How to Convert Photo Size MB to KB Online and Offline with Ease

It has been a problem with uploading large files and is still a problem. As we know, smaller media sizes enable websites to load pictures better and faster. That is why pictures with MB size want to convert to KB size. The same goes when your device is almost full of storage; hence you want to convert your pictures to smaller file sizes. On that note, we will show you offline and online photo converters from MB to KB. Check out the recommended programs below.

IMage MB to KB Converter

Part 1. Top 5 IMage MB to KB Converter Tools

Now, let us get through these programs in detail by reviewing them individually. You will find desktop and online tools here, so you can choose whichever method suits you best. Moreover, instructional guides are associated with the programs to help you navigate each tool. To cut the chase, continue reading below.

1. Aiseesoft Image Compressor Online

Aiseesoft Image Compressor Online is a great free image resize tool that allows you to reduce image file size up to 80%. This program can shrink multiple image formats, like JPEG, JPG, GIG, PNG, SVG, and many more. Moreover, it facilitates single and batch compressions. That means you can upload and shrink a bunch of photo's file sizes at a swift speed. Therefore, in case you are dealing with many pictures, this feature is beneficial. Not to mention, it comes with an AI technology helping to speed up the process.

Aiseesoft Image Compressor Online Key Features:

Below is a detailed process on how to convert MB to KB of JPG, JPEG, or PNG.

Step 1:
To get started, visit the program's official site using your favorite browser. Type the program's link on your address bar and enter the home page. Next, click the Add Images button, and your file folder will launch right after. From here, select and double-click on your target photo to compress.
Add Images to Compress
Step 2:
After uploading photos, the tool will automatically resize them within seconds. The existing and new file sizes of the pictures will be shown here.
Convert MB to KB
Step 3:
When your photo is resized, save and download it on your computer. You can download it individually by clicking the Download button associated with the photo. Or save in bulk by hitting the Download All button.
Save Compressed Photo

2. Image Resizer

If you wish to learn how to convert MB to KB, you should master Image Resizer. This web-based program allows you to process photos from the web page directly. Besides reducing the file size of a picture, you can also use the program to flip, rotate, and crop pictures. One of the highlights about this program is that you can resize the image by dimensions and percentage. Over and above, you may set your target file size in KB and save it as a JPG or PNG image file. On the other hand, follow the procedure below to learn to convert MB to KB pictures.

Step 1:
Open a browser you are commonly using on your computer and go to the official site of the program.
Step 2:
From this page, click the Select Image button and choose the photo that is MB in file size. Also, you may drop the image on the upload area of the tool to upload.
Select Image With MB Size
Step 3:
Before compressing the photo, you may edit the photo's orientation or crop it. Now, scroll down the page and set the value for dimensions or percentages according to your preferences. Then, edit the set value for the target file size in KB and the format. Hit the Resize Image Now button.
Adjust Property Values
Step 4:
On the next window, you should see the properties of the photos, including their existing and new file size. Finally, click the Download Image button to save the edited photo.
Download Image File

3. JPEG Optimizer

The simple MB to KB picture converter online you should consider using is JPEG Optimizer. Using this program, you can set the compression level from 0-99. In addition, you may resize the photo width in pixels. However, you are only allowed to process a photo at a time. Nevertheless, it is an effective program to optimize photos. Meanwhile, here is a simplified tutorial on how to use it.

Step 1:
Browse the program's website to enter its main page. Then, click the Choose File button from the main page.
Step 2:
Next, put a checkmark on the Compress Image button and the Resize Photo to access it. After that, set the value according to your desired outcome.
Step 3:
When satisfied with the values, hit the Optimize Photo and operate this photo size converter from MB to KB.
Optimize Photo
Step 4:
To save the resized photo, right-click on the edited photo and choose Save Image As. Once done, select a file destination where you wish to save it.
Save Resized Photo

4. JPEG Compressor

Now, when you are looking for a free desktop tool, look no further than JPEG Compressor. The program is jam-packed with various options for compression and editing photos. Moreover, it offers a detail quality equalizer that is perfect for photos with large file sizes. There are five bands that will allow you to tune the compression level to the image details. Hence, you can convert MB to KB for JPG, JPEG, and PNG. Here is how to operate this app.

Step 1:
Get this MB to KB image converter software free download from its official website. Install and launch it on your computer.
Step 2:
Next, hit the File button and select Open. After that, you should see your photos from your file folder. Now, double-click on the photo you wish to convert to KB size.
Add Photo
Step 3:
When the photo is uploaded, the program will immediately reduce the photo's file size. At the bottom of the interface, you can adjust the Detail Quality Equalizer to convert from large to small file sizes.
Edit Compression Level
Step 4:
Finally, save the edited photo by clicking the File menu. Select Save As and select a file folder where you want the photo to be saved.
Save Edited Photo

5. ApowerCompress

Last but not least, the photo size converter from MB to KB you should consider using is ApowerCompress. As a matter of fact, this program enables you to compress not only pictures but also video and PDF files offline. It accepts all popular and new image formats. Furthermore, it comes with three compression types: Size, Normal, and Quality. Additionally, you can edit the photo's size, change the dimension, and crop pictures. On the other hand, here is how to use this tool.

Step 1:
First, go to the tool's official website with your preferred browser. Then, download and install the program. Run it on your computer afterward.
Step 2:
Now, drag the photo to the program's interface to add an image file. You may also click the Add folder button if you wish to load multiple photos simultaneously.
Import a Photo
Step 3:
Once done adding photos, adjust the compression strength using the slider and select an output format.
Adjust Compression Rate
Step 4:
Once you are delighted with the settings, hit the Compress button at the bottom right corner of the interface.
Compress Photos

Part 2. What is the Image MB to KB Converter Tool

If you are still unsure which program you will use to convert MB to KB, here is a comparison chart you may refer to.

Tools Size Reduction Percentage Platform Batch Compression
Aiseesoft Image Compressor Online 60-80% Web Yes
Image Resizer 40-60% Web Yes
JPEG Optimizer 50-80% Web No
JPEG Compressor 5-30% Windows No
ApowerCompress 50-80% Windows Yes

Part 3. FAQs About Converting Images MB to KB Size

How to convert MB to KB in Photoshop?

With Photoshop, you can compress a photo 68-80%. Simply go to Image > Image Resize. From the dialog box, change the dimensions and save it. Moreover, it is important to save your photo in JPG format.

How many KB is there in 10 MB?

Since 1 MB is equivalent to 1000 KB, 10 MB is equivalent to 10000. You multiply 10 to 1000, making the result 10000.

Can I resize a photo without losing its quality?

Yes. Numerous programs are available to help you reduce the file size while maintaining the quality. Remember not to compress too much because it will result in a bad-looking photo.


The article offers five excellent tools to help you convert MB to KB photos online and offline. Hence, if you wish your pictures on the website faster and better, these tools will help. Also, you can free up some space on your device. Optimize your photos today and enjoy a responsive website and a better performance on your device.

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