- Private: files never leave your device
- Free, no sign-up
- Fast, works offline once loaded
How to use MB to KB Converter
- Type the size and choose its unit.
- Choose decimal (1000) or binary (1024).
- Read the converted values for every unit.
About this tool
Upload limits are often given in KB or MB, while your files may be shown in another unit. This converter shows any file size in bytes, KB, MB, GB and TB at once. By default it uses 1 MB = 1024 KB, which is what most operating systems and upload forms use. Switch to decimal if you need 1 MB = 1000 KB.
Need to actually get a file under a limit? Use the Resize Image to KB tools.
Frequently asked questions
How many KB are in 1 MB?
1024 KB in binary units, which most systems use, or 1000 KB in decimal units.
How do I convert MB to KB?
Multiply by 1024 (or 1000).
How do I make an image smaller in KB?
Use the Image Compressor or the Resize Image to KB tools.
Is MB to KB Converter really free?
Yes. You can use MB to KB Converter as often as you like with no sign-up, no watermark and no daily limit.
Are my images uploaded to a server?
No. MB to KB Converter runs entirely in your web browser, so your files stay on your own device and are never sent to DEWANARO or anyone else.