Byte Unit Converter
Convert data sizes across decimal (KB, MB) and binary (KiB, MiB) units at once
Enter a single value and this converter lays out the equivalent across every decimal unit from bytes (B) up to exabytes (EB), based on powers of 1000, and every binary unit from kibibytes (KiB) up to exbibytes (EiB), based on powers of 1024. It's handy for developers and IT folks comparing file sizes, advertised drive capacity, and network bandwidth without second-guessing which standard applies. Everything is calculated in your browser and nothing is sent to a server.
도구를 불러오는 중…
🔒 Everything runs 100% in your browser. Your files and input are never uploaded to any server.
How to use
- Enter the value you want to convert.
- Choose the source unit from either the decimal set (KB, MB, GB, etc.) or the binary set (KiB, MiB, GiB, etc.).
- Use the decimal/binary tabs to view the conversion table for the unit system you want.
- Click the copy button next to any unit to grab the value.
FAQ
- What's the difference between KB and KiB?
- A KB (kilobyte) is a decimal unit that scales by 1,000 under the SI standard, while a KiB (kibibyte) is a binary unit that scales by 1,024 under the IEC standard. macOS typically reports sizes in decimal and Windows in binary, which is why the same file can appear to have a different size on each.
- Are the values I enter saved on a server?
- No. Every conversion is calculated instantly in your browser — nothing is transmitted or stored.
- Can it handle extremely large or small values?
- Yes. Values below 1e-6 or above 1e18 automatically switch to scientific notation so you can still read the exact figure.