File Size Converter
Convert file-size units with an explicit decimal (1000) or binary (1024) base.
File helpersFile Size & Format Helpers
Convert file-size units and look up common MIME types and extensions. These references do not upload or inspect your file contents.
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File Size ConverterConvert file-size units with an explicit decimal (1000) or binary (1024) base.Bytes to KBB → KB. Convert file-size units with an explicit decimal (1000) or binary (1024) base.KB to MBKB → MB. Convert file-size units with an explicit decimal (1000) or binary (1024) base.MB to GBMB → GB. Convert file-size units with an explicit decimal (1000) or binary (1024) base.
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Bytes to KB
B → KB. Convert file-size units with an explicit decimal (1000) or binary (1024) base.
File helpersKB to MB
KB → MB. Convert file-size units with an explicit decimal (1000) or binary (1024) base.
File helpersMB to GB
MB → GB. Convert file-size units with an explicit decimal (1000) or binary (1024) base.
File helpersMIME Type Lookup
Look up common file extensions associated with a MIME type in a built-in reference table.
File helpersFile Extension Lookup
Find common MIME types and format names for a file extension. Renaming a file does not convert it.
File helpersGood to know
Supported formats & limits
Decimal units use powers of 1000; binary units use powers of 1024 and are labeled KiB, MiB and GiB. Results are rounded to 12 significant digits. This changes units, not the file itself.
Are my files uploaded?
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