Bytes Converter
Convert bytes to KB, MB, GB, TB and vice versa.
Convert bytes to KB, MB, GB, TB and vice versa.
This free Bytes Converter from KX Toolkit is part of our all-in-one online toolkit. It runs entirely in your browser, so your data never leaves your device for client-side operations. 100% free, forever - no paywall, no credit card, no trial.
How to use the Bytes Converter
- Pick the unit you have and the unit you want.
- Enter the value.
- Read the converted value - most tools update as you type.
- Use the swap button to reverse the direction if needed.
What you can do with the Bytes Converter
- Convert recipe ingredients between metric and imperial.
- Translate engineering specs across systems.
- Check shipping weights and dimensions before ordering.
- Quick travel conversions for distance, speed and currency.
Why use KX Toolkit's Bytes Converter
- Browser-based: Works on Windows, macOS, Linux, iOS and Android - no install, no extension.
- Privacy-first: Client-side tools never upload your data; server-side tools delete files right after processing.
- Mobile-friendly: Full feature parity on phones and tablets - not a stripped-down view.
- Fast: Optimised for instant feedback. No artificial waiting screens, no email-gated downloads.
- One hub for everything: 300+ tools across SEO, text, image, PDF, code, color, calculators and more - skip switching between sites.
Tips for the best results
For very large or very small numbers, use the scientific-notation option - it avoids floating-point rounding errors.
Related Unit Converter Tools
If you find this tool useful, explore the full Unit Converter Tools collection or browse our complete tool directory. KX Toolkit is built for marketers, developers, designers, students and anyone who needs a quick utility without signing up for yet another SaaS.
What is the difference between KB and KiB?
KB (kilobyte) is decimal and equals 1,000 bytes, while KiB (kibibyte) is binary and equals 1,024 bytes. Storage manufacturers usually advertise capacity using decimal units, but operating systems like Windows still report sizes using binary units. That is why a 1 TB drive shows up as roughly 931 GiB inside your computer. The converter supports both standards so you can compare them side by side.
How do I convert bytes to megabytes?
Divide the number of bytes by 1,000,000 for decimal megabytes (MB) or by 1,048,576 for binary mebibytes (MiB). For example, 5,000,000 bytes equals 5 MB or roughly 4.77 MiB. The converter handles both conventions automatically, so you only need to pick which standard your context uses, typically decimal for storage marketing and binary for memory and file system reporting.
Why does my hard drive show less space than advertised?
Drive manufacturers count 1 GB as 1,000,000,000 bytes, but Windows counts 1 GB (really GiB) as 1,073,741,824 bytes. The hardware is the same, only the labelling differs. A 500 GB drive contains 500 billion bytes, which Windows displays as about 465 GB. Some space is also reserved for the file system, formatting overhead, and recovery partitions, which reduces the usable capacity further.
What is the largest unit the converter supports?
The tool supports up to yottabytes (YB) and yobibytes (YiB), which are 10^24 bytes and 2^80 bytes respectively. In practice the largest units in everyday use are terabytes for consumer drives and petabytes for data centres. Exabytes and beyond appear mostly in research papers and global internet traffic estimates rather than on real hardware.
How many bytes are in a typical file?
A plain text email is around 2 KB, a high-resolution photo is 3 to 8 MB, an MP3 song is roughly 4 to 10 MB, a Blu-ray movie is 25 to 50 GB, and a 4K movie can exceed 100 GB. Use the converter to translate between these orders of magnitude when planning storage, bandwidth, or backup capacity.
Should I use bits or bytes for network speeds?
Network speeds are measured in bits per second (Mbps, Gbps), while file sizes are measured in bytes (MB, GB). One byte equals 8 bits, so a 100 Mbps connection delivers about 12.5 MB per second in theory. Real throughput is lower due to protocol overhead. Use the data transfer rate converter for bandwidth and the bytes converter for stored file sizes.
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