What’s the difference between a bit and a byte?

A bit (b) is the smallest unit (0 or 1). A byte (B) equals 8 bits. Remember b ≠ B: 8 Mb ≈ 1 MB.

What’s the difference between KB/MB/GB and KiB/MiB/GiB?

Decimal units use powers of 1000 (1 KB = 1000 bytes). Binary units use powers of 1024 (1 KiB = 1024 bytes). Many operating systems and memory specs use binary; many manufacturers use decimal.

Why does a 1 TB drive show about 931 GiB on my computer?

Drive makers use decimal (1 TB = 1,000,000,000,000 bytes) while many systems display binary (1 TiB = 1,099,511,627,776 bytes). 1 TB decimal ≈ 0.91 TiB, which appears as ~931 GiB.

Does this converter work offline and keep my data private?

Yes. Everything runs locally in your browser. After the first visit, assets can be cached and used offline. No uploads, no tracking.

Can I convert between Mbps and MB/s here?

This tool converts storage size units. For speed conversions (Mbps ↔ MB/s), use a data rate converter. As a rule of thumb: divide by 8 to go from Mb/s to MB/s.

How accurate are the results?

We use exact conversion constants (1000 and 1024) with smart rounding for readability.

Digital Storage Unit Converter

Effortlessly convert digital storage units bits, bytes, KB/MB/GB/TB/PB and binary KiB/MiB/GiB/TiB/PiB. Instant, accurate, 100% private, and works offline.

Fast, Free, Private Digital Storage Unit Converter (Offline)

Convert data size instantly bits, bytes, KB, KiB, MB, MiB, GB, GiB, TB, TiB, PB, and PiB. 100% client side, lifetime free, unlimited use. No uploads, no sign ups, truly private.

Top, fast, best in class, and unlimited. Your information is 100% confidential and secure.

Why people love this storage converter

Offline & secure

Runs entirely in your browser. Your values never leave your device.

Unlimited & free forever

No accounts, no limits convert as much as you want.

Fast & simple

Pick units, type a value, get results instantly with clear precision.

Works everywhere

Modern browsers on Windows, Mac, Linux, and mobile devices.

Decimal & binary aware

Correctly handles 1000 based (KB, MB) and 1024 based (KiB, MiB) units.

Accurate results

Exact conversion factors with smart rounding for readability.

Popular uses worldwide

Cloud & storage planning

Estimate storage needs: GB ↔ TB ↔ PB across clouds and devices.

DevOps & backups

Convert sizes for images, archives, database snapshots, and logs.

Networking

Avoid b/B confusion when estimating transfers (Mb ↔ MB).

Video & photography

Plan media storage and exports: MiB ↔ MB, GiB ↔ GB.

Education

Learn data units and the 1000 vs 1024 difference interactively.

Reporting & research

Keep sizes consistent across datasets and publications.

How to convert digital storage units

Select your “From” unit (e.g., GB).
Enter a value (e.g., 250).
Select your “To” unit (e.g., GiB or TB).
See instant results and the 1 unit summary below.
Use “Reset” to start again.

Tip: Edit either side both fields update intelligently.

Supported units

Bit (bit)

Byte (B)

Kilobit (kbit)

Kibibit (Kibit)

Kilobyte (kB)

Kibibyte (KiB)

Megabit (Mbit)

Mebibit (Mibit)

Megabyte (MB)

Mebibyte (MiB)

Gigabit (Gbit)

Gibibit (Gibit)

Gigabyte (GB)

Gibibyte (GiB)

Terabit (Tbit)

Tebibit (Tibit)

Terabyte (TB)

Tebibyte (TiB)

Petabit (Pbit)

Pebibit (Pibit)

Petabyte (PB)

Pebibyte (PiB)

Best practices

Know the difference between bits (b) and bytes (B).
Confirm whether you need decimal (KB, MB, GB) or binary (KiB, MiB, GiB) units.
Manufacturers often use decimal; OS tools often show binary expect display differences.
Round only at the end if you’ll do further calculations.
Keep original values for auditing and records.

Frequently Asked Questions

Is it private and secure?

Yes. Everything runs locally in your browser no uploads, no tracking, no servers.

Is it really free and unlimited?

Yes. Lifetime free, unlimited conversions, and no sign ups.

Which units are supported?

bits, bytes, KB/KiB, MB/MiB, GB/GiB, TB/TiB, PB/PiB.

Does it work offline?

Yes. Your browser can cache assets after the first visit and run offline.

What’s KB vs KiB?

KB is decimal (1000 bytes). KiB is binary (1024 bytes). The converter handles both correctly.

Can I convert between Mbps and MB/s?

This tool converts storage size. For speed (Mbps ↔ MB/s), divide or multiply by 8, or use a speed converter.

Global availability (GEO)

Built for users worldwide: USA, UK, Canada, Australia, India, EU (Germany, France, Spain, Italy, Netherlands), Middle East (UAE, Saudi Arabia), Asia (Singapore, Malaysia, Philippines, Indonesia, Japan, South Korea), Africa (Nigeria, South Africa, Egypt), and Latin America (Brazil, Mexico, Argentina).

Also searched as: digital storage converter, data size converter, file size converter, convert bytes to KB, KB to MB, MB to GB, GB to TB, bits to bytes, MiB to MB, GiB to GB, TB to TiB, PB to PiB, storage calculator, file size calculator.
Multilingual: conversor de tamaño de archivo (ES), convertisseur d’unité de stockage (FR), Speichereinheiten umrechnen (DE), convertitore di unità di archiviazione (IT), conversor de armazenamento (PT), конвертер размеров файлов (RU), データ容量変換 (JA), 存储单位换算 (ZH), 저장 용량 변환기 (KO), dijital depolama birimi çevirici (TR), محول وحدات التخزين الرقمية (AR), डिजिटल स्टोरेज यूनिट कनवर्टर (HI).

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