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)10.78.141.0/24
network10.78.141.0/24
broadcast10.78.141.255
first host10.78.141.1
last host10.78.141.254
subnet mask255.255.255.0
wildcard0.0.0.255
addresses256
usable hosts254
classA
ipcalc 10.78.141.0/24
address00001010.01001110.10001101.00000000
subnet mask11111111.11111111.11111111.00000000
network00001010.01001110.10001101.00000000
broadcast00001010.01001110.10001101.11111111
green = network part, grey = host part
hex0x0a4e8d00
decimal172920064
reverse dns0.141.78.10.in-addr.arpa
ipv4-mapped::ffff:a4e:8d00

/24 split into /31 · 128 subnets

close ×
#networkhost rangebroadcast
110.78.141.0/3110.78.141.0 – 10.78.141.110.78.141.1
210.78.141.2/3110.78.141.2 – 10.78.141.310.78.141.3
310.78.141.4/3110.78.141.4 – 10.78.141.510.78.141.5
410.78.141.6/3110.78.141.6 – 10.78.141.710.78.141.7
510.78.141.8/3110.78.141.8 – 10.78.141.910.78.141.9
610.78.141.10/3110.78.141.10 – 10.78.141.1110.78.141.11
710.78.141.12/3110.78.141.12 – 10.78.141.1310.78.141.13
810.78.141.14/3110.78.141.14 – 10.78.141.1510.78.141.15
910.78.141.16/3110.78.141.16 – 10.78.141.1710.78.141.17
1010.78.141.18/3110.78.141.18 – 10.78.141.1910.78.141.19
1110.78.141.20/3110.78.141.20 – 10.78.141.2110.78.141.21
1210.78.141.22/3110.78.141.22 – 10.78.141.2310.78.141.23
1310.78.141.24/3110.78.141.24 – 10.78.141.2510.78.141.25
1410.78.141.26/3110.78.141.26 – 10.78.141.2710.78.141.27
1510.78.141.28/3110.78.141.28 – 10.78.141.2910.78.141.29
1610.78.141.30/3110.78.141.30 – 10.78.141.3110.78.141.31
1710.78.141.32/3110.78.141.32 – 10.78.141.3310.78.141.33
1810.78.141.34/3110.78.141.34 – 10.78.141.3510.78.141.35
1910.78.141.36/3110.78.141.36 – 10.78.141.3710.78.141.37
2010.78.141.38/3110.78.141.38 – 10.78.141.3910.78.141.39
2110.78.141.40/3110.78.141.40 – 10.78.141.4110.78.141.41
2210.78.141.42/3110.78.141.42 – 10.78.141.4310.78.141.43
2310.78.141.44/3110.78.141.44 – 10.78.141.4510.78.141.45
2410.78.141.46/3110.78.141.46 – 10.78.141.4710.78.141.47
2510.78.141.48/3110.78.141.48 – 10.78.141.4910.78.141.49
2610.78.141.50/3110.78.141.50 – 10.78.141.5110.78.141.51
2710.78.141.52/3110.78.141.52 – 10.78.141.5310.78.141.53
2810.78.141.54/3110.78.141.54 – 10.78.141.5510.78.141.55
2910.78.141.56/3110.78.141.56 – 10.78.141.5710.78.141.57
3010.78.141.58/3110.78.141.58 – 10.78.141.5910.78.141.59
3110.78.141.60/3110.78.141.60 – 10.78.141.6110.78.141.61
3210.78.141.62/3110.78.141.62 – 10.78.141.6310.78.141.63
3310.78.141.64/3110.78.141.64 – 10.78.141.6510.78.141.65
3410.78.141.66/3110.78.141.66 – 10.78.141.6710.78.141.67
3510.78.141.68/3110.78.141.68 – 10.78.141.6910.78.141.69
3610.78.141.70/3110.78.141.70 – 10.78.141.7110.78.141.71
3710.78.141.72/3110.78.141.72 – 10.78.141.7310.78.141.73
3810.78.141.74/3110.78.141.74 – 10.78.141.7510.78.141.75
3910.78.141.76/3110.78.141.76 – 10.78.141.7710.78.141.77
4010.78.141.78/3110.78.141.78 – 10.78.141.7910.78.141.79
4110.78.141.80/3110.78.141.80 – 10.78.141.8110.78.141.81
4210.78.141.82/3110.78.141.82 – 10.78.141.8310.78.141.83
4310.78.141.84/3110.78.141.84 – 10.78.141.8510.78.141.85
4410.78.141.86/3110.78.141.86 – 10.78.141.8710.78.141.87
4510.78.141.88/3110.78.141.88 – 10.78.141.8910.78.141.89
4610.78.141.90/3110.78.141.90 – 10.78.141.9110.78.141.91
4710.78.141.92/3110.78.141.92 – 10.78.141.9310.78.141.93
4810.78.141.94/3110.78.141.94 – 10.78.141.9510.78.141.95
4910.78.141.96/3110.78.141.96 – 10.78.141.9710.78.141.97
5010.78.141.98/3110.78.141.98 – 10.78.141.9910.78.141.99
5110.78.141.100/3110.78.141.100 – 10.78.141.10110.78.141.101
5210.78.141.102/3110.78.141.102 – 10.78.141.10310.78.141.103
5310.78.141.104/3110.78.141.104 – 10.78.141.10510.78.141.105
5410.78.141.106/3110.78.141.106 – 10.78.141.10710.78.141.107
5510.78.141.108/3110.78.141.108 – 10.78.141.10910.78.141.109
5610.78.141.110/3110.78.141.110 – 10.78.141.11110.78.141.111
5710.78.141.112/3110.78.141.112 – 10.78.141.11310.78.141.113
5810.78.141.114/3110.78.141.114 – 10.78.141.11510.78.141.115
5910.78.141.116/3110.78.141.116 – 10.78.141.11710.78.141.117
6010.78.141.118/3110.78.141.118 – 10.78.141.11910.78.141.119
6110.78.141.120/3110.78.141.120 – 10.78.141.12110.78.141.121
6210.78.141.122/3110.78.141.122 – 10.78.141.12310.78.141.123
6310.78.141.124/3110.78.141.124 – 10.78.141.12510.78.141.125
6410.78.141.126/3110.78.141.126 – 10.78.141.12710.78.141.127
6510.78.141.128/3110.78.141.128 – 10.78.141.12910.78.141.129
6610.78.141.130/3110.78.141.130 – 10.78.141.13110.78.141.131
6710.78.141.132/3110.78.141.132 – 10.78.141.13310.78.141.133
6810.78.141.134/3110.78.141.134 – 10.78.141.13510.78.141.135
6910.78.141.136/3110.78.141.136 – 10.78.141.13710.78.141.137
7010.78.141.138/3110.78.141.138 – 10.78.141.13910.78.141.139
7110.78.141.140/3110.78.141.140 – 10.78.141.14110.78.141.141
7210.78.141.142/3110.78.141.142 – 10.78.141.14310.78.141.143
7310.78.141.144/3110.78.141.144 – 10.78.141.14510.78.141.145
7410.78.141.146/3110.78.141.146 – 10.78.141.14710.78.141.147
7510.78.141.148/3110.78.141.148 – 10.78.141.14910.78.141.149
7610.78.141.150/3110.78.141.150 – 10.78.141.15110.78.141.151
7710.78.141.152/3110.78.141.152 – 10.78.141.15310.78.141.153
7810.78.141.154/3110.78.141.154 – 10.78.141.15510.78.141.155
7910.78.141.156/3110.78.141.156 – 10.78.141.15710.78.141.157
8010.78.141.158/3110.78.141.158 – 10.78.141.15910.78.141.159
8110.78.141.160/3110.78.141.160 – 10.78.141.16110.78.141.161
8210.78.141.162/3110.78.141.162 – 10.78.141.16310.78.141.163
8310.78.141.164/3110.78.141.164 – 10.78.141.16510.78.141.165
8410.78.141.166/3110.78.141.166 – 10.78.141.16710.78.141.167
8510.78.141.168/3110.78.141.168 – 10.78.141.16910.78.141.169
8610.78.141.170/3110.78.141.170 – 10.78.141.17110.78.141.171
8710.78.141.172/3110.78.141.172 – 10.78.141.17310.78.141.173
8810.78.141.174/3110.78.141.174 – 10.78.141.17510.78.141.175
8910.78.141.176/3110.78.141.176 – 10.78.141.17710.78.141.177
9010.78.141.178/3110.78.141.178 – 10.78.141.17910.78.141.179
9110.78.141.180/3110.78.141.180 – 10.78.141.18110.78.141.181
9210.78.141.182/3110.78.141.182 – 10.78.141.18310.78.141.183
9310.78.141.184/3110.78.141.184 – 10.78.141.18510.78.141.185
9410.78.141.186/3110.78.141.186 – 10.78.141.18710.78.141.187
9510.78.141.188/3110.78.141.188 – 10.78.141.18910.78.141.189
9610.78.141.190/3110.78.141.190 – 10.78.141.19110.78.141.191
9710.78.141.192/3110.78.141.192 – 10.78.141.19310.78.141.193
9810.78.141.194/3110.78.141.194 – 10.78.141.19510.78.141.195
9910.78.141.196/3110.78.141.196 – 10.78.141.19710.78.141.197
10010.78.141.198/3110.78.141.198 – 10.78.141.19910.78.141.199
10110.78.141.200/3110.78.141.200 – 10.78.141.20110.78.141.201
10210.78.141.202/3110.78.141.202 – 10.78.141.20310.78.141.203
10310.78.141.204/3110.78.141.204 – 10.78.141.20510.78.141.205
10410.78.141.206/3110.78.141.206 – 10.78.141.20710.78.141.207
10510.78.141.208/3110.78.141.208 – 10.78.141.20910.78.141.209
10610.78.141.210/3110.78.141.210 – 10.78.141.21110.78.141.211
10710.78.141.212/3110.78.141.212 – 10.78.141.21310.78.141.213
10810.78.141.214/3110.78.141.214 – 10.78.141.21510.78.141.215
10910.78.141.216/3110.78.141.216 – 10.78.141.21710.78.141.217
11010.78.141.218/3110.78.141.218 – 10.78.141.21910.78.141.219
11110.78.141.220/3110.78.141.220 – 10.78.141.22110.78.141.221
11210.78.141.222/3110.78.141.222 – 10.78.141.22310.78.141.223
11310.78.141.224/3110.78.141.224 – 10.78.141.22510.78.141.225
11410.78.141.226/3110.78.141.226 – 10.78.141.22710.78.141.227
11510.78.141.228/3110.78.141.228 – 10.78.141.22910.78.141.229
11610.78.141.230/3110.78.141.230 – 10.78.141.23110.78.141.231
11710.78.141.232/3110.78.141.232 – 10.78.141.23310.78.141.233
11810.78.141.234/3110.78.141.234 – 10.78.141.23510.78.141.235
11910.78.141.236/3110.78.141.236 – 10.78.141.23710.78.141.237
12010.78.141.238/3110.78.141.238 – 10.78.141.23910.78.141.239
12110.78.141.240/3110.78.141.240 – 10.78.141.24110.78.141.241
12210.78.141.242/3110.78.141.242 – 10.78.141.24310.78.141.243
12310.78.141.244/3110.78.141.244 – 10.78.141.24510.78.141.245
12410.78.141.246/3110.78.141.246 – 10.78.141.24710.78.141.247
12510.78.141.248/3110.78.141.248 – 10.78.141.24910.78.141.249
12610.78.141.250/3110.78.141.250 – 10.78.141.25110.78.141.251
12710.78.141.252/3110.78.141.252 – 10.78.141.25310.78.141.253
12810.78.141.254/3110.78.141.254 – 10.78.141.25510.78.141.255
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 →