts as a container for multiple image sizes. When you convert your BMP, Convertio automatically generates several standard icon dimensions and bundles them all into your one ICO file. This allows Windows or a web browser to select the best possible version for display, ensuring it looks sharp whether it's on your desktop or in a small details list.

For the best results, you should start with a simple and bold BMP image. A complex photograph with fine details will become unrecognizable when shrunk down to a tiny icon size. A clear logo or a high-contrast graphic with distinct shapes will remain sharp and legible even when displayed as a small 16x16 pixel icon on a taskbar or browser tab.

No, you cannot create a transparent background when converting from a standard BMP file. The BMP format itself doesn't support transparency, so there is no transparency information for the converter to use. Your final ICO file will have the same solid-colored background as your original source image. To create an icon with a transparent background, you would need to start with a format that supports it, such as PNG.