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CRC-16/KERMIT Calculator

Calculate CRC-16/KERMIT

Calculate CRC-16/KERMIT from text. KERMIT uses the 0x1021 polynomial with reflected input and output.

Reflection is the important difference from CRC-16/XMODEM. The same text gives different values under the two profiles.

Output width

CRC-16/KERMIT produces a 16-bit result. The calculator pads the hexadecimal output to 4 characters so leading zeroes are visible.

Frequently Asked Questions

It returns a 16-bit checksum, usually written as 4 hexadecimal characters.

Paste text into the input pane. Batch mode calculates one CRC-16/KERMIT value per line.

CRC-16/KERMIT uses polynomial 0x1021, initial value 0x0000, reflected input and output, and final XOR 0x0000.

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