IPv4 Subnet Calculator
Enter an IP with a CIDR prefix or a subnet mask to see its network, broadcast, host range, and host count. You can also split the network into smaller subnets.
private IP (RFC 1918)172.16.14.0/24
network172.16.14.0/24
broadcast172.16.14.255
first host172.16.14.1
last host172.16.14.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classB
ipcalc 172.16.14.0/24
address10101100.00010000.00001110.00000000
subnet mask11111111.11111111.11111111.00000000
network10101100.00010000.00001110.00000000
broadcast10101100.00010000.00001110.11111111
green = network part, grey = host part
hex0xac100e00
decimal2886733312
reverse dns0.14.16.172.in-addr.arpa
ipv4-mapped::ffff:ac10:e00
/24 split into /30 · 64 subnets
close ×| # | network | host range | broadcast |
|---|---|---|---|
| 1 | 172.16.14.0/30 | 172.16.14.1 – 172.16.14.2 | 172.16.14.3 |
| 2 | 172.16.14.4/30 | 172.16.14.5 – 172.16.14.6 | 172.16.14.7 |
| 3 | 172.16.14.8/30 | 172.16.14.9 – 172.16.14.10 | 172.16.14.11 |
| 4 | 172.16.14.12/30 | 172.16.14.13 – 172.16.14.14 | 172.16.14.15 |
| 5 | 172.16.14.16/30 | 172.16.14.17 – 172.16.14.18 | 172.16.14.19 |
| 6 | 172.16.14.20/30 | 172.16.14.21 – 172.16.14.22 | 172.16.14.23 |
| 7 | 172.16.14.24/30 | 172.16.14.25 – 172.16.14.26 | 172.16.14.27 |
| 8 | 172.16.14.28/30 | 172.16.14.29 – 172.16.14.30 | 172.16.14.31 |
| 9 | 172.16.14.32/30 | 172.16.14.33 – 172.16.14.34 | 172.16.14.35 |
| 10 | 172.16.14.36/30 | 172.16.14.37 – 172.16.14.38 | 172.16.14.39 |
| 11 | 172.16.14.40/30 | 172.16.14.41 – 172.16.14.42 | 172.16.14.43 |
| 12 | 172.16.14.44/30 | 172.16.14.45 – 172.16.14.46 | 172.16.14.47 |
| 13 | 172.16.14.48/30 | 172.16.14.49 – 172.16.14.50 | 172.16.14.51 |
| 14 | 172.16.14.52/30 | 172.16.14.53 – 172.16.14.54 | 172.16.14.55 |
| 15 | 172.16.14.56/30 | 172.16.14.57 – 172.16.14.58 | 172.16.14.59 |
| 16 | 172.16.14.60/30 | 172.16.14.61 – 172.16.14.62 | 172.16.14.63 |
| 17 | 172.16.14.64/30 | 172.16.14.65 – 172.16.14.66 | 172.16.14.67 |
| 18 | 172.16.14.68/30 | 172.16.14.69 – 172.16.14.70 | 172.16.14.71 |
| 19 | 172.16.14.72/30 | 172.16.14.73 – 172.16.14.74 | 172.16.14.75 |
| 20 | 172.16.14.76/30 | 172.16.14.77 – 172.16.14.78 | 172.16.14.79 |
| 21 | 172.16.14.80/30 | 172.16.14.81 – 172.16.14.82 | 172.16.14.83 |
| 22 | 172.16.14.84/30 | 172.16.14.85 – 172.16.14.86 | 172.16.14.87 |
| 23 | 172.16.14.88/30 | 172.16.14.89 – 172.16.14.90 | 172.16.14.91 |
| 24 | 172.16.14.92/30 | 172.16.14.93 – 172.16.14.94 | 172.16.14.95 |
| 25 | 172.16.14.96/30 | 172.16.14.97 – 172.16.14.98 | 172.16.14.99 |
| 26 | 172.16.14.100/30 | 172.16.14.101 – 172.16.14.102 | 172.16.14.103 |
| 27 | 172.16.14.104/30 | 172.16.14.105 – 172.16.14.106 | 172.16.14.107 |
| 28 | 172.16.14.108/30 | 172.16.14.109 – 172.16.14.110 | 172.16.14.111 |
| 29 | 172.16.14.112/30 | 172.16.14.113 – 172.16.14.114 | 172.16.14.115 |
| 30 | 172.16.14.116/30 | 172.16.14.117 – 172.16.14.118 | 172.16.14.119 |
| 31 | 172.16.14.120/30 | 172.16.14.121 – 172.16.14.122 | 172.16.14.123 |
| 32 | 172.16.14.124/30 | 172.16.14.125 – 172.16.14.126 | 172.16.14.127 |
| 33 | 172.16.14.128/30 | 172.16.14.129 – 172.16.14.130 | 172.16.14.131 |
| 34 | 172.16.14.132/30 | 172.16.14.133 – 172.16.14.134 | 172.16.14.135 |
| 35 | 172.16.14.136/30 | 172.16.14.137 – 172.16.14.138 | 172.16.14.139 |
| 36 | 172.16.14.140/30 | 172.16.14.141 – 172.16.14.142 | 172.16.14.143 |
| 37 | 172.16.14.144/30 | 172.16.14.145 – 172.16.14.146 | 172.16.14.147 |
| 38 | 172.16.14.148/30 | 172.16.14.149 – 172.16.14.150 | 172.16.14.151 |
| 39 | 172.16.14.152/30 | 172.16.14.153 – 172.16.14.154 | 172.16.14.155 |
| 40 | 172.16.14.156/30 | 172.16.14.157 – 172.16.14.158 | 172.16.14.159 |
| 41 | 172.16.14.160/30 | 172.16.14.161 – 172.16.14.162 | 172.16.14.163 |
| 42 | 172.16.14.164/30 | 172.16.14.165 – 172.16.14.166 | 172.16.14.167 |
| 43 | 172.16.14.168/30 | 172.16.14.169 – 172.16.14.170 | 172.16.14.171 |
| 44 | 172.16.14.172/30 | 172.16.14.173 – 172.16.14.174 | 172.16.14.175 |
| 45 | 172.16.14.176/30 | 172.16.14.177 – 172.16.14.178 | 172.16.14.179 |
| 46 | 172.16.14.180/30 | 172.16.14.181 – 172.16.14.182 | 172.16.14.183 |
| 47 | 172.16.14.184/30 | 172.16.14.185 – 172.16.14.186 | 172.16.14.187 |
| 48 | 172.16.14.188/30 | 172.16.14.189 – 172.16.14.190 | 172.16.14.191 |
| 49 | 172.16.14.192/30 | 172.16.14.193 – 172.16.14.194 | 172.16.14.195 |
| 50 | 172.16.14.196/30 | 172.16.14.197 – 172.16.14.198 | 172.16.14.199 |
| 51 | 172.16.14.200/30 | 172.16.14.201 – 172.16.14.202 | 172.16.14.203 |
| 52 | 172.16.14.204/30 | 172.16.14.205 – 172.16.14.206 | 172.16.14.207 |
| 53 | 172.16.14.208/30 | 172.16.14.209 – 172.16.14.210 | 172.16.14.211 |
| 54 | 172.16.14.212/30 | 172.16.14.213 – 172.16.14.214 | 172.16.14.215 |
| 55 | 172.16.14.216/30 | 172.16.14.217 – 172.16.14.218 | 172.16.14.219 |
| 56 | 172.16.14.220/30 | 172.16.14.221 – 172.16.14.222 | 172.16.14.223 |
| 57 | 172.16.14.224/30 | 172.16.14.225 – 172.16.14.226 | 172.16.14.227 |
| 58 | 172.16.14.228/30 | 172.16.14.229 – 172.16.14.230 | 172.16.14.231 |
| 59 | 172.16.14.232/30 | 172.16.14.233 – 172.16.14.234 | 172.16.14.235 |
| 60 | 172.16.14.236/30 | 172.16.14.237 – 172.16.14.238 | 172.16.14.239 |
| 61 | 172.16.14.240/30 | 172.16.14.241 – 172.16.14.242 | 172.16.14.243 |
| 62 | 172.16.14.244/30 | 172.16.14.245 – 172.16.14.246 | 172.16.14.247 |
| 63 | 172.16.14.248/30 | 172.16.14.249 – 172.16.14.250 | 172.16.14.251 |
| 64 | 172.16.14.252/30 | 172.16.14.253 – 172.16.14.254 | 172.16.14.255 |
01 / table
IPv4 CIDR prefix table.
Click a prefix longer than your network to split it into subnets.
| prefix | subnet mask | addresses | hosts | in your /24 |
|---|---|---|---|---|
| /0 | 0.0.0.0 | 4,294,967,296 | 4,294,967,294 | - |
| /1 | 128.0.0.0 | 2,147,483,648 | 2,147,483,646 | - |
| /2 | 192.0.0.0 | 1,073,741,824 | 1,073,741,822 | - |
| /3 | 224.0.0.0 | 536,870,912 | 536,870,910 | - |
| /4 | 240.0.0.0 | 268,435,456 | 268,435,454 | - |
| /5 | 248.0.0.0 | 134,217,728 | 134,217,726 | - |
| /6 | 252.0.0.0 | 67,108,864 | 67,108,862 | - |
| /7 | 254.0.0.0 | 33,554,432 | 33,554,430 | - |
| /8 | 255.0.0.0 | 16,777,216 | 16,777,214 | - |
| /9 | 255.128.0.0 | 8,388,608 | 8,388,606 | - |
| /10 | 255.192.0.0 | 4,194,304 | 4,194,302 | - |
| /11 | 255.224.0.0 | 2,097,152 | 2,097,150 | - |
| /12 | 255.240.0.0 | 1,048,576 | 1,048,574 | - |
| /13 | 255.248.0.0 | 524,288 | 524,286 | - |
| /14 | 255.252.0.0 | 262,144 | 262,142 | - |
| /15 | 255.254.0.0 | 131,072 | 131,070 | - |
| /16 | 255.255.0.0 | 65,536 | 65,534 | - |
| /17 | 255.255.128.0 | 32,768 | 32,766 | - |
| /18 | 255.255.192.0 | 16,384 | 16,382 | - |
| /19 | 255.255.224.0 | 8,192 | 8,190 | - |
| /20 | 255.255.240.0 | 4,096 | 4,094 | - |
| /21 | 255.255.248.0 | 2,048 | 2,046 | - |
| /22 | 255.255.252.0 | 1,024 | 1,022 | - |
| /23 | 255.255.254.0 | 512 | 510 | - |
| /24 | 255.255.255.0 | 256 | 254 | 1 |
| /25 | 255.255.255.128 | 128 | 126 | 2 split → |
| /26 | 255.255.255.192 | 64 | 62 | 4 split → |
| /27 | 255.255.255.224 | 32 | 30 | 8 split → |
| /28 | 255.255.255.240 | 16 | 14 | 16 split → |
| /29 | 255.255.255.248 | 8 | 6 | 32 split → |
| /30 | 255.255.255.252 | 4 | 2 | 64 split → |
| /31 | 255.255.255.254 | 2 | 2 | 128 split → |
| /32 | 255.255.255.255 | 1 | 1 | 256 split → |
02 / faq
About this calculator.
How do I use this subnet calculator?
▼
Type an IP address followed by a prefix, like 192.168.1.10/24, or by a subnet mask, like 192.168.1.10 255.255.255.0. Without a prefix it uses /24. Click a row in the table to split the network into smaller subnets.
Why are usable hosts always 2 fewer?
▼
The first address in a subnet is the network address and the last is the broadcast address, so neither can go to a device. The exceptions are /31 (point-to-point links, RFC 3021) and /32 (a single address), which use every address.
Can I use it from a terminal?
▼
Yes. curl 'ipku.in/en/tools/ipv4-subnet-calculator?q=192.168.1.10/24' returns the result as plain text.