1500 MB = 1430.5115 MiB All units B 1500000000 KB 1500000 MB 1500 GB 1.5 TB 0.0015 PB 0 KiB 1464843.75 MiB 1430.5115 GiB 1.397 TiB 0.0014 PiB 0 Humanized (decimal) 1.5 GB
About Data Size Converter — Bytes to KB, MB, GB, MiB/GiB
This data size converter translates a value across every common storage unit at once — bytes, KB, MB, GB, TB, PB on the decimal (SI, ×1000) ladder, and KiB, MiB, GiB, TiB, PiB on the binary (IEC, ×1024) ladder — and shows both side by side so the difference is never ambiguous.
The decimal-versus-binary gap is where most "missing space" confusion comes from: a drive sold as 1 TB holds 1,000,000,000,000 bytes (decimal), but your operating system may report it as ~0.91 TiB (binary), and 1 MB is not the same as 1 MiB. Converting bytes to MB or comparing MiB vs MB by hand is error-prone — this tool does it exactly.
Everything runs locally in your browser. No size you enter is uploaded, so it works completely offline.
Features
- Convert across decimal units (KB/MB/GB/TB/PB, ×1000) and binary units (KiB/MiB/GiB/TiB/PiB, ×1024)
- See all units at once, plus a humanized form like "1.5 MB"
- Cross-base conversions (e.g. GiB → MB) computed exactly
- Toggle decimal vs binary for the humanized output; fully offline
How to use
- Type a numeric value into the input pane.
- Pick the From unit and the To unit from the selectors.
- Toggle Decimal (×1000) or Binary (×1024) for the humanized result.
- Read the headline conversion and the full all-units table, then copy the result.
Frequently asked questions
What is the difference between MB and MiB?
1 MB (megabyte) is 1,000,000 bytes using the decimal SI standard, while 1 MiB (mebibyte) is 1,048,576 bytes using the binary IEC standard (2^20). They differ by about 4.9%, and the gap grows with each larger unit — about 7.4% at the GB/GiB level.
Why does my hard drive show less space than advertised?
Drive makers count capacity in decimal units (1 TB = 1,000,000,000,000 bytes), but many operating systems report it in binary units. A "1 TB" drive is about 0.91 TiB, so the OS appears to show less — the bytes are all there, just measured on a different ladder.
Is 1 GB equal to 1024 MB?
Not on the decimal ladder: 1 GB = 1000 MB exactly. The 1024 multiplier belongs to the binary ladder, where 1 GiB = 1024 MiB. Mixing the two is the usual source of off-by-a-few-percent errors.
Does this converter send my data anywhere?
No. All conversions run in your browser with plain arithmetic. Nothing you type leaves your device, so it works with the network unplugged.
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Everything runs locally in your browser — your input is never uploaded.