IP Subnet Calculator
Calculate subnets based on your requirements

Variable Length Subnet Masking (VLSM) allows you to create subnets of different sizes based on host requirements.

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VLSM Results
Subnet allocation based on your requirements
Subnet NameNetwork AddressSubnet MaskPrefixFirst UsableLast UsableBroadcastUsable HostsTotal IPsWasted IPsDeltaBorrowed Bits
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Calculation History
Previous calculations
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Powers of 2 Reference
PowerValue
201
212
224
238
2416
2532
2664
27128
28256
29512
2101,024
Byte Values Reference
BinaryDecimal
10000000128
11000000192
11100000224
11110000240
11111000248
11111100252
11111110254
11111111255