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Free Data Size Converter Online
Convert between bytes, KB/MB/GB/TB/PB/EB with decimal/binary accuracy.
System
Decimal (1000-based, MB)
Input
1 MB
| Unit | Value | Action |
|---|---|---|
| Bytes (B) | 1000000.0000 | |
| Kilobytes (KB) | 1000.0000 | |
| Megabytes (MB) | 1.0000 | |
| Gigabytes (GB) | 1.0000e-3 | |
| Terabytes (TB) | 1.0000e-6 | |
| Petabytes (PB) | 1.0000e-9 | |
| Exabytes (EB) | 1.0000e-12 |
Why this tool?
- Supports decimal (KB/MB) and binary (KiB/MiB) standards.
- Precision control for engineering-grade results.
- Quick presets for common scenarios (1GB, 10GB, 1TB).
- Copy-ready outputs with proper unit suffixes.
Tips
- Use Decimal for storage vendor specs; Binary for OS/file systems.
- Increase precision to compare service limits; lower it for readability.
- Copy any row to paste into tickets or docs.
Privacy: All processing is done client-side; nothing you type or generate is sent to any server.
Monetization: We show light, non-intrusive ads to keep these tools free for everyone.
How It Works
- Enter a number and pick the starting unit
- Choose decimal (KB/MB) or binary (KiB/MiB) system
- Adjust precision if needed
- Copy any converted value with correct suffix
When to Use This Tool
- ✓Checking storage vendor specs vs OS file sizes
- ✓Sizing downloads, backups, or database exports
- ✓Comparing cloud storage quotas and usage
- ✓Communicating clear sizes in docs or tickets
Use Cases & Examples
- •Convert 500GB disk spec to GiB seen in OS
- •Estimate how many 4MB photos fit in 10GB
- •Compare backup set sizes between MB and MiB
- •Document data transfer limits precisely
Frequently Asked Questions
What is the difference between MB and MiB?
MB uses decimal (1 MB = 1,000,000 bytes). MiB uses binary (1 MiB = 1,048,576 bytes). OS tools often show binary; vendors often quote decimal.
How do I choose decimal or binary?
Use decimal for storage vendor specs and marketing numbers. Use binary for OS/file system reporting, engineering limits, and most developer tools.
Can I copy results easily?
Yes, every row has a copy button with the correct unit suffix for quick pasting into tickets or docs.