File Size Converter - KB, MB, GB, TB
Convert file sizes between Bytes, KB, MB, GB, and TB instantly. Perfect for understanding download sizes, planning storage, and managing backups.
Conversion Results
| Unit | Value |
|---|
Using decimal units: 1 KB = 1,000 bytes, 1 MB = 1,000,000 bytes
Key Features
5 Unit Types
Convert between Bytes, KB, MB, GB, and TB
Instant Calculation
Results appear immediately in your browser
Storage Planning
Plan downloads, backups, and cloud storage needs
100% Private
No data uploaded, everything runs locally
How to Use the File Size Converter
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1
Enter a file size value
Type the size you want to convert (e.g., 500) and select its current unit (e.g., MB).
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2
Click "Convert"
The calculator processes your input instantly.
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3
View all equivalent sizes
See your file size expressed in Bytes, KB, MB, GB, and TB.
Common File Size Reference
Frequently Asked Questions
Why does a 1 TB hard drive show less space on my computer? ▼
Hard drive manufacturers use decimal units (1 TB = 1,000,000,000,000 bytes), but Windows uses binary units (1 TiB = 1,099,511,627,776 bytes). A "1 TB" drive shows as about 931 GB in Windows. This isn't missing space—it's just different measurement systems.
What's the difference between decimal (1,000) and binary (1,024) units? ▼
Decimal units (KB, MB, GB) use multiples of 1,000—this is what storage manufacturers use. Binary units (KiB, MiB, GiB) use multiples of 1,024—this is what operating systems traditionally use. This tool uses decimal units for simplicity and consistency with how storage is marketed.
How accurate are these file size conversions? ▼
The conversions are mathematically precise using decimal units (1 KB = 1,000 bytes, 1 MB = 1,000,000 bytes). If you need binary conversions, multiply by 1,024 instead of 1,000 at each step.