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)10.78.46.0/24
network10.78.46.0/24
broadcast10.78.46.255
first host10.78.46.1
last host10.78.46.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.78.46.0/24
address00001010.01001110.00101110.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.01001110.00101110.00000000
broadcast00001010.01001110.00101110.11111111
green = network part, grey = host part
hex0x0a4e2e00
decimal172895744
reverse dns0.46.78.10.in-addr.arpa
ipv4-mapped::ffff:a4e:2e00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.78.46.0/3110.78.46.0 – 10.78.46.110.78.46.1
210.78.46.2/3110.78.46.2 – 10.78.46.310.78.46.3
310.78.46.4/3110.78.46.4 – 10.78.46.510.78.46.5
410.78.46.6/3110.78.46.6 – 10.78.46.710.78.46.7
510.78.46.8/3110.78.46.8 – 10.78.46.910.78.46.9
610.78.46.10/3110.78.46.10 – 10.78.46.1110.78.46.11
710.78.46.12/3110.78.46.12 – 10.78.46.1310.78.46.13
810.78.46.14/3110.78.46.14 – 10.78.46.1510.78.46.15
910.78.46.16/3110.78.46.16 – 10.78.46.1710.78.46.17
1010.78.46.18/3110.78.46.18 – 10.78.46.1910.78.46.19
1110.78.46.20/3110.78.46.20 – 10.78.46.2110.78.46.21
1210.78.46.22/3110.78.46.22 – 10.78.46.2310.78.46.23
1310.78.46.24/3110.78.46.24 – 10.78.46.2510.78.46.25
1410.78.46.26/3110.78.46.26 – 10.78.46.2710.78.46.27
1510.78.46.28/3110.78.46.28 – 10.78.46.2910.78.46.29
1610.78.46.30/3110.78.46.30 – 10.78.46.3110.78.46.31
1710.78.46.32/3110.78.46.32 – 10.78.46.3310.78.46.33
1810.78.46.34/3110.78.46.34 – 10.78.46.3510.78.46.35
1910.78.46.36/3110.78.46.36 – 10.78.46.3710.78.46.37
2010.78.46.38/3110.78.46.38 – 10.78.46.3910.78.46.39
2110.78.46.40/3110.78.46.40 – 10.78.46.4110.78.46.41
2210.78.46.42/3110.78.46.42 – 10.78.46.4310.78.46.43
2310.78.46.44/3110.78.46.44 – 10.78.46.4510.78.46.45
2410.78.46.46/3110.78.46.46 – 10.78.46.4710.78.46.47
2510.78.46.48/3110.78.46.48 – 10.78.46.4910.78.46.49
2610.78.46.50/3110.78.46.50 – 10.78.46.5110.78.46.51
2710.78.46.52/3110.78.46.52 – 10.78.46.5310.78.46.53
2810.78.46.54/3110.78.46.54 – 10.78.46.5510.78.46.55
2910.78.46.56/3110.78.46.56 – 10.78.46.5710.78.46.57
3010.78.46.58/3110.78.46.58 – 10.78.46.5910.78.46.59
3110.78.46.60/3110.78.46.60 – 10.78.46.6110.78.46.61
3210.78.46.62/3110.78.46.62 – 10.78.46.6310.78.46.63
3310.78.46.64/3110.78.46.64 – 10.78.46.6510.78.46.65
3410.78.46.66/3110.78.46.66 – 10.78.46.6710.78.46.67
3510.78.46.68/3110.78.46.68 – 10.78.46.6910.78.46.69
3610.78.46.70/3110.78.46.70 – 10.78.46.7110.78.46.71
3710.78.46.72/3110.78.46.72 – 10.78.46.7310.78.46.73
3810.78.46.74/3110.78.46.74 – 10.78.46.7510.78.46.75
3910.78.46.76/3110.78.46.76 – 10.78.46.7710.78.46.77
4010.78.46.78/3110.78.46.78 – 10.78.46.7910.78.46.79
4110.78.46.80/3110.78.46.80 – 10.78.46.8110.78.46.81
4210.78.46.82/3110.78.46.82 – 10.78.46.8310.78.46.83
4310.78.46.84/3110.78.46.84 – 10.78.46.8510.78.46.85
4410.78.46.86/3110.78.46.86 – 10.78.46.8710.78.46.87
4510.78.46.88/3110.78.46.88 – 10.78.46.8910.78.46.89
4610.78.46.90/3110.78.46.90 – 10.78.46.9110.78.46.91
4710.78.46.92/3110.78.46.92 – 10.78.46.9310.78.46.93
4810.78.46.94/3110.78.46.94 – 10.78.46.9510.78.46.95
4910.78.46.96/3110.78.46.96 – 10.78.46.9710.78.46.97
5010.78.46.98/3110.78.46.98 – 10.78.46.9910.78.46.99
5110.78.46.100/3110.78.46.100 – 10.78.46.10110.78.46.101
5210.78.46.102/3110.78.46.102 – 10.78.46.10310.78.46.103
5310.78.46.104/3110.78.46.104 – 10.78.46.10510.78.46.105
5410.78.46.106/3110.78.46.106 – 10.78.46.10710.78.46.107
5510.78.46.108/3110.78.46.108 – 10.78.46.10910.78.46.109
5610.78.46.110/3110.78.46.110 – 10.78.46.11110.78.46.111
5710.78.46.112/3110.78.46.112 – 10.78.46.11310.78.46.113
5810.78.46.114/3110.78.46.114 – 10.78.46.11510.78.46.115
5910.78.46.116/3110.78.46.116 – 10.78.46.11710.78.46.117
6010.78.46.118/3110.78.46.118 – 10.78.46.11910.78.46.119
6110.78.46.120/3110.78.46.120 – 10.78.46.12110.78.46.121
6210.78.46.122/3110.78.46.122 – 10.78.46.12310.78.46.123
6310.78.46.124/3110.78.46.124 – 10.78.46.12510.78.46.125
6410.78.46.126/3110.78.46.126 – 10.78.46.12710.78.46.127
6510.78.46.128/3110.78.46.128 – 10.78.46.12910.78.46.129
6610.78.46.130/3110.78.46.130 – 10.78.46.13110.78.46.131
6710.78.46.132/3110.78.46.132 – 10.78.46.13310.78.46.133
6810.78.46.134/3110.78.46.134 – 10.78.46.13510.78.46.135
6910.78.46.136/3110.78.46.136 – 10.78.46.13710.78.46.137
7010.78.46.138/3110.78.46.138 – 10.78.46.13910.78.46.139
7110.78.46.140/3110.78.46.140 – 10.78.46.14110.78.46.141
7210.78.46.142/3110.78.46.142 – 10.78.46.14310.78.46.143
7310.78.46.144/3110.78.46.144 – 10.78.46.14510.78.46.145
7410.78.46.146/3110.78.46.146 – 10.78.46.14710.78.46.147
7510.78.46.148/3110.78.46.148 – 10.78.46.14910.78.46.149
7610.78.46.150/3110.78.46.150 – 10.78.46.15110.78.46.151
7710.78.46.152/3110.78.46.152 – 10.78.46.15310.78.46.153
7810.78.46.154/3110.78.46.154 – 10.78.46.15510.78.46.155
7910.78.46.156/3110.78.46.156 – 10.78.46.15710.78.46.157
8010.78.46.158/3110.78.46.158 – 10.78.46.15910.78.46.159
8110.78.46.160/3110.78.46.160 – 10.78.46.16110.78.46.161
8210.78.46.162/3110.78.46.162 – 10.78.46.16310.78.46.163
8310.78.46.164/3110.78.46.164 – 10.78.46.16510.78.46.165
8410.78.46.166/3110.78.46.166 – 10.78.46.16710.78.46.167
8510.78.46.168/3110.78.46.168 – 10.78.46.16910.78.46.169
8610.78.46.170/3110.78.46.170 – 10.78.46.17110.78.46.171
8710.78.46.172/3110.78.46.172 – 10.78.46.17310.78.46.173
8810.78.46.174/3110.78.46.174 – 10.78.46.17510.78.46.175
8910.78.46.176/3110.78.46.176 – 10.78.46.17710.78.46.177
9010.78.46.178/3110.78.46.178 – 10.78.46.17910.78.46.179
9110.78.46.180/3110.78.46.180 – 10.78.46.18110.78.46.181
9210.78.46.182/3110.78.46.182 – 10.78.46.18310.78.46.183
9310.78.46.184/3110.78.46.184 – 10.78.46.18510.78.46.185
9410.78.46.186/3110.78.46.186 – 10.78.46.18710.78.46.187
9510.78.46.188/3110.78.46.188 – 10.78.46.18910.78.46.189
9610.78.46.190/3110.78.46.190 – 10.78.46.19110.78.46.191
9710.78.46.192/3110.78.46.192 – 10.78.46.19310.78.46.193
9810.78.46.194/3110.78.46.194 – 10.78.46.19510.78.46.195
9910.78.46.196/3110.78.46.196 – 10.78.46.19710.78.46.197
10010.78.46.198/3110.78.46.198 – 10.78.46.19910.78.46.199
10110.78.46.200/3110.78.46.200 – 10.78.46.20110.78.46.201
10210.78.46.202/3110.78.46.202 – 10.78.46.20310.78.46.203
10310.78.46.204/3110.78.46.204 – 10.78.46.20510.78.46.205
10410.78.46.206/3110.78.46.206 – 10.78.46.20710.78.46.207
10510.78.46.208/3110.78.46.208 – 10.78.46.20910.78.46.209
10610.78.46.210/3110.78.46.210 – 10.78.46.21110.78.46.211
10710.78.46.212/3110.78.46.212 – 10.78.46.21310.78.46.213
10810.78.46.214/3110.78.46.214 – 10.78.46.21510.78.46.215
10910.78.46.216/3110.78.46.216 – 10.78.46.21710.78.46.217
11010.78.46.218/3110.78.46.218 – 10.78.46.21910.78.46.219
11110.78.46.220/3110.78.46.220 – 10.78.46.22110.78.46.221
11210.78.46.222/3110.78.46.222 – 10.78.46.22310.78.46.223
11310.78.46.224/3110.78.46.224 – 10.78.46.22510.78.46.225
11410.78.46.226/3110.78.46.226 – 10.78.46.22710.78.46.227
11510.78.46.228/3110.78.46.228 – 10.78.46.22910.78.46.229
11610.78.46.230/3110.78.46.230 – 10.78.46.23110.78.46.231
11710.78.46.232/3110.78.46.232 – 10.78.46.23310.78.46.233
11810.78.46.234/3110.78.46.234 – 10.78.46.23510.78.46.235
11910.78.46.236/3110.78.46.236 – 10.78.46.23710.78.46.237
12010.78.46.238/3110.78.46.238 – 10.78.46.23910.78.46.239
12110.78.46.240/3110.78.46.240 – 10.78.46.24110.78.46.241
12210.78.46.242/3110.78.46.242 – 10.78.46.24310.78.46.243
12310.78.46.244/3110.78.46.244 – 10.78.46.24510.78.46.245
12410.78.46.246/3110.78.46.246 – 10.78.46.24710.78.46.247
12510.78.46.248/3110.78.46.248 – 10.78.46.24910.78.46.249
12610.78.46.250/3110.78.46.250 – 10.78.46.25110.78.46.251
12710.78.46.252/3110.78.46.252 – 10.78.46.25310.78.46.253
12810.78.46.254/3110.78.46.254 – 10.78.46.25510.78.46.255
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 →