File Size Calculator
Convert between different file size units (B, KB, MB, GB, TB).
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How to Use File Size Calculator
Step 1
Enter your data or upload your file
Step 2
Configure settings if needed
Step 3
Get your results instantly
Lightning Fast
Instant results without any waiting.
100% Secure
All processing in your browser.
Completely Free
No registration, no fees, no limits.
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Frequently Asked Questions
What is 1 GB in MB?▼
1 GB is equal to 1,024 MB in binary (IEC) or 1,000 MB in decimal (SI).