Printable Binary Table Chart
This one-page letter PDF is for anyone converting IP subnets by hand. It shows mask octet values with the matching binary, block size, and network bits in the octet. Rows include common values like 0, 128, and 192, and the block size follows the rule 256 minus the mask octet.
Free printable · PDF
- 1 page
- US Letter — choose “Fit to page” for A4
- PDF, 53 KB
Free for personal, family and classroom use.
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Use it as a quick reference while working through subnet masks, CIDR notation, or network calculations. Find the mask octet, read across to the binary and block size, then match the network bits in that octet. Keep it nearby when checking subnet boundaries or converting between decimal and binary.
Good for
- Convert mask octets to binary fast
- Check subnet block sizes quickly
- Review network bits in each octet
Tip: Print it on one page and keep it with your subnetting notes for quick checks.
5 files · PDF, XLSX, DOCX
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This sheet plus 4 more in one download, with the editable Excel and Word files. Printable subnetting cheat sheet (CIDR, masks, wildcards, hosts), a binary and powers-of-two table, subnetting practice worksheets with answers and an IP address plan workbook.
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