Convert digital storage across decimal and binary systems
This tool supports bits, bytes, words, sectors, pages, decimal prefixes, and binary prefixes for more practical storage analysis.
Sample storage conversions
| Example Input | Target Unit | Expected Output | Why It Matters |
|---|---|---|---|
| 1024 Byte (B) | Kibibyte (KiB) | 1 KiB | Useful for operating system and memory sizing. |
| 1 Gigabyte (GB) | Megabyte (MB) | 1000 MB | Useful for storage vendor specifications. |
| 1 Gibibyte (GiB) | Megabyte (MB) | 1,073.741824 MB | Useful when comparing marketed and actual capacity. |
| 4096 Byte (B) | Page (4 KiB) | 1 Page | Useful for memory pages and low-level systems work. |
| 8 Bit (b) | Byte (B) | 1 Byte | Useful for networking and bit-to-byte translation. |
How the storage conversion works
Step 1: Convert the source value into bytes.
Bytes = Input Value × Source Unit Factor
Step 2: Convert bytes into the selected target unit.
Target Value = Bytes ÷ Target Unit Factor
Decimal units: KB, MB, GB, TB, PB, and EB use powers of 1000.
Binary units: KiB, MiB, GiB, TiB, PiB, and EiB use powers of 1024.
Example: 2 GB to MiB = (2 × 1,000,000,000) ÷ 1,048,576 = 1907.348633 MiB.
Simple steps for accurate conversion
- Enter the storage amount you want to convert.
- Select the source unit from the first dropdown.
- Select the target unit from the second dropdown.
- Choose decimal precision and preferred number notation.
- Select a graph scale for easier visual comparison.
- Enable the all-unit table if you want wider analysis.
- Press Convert Storage Units to see the result above the form.
- Download CSV or PDF files for the current result or history.
Storage unit converter questions
1. What is the difference between MB and MiB?
MB uses decimal scaling, so 1 MB equals 1,000,000 bytes. MiB uses binary scaling, so 1 MiB equals 1,048,576 bytes. The difference matters when comparing marketed drive capacity with operating system reporting.
2. Why do storage devices seem smaller after formatting?
Manufacturers often use decimal units like GB, while operating systems may display binary-based values like GiB. Formatting also consumes some space for file system structures, partitions, metadata, and recovery areas.
3. When should I use bits instead of bytes?
Bits are common in networking, signaling, and communication speeds. Bytes are common in files, operating systems, storage devices, memory sizes, and software downloads. This converter supports both to reduce confusion.
4. What are sectors and pages in this calculator?
A sector is treated as 512 bytes, which is common in disk storage concepts. A page is treated as 4 KiB, which is common in memory management and virtual memory systems.
5. Why is logarithmic graph scale useful here?
Storage values can change drastically across units. A log scale makes very large and very small values easier to compare on one graph, especially when moving between bits, bytes, and terabyte-class units.
6. Can this calculator handle very large storage sizes?
Yes, it supports decimal and binary units up to exabyte-level entries. Very large numbers may display better in scientific notation, which you can enable from the number display setting.
7. Why does 1 GB not equal 1 GiB?
1 GB equals 1,000,000,000 bytes because it uses base 1000. 1 GiB equals 1,073,741,824 bytes because it uses base 1024. They are related but not identical units.
8. What does the conversion history section do?
The history section stores recent conversions during your session. It helps you compare multiple storage scenarios quickly and export past results as CSV or PDF for reporting or review.