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)10.78.94.0/24
network10.78.94.0/24
broadcast10.78.94.255
first host10.78.94.1
last host10.78.94.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.78.94.0/24
address00001010.01001110.01011110.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.01001110.01011110.00000000
broadcast00001010.01001110.01011110.11111111
green = network part, grey = host part
hex0x0a4e5e00
decimal172908032
reverse dns0.94.78.10.in-addr.arpa
ipv4-mapped::ffff:a4e:5e00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.78.94.0/3110.78.94.0 – 10.78.94.110.78.94.1
210.78.94.2/3110.78.94.2 – 10.78.94.310.78.94.3
310.78.94.4/3110.78.94.4 – 10.78.94.510.78.94.5
410.78.94.6/3110.78.94.6 – 10.78.94.710.78.94.7
510.78.94.8/3110.78.94.8 – 10.78.94.910.78.94.9
610.78.94.10/3110.78.94.10 – 10.78.94.1110.78.94.11
710.78.94.12/3110.78.94.12 – 10.78.94.1310.78.94.13
810.78.94.14/3110.78.94.14 – 10.78.94.1510.78.94.15
910.78.94.16/3110.78.94.16 – 10.78.94.1710.78.94.17
1010.78.94.18/3110.78.94.18 – 10.78.94.1910.78.94.19
1110.78.94.20/3110.78.94.20 – 10.78.94.2110.78.94.21
1210.78.94.22/3110.78.94.22 – 10.78.94.2310.78.94.23
1310.78.94.24/3110.78.94.24 – 10.78.94.2510.78.94.25
1410.78.94.26/3110.78.94.26 – 10.78.94.2710.78.94.27
1510.78.94.28/3110.78.94.28 – 10.78.94.2910.78.94.29
1610.78.94.30/3110.78.94.30 – 10.78.94.3110.78.94.31
1710.78.94.32/3110.78.94.32 – 10.78.94.3310.78.94.33
1810.78.94.34/3110.78.94.34 – 10.78.94.3510.78.94.35
1910.78.94.36/3110.78.94.36 – 10.78.94.3710.78.94.37
2010.78.94.38/3110.78.94.38 – 10.78.94.3910.78.94.39
2110.78.94.40/3110.78.94.40 – 10.78.94.4110.78.94.41
2210.78.94.42/3110.78.94.42 – 10.78.94.4310.78.94.43
2310.78.94.44/3110.78.94.44 – 10.78.94.4510.78.94.45
2410.78.94.46/3110.78.94.46 – 10.78.94.4710.78.94.47
2510.78.94.48/3110.78.94.48 – 10.78.94.4910.78.94.49
2610.78.94.50/3110.78.94.50 – 10.78.94.5110.78.94.51
2710.78.94.52/3110.78.94.52 – 10.78.94.5310.78.94.53
2810.78.94.54/3110.78.94.54 – 10.78.94.5510.78.94.55
2910.78.94.56/3110.78.94.56 – 10.78.94.5710.78.94.57
3010.78.94.58/3110.78.94.58 – 10.78.94.5910.78.94.59
3110.78.94.60/3110.78.94.60 – 10.78.94.6110.78.94.61
3210.78.94.62/3110.78.94.62 – 10.78.94.6310.78.94.63
3310.78.94.64/3110.78.94.64 – 10.78.94.6510.78.94.65
3410.78.94.66/3110.78.94.66 – 10.78.94.6710.78.94.67
3510.78.94.68/3110.78.94.68 – 10.78.94.6910.78.94.69
3610.78.94.70/3110.78.94.70 – 10.78.94.7110.78.94.71
3710.78.94.72/3110.78.94.72 – 10.78.94.7310.78.94.73
3810.78.94.74/3110.78.94.74 – 10.78.94.7510.78.94.75
3910.78.94.76/3110.78.94.76 – 10.78.94.7710.78.94.77
4010.78.94.78/3110.78.94.78 – 10.78.94.7910.78.94.79
4110.78.94.80/3110.78.94.80 – 10.78.94.8110.78.94.81
4210.78.94.82/3110.78.94.82 – 10.78.94.8310.78.94.83
4310.78.94.84/3110.78.94.84 – 10.78.94.8510.78.94.85
4410.78.94.86/3110.78.94.86 – 10.78.94.8710.78.94.87
4510.78.94.88/3110.78.94.88 – 10.78.94.8910.78.94.89
4610.78.94.90/3110.78.94.90 – 10.78.94.9110.78.94.91
4710.78.94.92/3110.78.94.92 – 10.78.94.9310.78.94.93
4810.78.94.94/3110.78.94.94 – 10.78.94.9510.78.94.95
4910.78.94.96/3110.78.94.96 – 10.78.94.9710.78.94.97
5010.78.94.98/3110.78.94.98 – 10.78.94.9910.78.94.99
5110.78.94.100/3110.78.94.100 – 10.78.94.10110.78.94.101
5210.78.94.102/3110.78.94.102 – 10.78.94.10310.78.94.103
5310.78.94.104/3110.78.94.104 – 10.78.94.10510.78.94.105
5410.78.94.106/3110.78.94.106 – 10.78.94.10710.78.94.107
5510.78.94.108/3110.78.94.108 – 10.78.94.10910.78.94.109
5610.78.94.110/3110.78.94.110 – 10.78.94.11110.78.94.111
5710.78.94.112/3110.78.94.112 – 10.78.94.11310.78.94.113
5810.78.94.114/3110.78.94.114 – 10.78.94.11510.78.94.115
5910.78.94.116/3110.78.94.116 – 10.78.94.11710.78.94.117
6010.78.94.118/3110.78.94.118 – 10.78.94.11910.78.94.119
6110.78.94.120/3110.78.94.120 – 10.78.94.12110.78.94.121
6210.78.94.122/3110.78.94.122 – 10.78.94.12310.78.94.123
6310.78.94.124/3110.78.94.124 – 10.78.94.12510.78.94.125
6410.78.94.126/3110.78.94.126 – 10.78.94.12710.78.94.127
6510.78.94.128/3110.78.94.128 – 10.78.94.12910.78.94.129
6610.78.94.130/3110.78.94.130 – 10.78.94.13110.78.94.131
6710.78.94.132/3110.78.94.132 – 10.78.94.13310.78.94.133
6810.78.94.134/3110.78.94.134 – 10.78.94.13510.78.94.135
6910.78.94.136/3110.78.94.136 – 10.78.94.13710.78.94.137
7010.78.94.138/3110.78.94.138 – 10.78.94.13910.78.94.139
7110.78.94.140/3110.78.94.140 – 10.78.94.14110.78.94.141
7210.78.94.142/3110.78.94.142 – 10.78.94.14310.78.94.143
7310.78.94.144/3110.78.94.144 – 10.78.94.14510.78.94.145
7410.78.94.146/3110.78.94.146 – 10.78.94.14710.78.94.147
7510.78.94.148/3110.78.94.148 – 10.78.94.14910.78.94.149
7610.78.94.150/3110.78.94.150 – 10.78.94.15110.78.94.151
7710.78.94.152/3110.78.94.152 – 10.78.94.15310.78.94.153
7810.78.94.154/3110.78.94.154 – 10.78.94.15510.78.94.155
7910.78.94.156/3110.78.94.156 – 10.78.94.15710.78.94.157
8010.78.94.158/3110.78.94.158 – 10.78.94.15910.78.94.159
8110.78.94.160/3110.78.94.160 – 10.78.94.16110.78.94.161
8210.78.94.162/3110.78.94.162 – 10.78.94.16310.78.94.163
8310.78.94.164/3110.78.94.164 – 10.78.94.16510.78.94.165
8410.78.94.166/3110.78.94.166 – 10.78.94.16710.78.94.167
8510.78.94.168/3110.78.94.168 – 10.78.94.16910.78.94.169
8610.78.94.170/3110.78.94.170 – 10.78.94.17110.78.94.171
8710.78.94.172/3110.78.94.172 – 10.78.94.17310.78.94.173
8810.78.94.174/3110.78.94.174 – 10.78.94.17510.78.94.175
8910.78.94.176/3110.78.94.176 – 10.78.94.17710.78.94.177
9010.78.94.178/3110.78.94.178 – 10.78.94.17910.78.94.179
9110.78.94.180/3110.78.94.180 – 10.78.94.18110.78.94.181
9210.78.94.182/3110.78.94.182 – 10.78.94.18310.78.94.183
9310.78.94.184/3110.78.94.184 – 10.78.94.18510.78.94.185
9410.78.94.186/3110.78.94.186 – 10.78.94.18710.78.94.187
9510.78.94.188/3110.78.94.188 – 10.78.94.18910.78.94.189
9610.78.94.190/3110.78.94.190 – 10.78.94.19110.78.94.191
9710.78.94.192/3110.78.94.192 – 10.78.94.19310.78.94.193
9810.78.94.194/3110.78.94.194 – 10.78.94.19510.78.94.195
9910.78.94.196/3110.78.94.196 – 10.78.94.19710.78.94.197
10010.78.94.198/3110.78.94.198 – 10.78.94.19910.78.94.199
10110.78.94.200/3110.78.94.200 – 10.78.94.20110.78.94.201
10210.78.94.202/3110.78.94.202 – 10.78.94.20310.78.94.203
10310.78.94.204/3110.78.94.204 – 10.78.94.20510.78.94.205
10410.78.94.206/3110.78.94.206 – 10.78.94.20710.78.94.207
10510.78.94.208/3110.78.94.208 – 10.78.94.20910.78.94.209
10610.78.94.210/3110.78.94.210 – 10.78.94.21110.78.94.211
10710.78.94.212/3110.78.94.212 – 10.78.94.21310.78.94.213
10810.78.94.214/3110.78.94.214 – 10.78.94.21510.78.94.215
10910.78.94.216/3110.78.94.216 – 10.78.94.21710.78.94.217
11010.78.94.218/3110.78.94.218 – 10.78.94.21910.78.94.219
11110.78.94.220/3110.78.94.220 – 10.78.94.22110.78.94.221
11210.78.94.222/3110.78.94.222 – 10.78.94.22310.78.94.223
11310.78.94.224/3110.78.94.224 – 10.78.94.22510.78.94.225
11410.78.94.226/3110.78.94.226 – 10.78.94.22710.78.94.227
11510.78.94.228/3110.78.94.228 – 10.78.94.22910.78.94.229
11610.78.94.230/3110.78.94.230 – 10.78.94.23110.78.94.231
11710.78.94.232/3110.78.94.232 – 10.78.94.23310.78.94.233
11810.78.94.234/3110.78.94.234 – 10.78.94.23510.78.94.235
11910.78.94.236/3110.78.94.236 – 10.78.94.23710.78.94.237
12010.78.94.238/3110.78.94.238 – 10.78.94.23910.78.94.239
12110.78.94.240/3110.78.94.240 – 10.78.94.24110.78.94.241
12210.78.94.242/3110.78.94.242 – 10.78.94.24310.78.94.243
12310.78.94.244/3110.78.94.244 – 10.78.94.24510.78.94.245
12410.78.94.246/3110.78.94.246 – 10.78.94.24710.78.94.247
12510.78.94.248/3110.78.94.248 – 10.78.94.24910.78.94.249
12610.78.94.250/3110.78.94.250 – 10.78.94.25110.78.94.251
12710.78.94.252/3110.78.94.252 – 10.78.94.25310.78.94.253
12810.78.94.254/3110.78.94.254 – 10.78.94.25510.78.94.255
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 →