Fletcher Checksum Calculator

Online Fletcher checksum calculator (16-bit and 32-bit). Fast and reliable error detection algorithm for data integrity verification.

Input Format:
Fletcher Version:
Fletcher Result (Hex):
Fletcher Result (Dec):
Fletcher Result (Oct):
Fletcher Result (Bin):

Fletcher Checksum Knowledge

Fletcher checksum is an error detection algorithm that generates a position-dependent checksum. It is the predecessor of Adler32 and provides better error detection than simple checksums.

Features

  • Two versions: Fletcher-16 and Fletcher-32
  • Better error detection than simple checksums
  • Position-dependent checksum
  • Predecessor of Adler32 algorithm
  • Efficient implementation possible

Applications

  • Network protocols
  • Data integrity verification
  • File transfer protocols
  • Digital communication systems
  • Real-time data verification

Security Recommendations

  • Not suitable for cryptographic purposes
  • Consider using CRC for better error detection
  • Use Fletcher-32 for better reliability
  • Combine with other methods for critical data
The tools on this site are strictly prohibited for illegal purposes. We do not bear any losses and responsibilities caused by using the tools.
Friend Links
© 2025 calctools.online All Rights Reserved