How Many KB in a MB?
There are 1,000 KB in a MB (decimal/SI standard) or 1,024 KiB in a MiB (binary standard). Most software uses binary, but storage makers use decimal.
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Formula
Answer: There are 1,000 KB in a MB (decimal/SI standard) or 1,024 KiB in a MiB (binary standard). Most software uses binary, but storage makers use decimal.
Example
Question: How many KB in a MB? Answer: There are 1,000 KB in a MB (decimal/SI standard) or 1,024 KiB in a MiB (binary standard). Most software uses binary, but storage makers use decimal.
How to Use
- Read the direct answer at the top of the page
- Check the conversion table for common values
- Use the related converter for custom values
- Browse the FAQ for common follow-up questions
Frequently Asked Questions
Why does Windows show different file sizes?
Windows uses binary (1 KB = 1,024 bytes) but labels it as KB. Mac uses decimal (1 KB = 1,000 bytes). This causes apparent size differences.
How many bytes in a KB?
There are 1,000 bytes in 1 KB (decimal) or 1,024 bytes in 1 KiB (binary).
How many KB in a GB?
There are 1,000,000 KB in 1 GB (decimal) or 1,048,576 KiB in 1 GiB (binary).