ip
ipku.in

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.

$ ipcalc
Try:192.168.1.10/2410.0.0.0/8172.16.5.4/20203.0.113.9/29
IPv6 calculator →
private IP (RFC 1918)10.78.62.0/24
network10.78.62.0/24
broadcast10.78.62.255
first host10.78.62.1
last host10.78.62.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.78.62.0/24
address00001010.01001110.00111110.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.01001110.00111110.00000000
broadcast00001010.01001110.00111110.11111111
green = network part, grey = host part
hex0x0a4e3e00
decimal172899840
reverse dns0.62.78.10.in-addr.arpa
ipv4-mapped::ffff:a4e:3e00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.78.62.0/3110.78.62.0 – 10.78.62.110.78.62.1
210.78.62.2/3110.78.62.2 – 10.78.62.310.78.62.3
310.78.62.4/3110.78.62.4 – 10.78.62.510.78.62.5
410.78.62.6/3110.78.62.6 – 10.78.62.710.78.62.7
510.78.62.8/3110.78.62.8 – 10.78.62.910.78.62.9
610.78.62.10/3110.78.62.10 – 10.78.62.1110.78.62.11
710.78.62.12/3110.78.62.12 – 10.78.62.1310.78.62.13
810.78.62.14/3110.78.62.14 – 10.78.62.1510.78.62.15
910.78.62.16/3110.78.62.16 – 10.78.62.1710.78.62.17
1010.78.62.18/3110.78.62.18 – 10.78.62.1910.78.62.19
1110.78.62.20/3110.78.62.20 – 10.78.62.2110.78.62.21
1210.78.62.22/3110.78.62.22 – 10.78.62.2310.78.62.23
1310.78.62.24/3110.78.62.24 – 10.78.62.2510.78.62.25
1410.78.62.26/3110.78.62.26 – 10.78.62.2710.78.62.27
1510.78.62.28/3110.78.62.28 – 10.78.62.2910.78.62.29
1610.78.62.30/3110.78.62.30 – 10.78.62.3110.78.62.31
1710.78.62.32/3110.78.62.32 – 10.78.62.3310.78.62.33
1810.78.62.34/3110.78.62.34 – 10.78.62.3510.78.62.35
1910.78.62.36/3110.78.62.36 – 10.78.62.3710.78.62.37
2010.78.62.38/3110.78.62.38 – 10.78.62.3910.78.62.39
2110.78.62.40/3110.78.62.40 – 10.78.62.4110.78.62.41
2210.78.62.42/3110.78.62.42 – 10.78.62.4310.78.62.43
2310.78.62.44/3110.78.62.44 – 10.78.62.4510.78.62.45
2410.78.62.46/3110.78.62.46 – 10.78.62.4710.78.62.47
2510.78.62.48/3110.78.62.48 – 10.78.62.4910.78.62.49
2610.78.62.50/3110.78.62.50 – 10.78.62.5110.78.62.51
2710.78.62.52/3110.78.62.52 – 10.78.62.5310.78.62.53
2810.78.62.54/3110.78.62.54 – 10.78.62.5510.78.62.55
2910.78.62.56/3110.78.62.56 – 10.78.62.5710.78.62.57
3010.78.62.58/3110.78.62.58 – 10.78.62.5910.78.62.59
3110.78.62.60/3110.78.62.60 – 10.78.62.6110.78.62.61
3210.78.62.62/3110.78.62.62 – 10.78.62.6310.78.62.63
3310.78.62.64/3110.78.62.64 – 10.78.62.6510.78.62.65
3410.78.62.66/3110.78.62.66 – 10.78.62.6710.78.62.67
3510.78.62.68/3110.78.62.68 – 10.78.62.6910.78.62.69
3610.78.62.70/3110.78.62.70 – 10.78.62.7110.78.62.71
3710.78.62.72/3110.78.62.72 – 10.78.62.7310.78.62.73
3810.78.62.74/3110.78.62.74 – 10.78.62.7510.78.62.75
3910.78.62.76/3110.78.62.76 – 10.78.62.7710.78.62.77
4010.78.62.78/3110.78.62.78 – 10.78.62.7910.78.62.79
4110.78.62.80/3110.78.62.80 – 10.78.62.8110.78.62.81
4210.78.62.82/3110.78.62.82 – 10.78.62.8310.78.62.83
4310.78.62.84/3110.78.62.84 – 10.78.62.8510.78.62.85
4410.78.62.86/3110.78.62.86 – 10.78.62.8710.78.62.87
4510.78.62.88/3110.78.62.88 – 10.78.62.8910.78.62.89
4610.78.62.90/3110.78.62.90 – 10.78.62.9110.78.62.91
4710.78.62.92/3110.78.62.92 – 10.78.62.9310.78.62.93
4810.78.62.94/3110.78.62.94 – 10.78.62.9510.78.62.95
4910.78.62.96/3110.78.62.96 – 10.78.62.9710.78.62.97
5010.78.62.98/3110.78.62.98 – 10.78.62.9910.78.62.99
5110.78.62.100/3110.78.62.100 – 10.78.62.10110.78.62.101
5210.78.62.102/3110.78.62.102 – 10.78.62.10310.78.62.103
5310.78.62.104/3110.78.62.104 – 10.78.62.10510.78.62.105
5410.78.62.106/3110.78.62.106 – 10.78.62.10710.78.62.107
5510.78.62.108/3110.78.62.108 – 10.78.62.10910.78.62.109
5610.78.62.110/3110.78.62.110 – 10.78.62.11110.78.62.111
5710.78.62.112/3110.78.62.112 – 10.78.62.11310.78.62.113
5810.78.62.114/3110.78.62.114 – 10.78.62.11510.78.62.115
5910.78.62.116/3110.78.62.116 – 10.78.62.11710.78.62.117
6010.78.62.118/3110.78.62.118 – 10.78.62.11910.78.62.119
6110.78.62.120/3110.78.62.120 – 10.78.62.12110.78.62.121
6210.78.62.122/3110.78.62.122 – 10.78.62.12310.78.62.123
6310.78.62.124/3110.78.62.124 – 10.78.62.12510.78.62.125
6410.78.62.126/3110.78.62.126 – 10.78.62.12710.78.62.127
6510.78.62.128/3110.78.62.128 – 10.78.62.12910.78.62.129
6610.78.62.130/3110.78.62.130 – 10.78.62.13110.78.62.131
6710.78.62.132/3110.78.62.132 – 10.78.62.13310.78.62.133
6810.78.62.134/3110.78.62.134 – 10.78.62.13510.78.62.135
6910.78.62.136/3110.78.62.136 – 10.78.62.13710.78.62.137
7010.78.62.138/3110.78.62.138 – 10.78.62.13910.78.62.139
7110.78.62.140/3110.78.62.140 – 10.78.62.14110.78.62.141
7210.78.62.142/3110.78.62.142 – 10.78.62.14310.78.62.143
7310.78.62.144/3110.78.62.144 – 10.78.62.14510.78.62.145
7410.78.62.146/3110.78.62.146 – 10.78.62.14710.78.62.147
7510.78.62.148/3110.78.62.148 – 10.78.62.14910.78.62.149
7610.78.62.150/3110.78.62.150 – 10.78.62.15110.78.62.151
7710.78.62.152/3110.78.62.152 – 10.78.62.15310.78.62.153
7810.78.62.154/3110.78.62.154 – 10.78.62.15510.78.62.155
7910.78.62.156/3110.78.62.156 – 10.78.62.15710.78.62.157
8010.78.62.158/3110.78.62.158 – 10.78.62.15910.78.62.159
8110.78.62.160/3110.78.62.160 – 10.78.62.16110.78.62.161
8210.78.62.162/3110.78.62.162 – 10.78.62.16310.78.62.163
8310.78.62.164/3110.78.62.164 – 10.78.62.16510.78.62.165
8410.78.62.166/3110.78.62.166 – 10.78.62.16710.78.62.167
8510.78.62.168/3110.78.62.168 – 10.78.62.16910.78.62.169
8610.78.62.170/3110.78.62.170 – 10.78.62.17110.78.62.171
8710.78.62.172/3110.78.62.172 – 10.78.62.17310.78.62.173
8810.78.62.174/3110.78.62.174 – 10.78.62.17510.78.62.175
8910.78.62.176/3110.78.62.176 – 10.78.62.17710.78.62.177
9010.78.62.178/3110.78.62.178 – 10.78.62.17910.78.62.179
9110.78.62.180/3110.78.62.180 – 10.78.62.18110.78.62.181
9210.78.62.182/3110.78.62.182 – 10.78.62.18310.78.62.183
9310.78.62.184/3110.78.62.184 – 10.78.62.18510.78.62.185
9410.78.62.186/3110.78.62.186 – 10.78.62.18710.78.62.187
9510.78.62.188/3110.78.62.188 – 10.78.62.18910.78.62.189
9610.78.62.190/3110.78.62.190 – 10.78.62.19110.78.62.191
9710.78.62.192/3110.78.62.192 – 10.78.62.19310.78.62.193
9810.78.62.194/3110.78.62.194 – 10.78.62.19510.78.62.195
9910.78.62.196/3110.78.62.196 – 10.78.62.19710.78.62.197
10010.78.62.198/3110.78.62.198 – 10.78.62.19910.78.62.199
10110.78.62.200/3110.78.62.200 – 10.78.62.20110.78.62.201
10210.78.62.202/3110.78.62.202 – 10.78.62.20310.78.62.203
10310.78.62.204/3110.78.62.204 – 10.78.62.20510.78.62.205
10410.78.62.206/3110.78.62.206 – 10.78.62.20710.78.62.207
10510.78.62.208/3110.78.62.208 – 10.78.62.20910.78.62.209
10610.78.62.210/3110.78.62.210 – 10.78.62.21110.78.62.211
10710.78.62.212/3110.78.62.212 – 10.78.62.21310.78.62.213
10810.78.62.214/3110.78.62.214 – 10.78.62.21510.78.62.215
10910.78.62.216/3110.78.62.216 – 10.78.62.21710.78.62.217
11010.78.62.218/3110.78.62.218 – 10.78.62.21910.78.62.219
11110.78.62.220/3110.78.62.220 – 10.78.62.22110.78.62.221
11210.78.62.222/3110.78.62.222 – 10.78.62.22310.78.62.223
11310.78.62.224/3110.78.62.224 – 10.78.62.22510.78.62.225
11410.78.62.226/3110.78.62.226 – 10.78.62.22710.78.62.227
11510.78.62.228/3110.78.62.228 – 10.78.62.22910.78.62.229
11610.78.62.230/3110.78.62.230 – 10.78.62.23110.78.62.231
11710.78.62.232/3110.78.62.232 – 10.78.62.23310.78.62.233
11810.78.62.234/3110.78.62.234 – 10.78.62.23510.78.62.235
11910.78.62.236/3110.78.62.236 – 10.78.62.23710.78.62.237
12010.78.62.238/3110.78.62.238 – 10.78.62.23910.78.62.239
12110.78.62.240/3110.78.62.240 – 10.78.62.24110.78.62.241
12210.78.62.242/3110.78.62.242 – 10.78.62.24310.78.62.243
12310.78.62.244/3110.78.62.244 – 10.78.62.24510.78.62.245
12410.78.62.246/3110.78.62.246 – 10.78.62.24710.78.62.247
12510.78.62.248/3110.78.62.248 – 10.78.62.24910.78.62.249
12610.78.62.250/3110.78.62.250 – 10.78.62.25110.78.62.251
12710.78.62.252/3110.78.62.252 – 10.78.62.25310.78.62.253
12810.78.62.254/3110.78.62.254 – 10.78.62.25510.78.62.255
01 / table

IPv4 CIDR prefix table.

Click a prefix longer than your network to split it into subnets.

prefixsubnet maskaddresseshostsin your /24
/00.0.0.04,294,967,2964,294,967,294-
/1128.0.0.02,147,483,6482,147,483,646-
/2192.0.0.01,073,741,8241,073,741,822-
/3224.0.0.0536,870,912536,870,910-
/4240.0.0.0268,435,456268,435,454-
/5248.0.0.0134,217,728134,217,726-
/6252.0.0.067,108,86467,108,862-
/7254.0.0.033,554,43233,554,430-
/8255.0.0.016,777,21616,777,214-
/9255.128.0.08,388,6088,388,606-
/10255.192.0.04,194,3044,194,302-
/11255.224.0.02,097,1522,097,150-
/12255.240.0.01,048,5761,048,574-
/13255.248.0.0524,288524,286-
/14255.252.0.0262,144262,142-
/15255.254.0.0131,072131,070-
/16255.255.0.065,53665,534-
/17255.255.128.032,76832,766-
/18255.255.192.016,38416,382-
/19255.255.224.08,1928,190-
/20255.255.240.04,0964,094-
/21255.255.248.02,0482,046-
/22255.255.252.01,0241,022-
/23255.255.254.0512510-
/24255.255.255.02562541
/25255.255.255.1281281262 split →
/26255.255.255.19264624 split →
/27255.255.255.22432308 split →
/28255.255.255.240161416 split →
/29255.255.255.2488632 split →
/30255.255.255.2524264 split →
/31255.255.255.25422128 split →
/32255.255.255.25511256 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.

Learn how to work it out →