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.

Try:192.168.1.10/24 10.0.0.0/8 172.16.5.4/20 203.0.113.9/29

IPv6 calculator →

private IP (RFC 1918)10.0.114.0/24

network10.0.114.0/24

broadcast10.0.114.255

first host10.0.114.1

last host10.0.114.254

subnet mask255.255.255.0

wildcard0.0.0.255

addresses256

usable hosts254

classA

ipcalc 10.0.114.0/24

address00001010.00000000.01110010.00000000

subnet mask11111111.11111111.11111111.00000000

network00001010.00000000.01110010.00000000

broadcast00001010.00000000.01110010.11111111

green = network part, grey = host part

hex0x0a007200

decimal167801344

reverse dns0.114.0.10.in-addr.arpa

ipv4-mapped::ffff:a00:7200

/24 split into /31 · 128 subnets

close ×

#	network	host range	broadcast
1	10.0.114.0/31	10.0.114.0 – 10.0.114.1	10.0.114.1
2	10.0.114.2/31	10.0.114.2 – 10.0.114.3	10.0.114.3
3	10.0.114.4/31	10.0.114.4 – 10.0.114.5	10.0.114.5
4	10.0.114.6/31	10.0.114.6 – 10.0.114.7	10.0.114.7
5	10.0.114.8/31	10.0.114.8 – 10.0.114.9	10.0.114.9
6	10.0.114.10/31	10.0.114.10 – 10.0.114.11	10.0.114.11
7	10.0.114.12/31	10.0.114.12 – 10.0.114.13	10.0.114.13
8	10.0.114.14/31	10.0.114.14 – 10.0.114.15	10.0.114.15
9	10.0.114.16/31	10.0.114.16 – 10.0.114.17	10.0.114.17
10	10.0.114.18/31	10.0.114.18 – 10.0.114.19	10.0.114.19
11	10.0.114.20/31	10.0.114.20 – 10.0.114.21	10.0.114.21
12	10.0.114.22/31	10.0.114.22 – 10.0.114.23	10.0.114.23
13	10.0.114.24/31	10.0.114.24 – 10.0.114.25	10.0.114.25
14	10.0.114.26/31	10.0.114.26 – 10.0.114.27	10.0.114.27
15	10.0.114.28/31	10.0.114.28 – 10.0.114.29	10.0.114.29
16	10.0.114.30/31	10.0.114.30 – 10.0.114.31	10.0.114.31
17	10.0.114.32/31	10.0.114.32 – 10.0.114.33	10.0.114.33
18	10.0.114.34/31	10.0.114.34 – 10.0.114.35	10.0.114.35
19	10.0.114.36/31	10.0.114.36 – 10.0.114.37	10.0.114.37
20	10.0.114.38/31	10.0.114.38 – 10.0.114.39	10.0.114.39
21	10.0.114.40/31	10.0.114.40 – 10.0.114.41	10.0.114.41
22	10.0.114.42/31	10.0.114.42 – 10.0.114.43	10.0.114.43
23	10.0.114.44/31	10.0.114.44 – 10.0.114.45	10.0.114.45
24	10.0.114.46/31	10.0.114.46 – 10.0.114.47	10.0.114.47
25	10.0.114.48/31	10.0.114.48 – 10.0.114.49	10.0.114.49
26	10.0.114.50/31	10.0.114.50 – 10.0.114.51	10.0.114.51
27	10.0.114.52/31	10.0.114.52 – 10.0.114.53	10.0.114.53
28	10.0.114.54/31	10.0.114.54 – 10.0.114.55	10.0.114.55
29	10.0.114.56/31	10.0.114.56 – 10.0.114.57	10.0.114.57
30	10.0.114.58/31	10.0.114.58 – 10.0.114.59	10.0.114.59
31	10.0.114.60/31	10.0.114.60 – 10.0.114.61	10.0.114.61
32	10.0.114.62/31	10.0.114.62 – 10.0.114.63	10.0.114.63
33	10.0.114.64/31	10.0.114.64 – 10.0.114.65	10.0.114.65
34	10.0.114.66/31	10.0.114.66 – 10.0.114.67	10.0.114.67
35	10.0.114.68/31	10.0.114.68 – 10.0.114.69	10.0.114.69
36	10.0.114.70/31	10.0.114.70 – 10.0.114.71	10.0.114.71
37	10.0.114.72/31	10.0.114.72 – 10.0.114.73	10.0.114.73
38	10.0.114.74/31	10.0.114.74 – 10.0.114.75	10.0.114.75
39	10.0.114.76/31	10.0.114.76 – 10.0.114.77	10.0.114.77
40	10.0.114.78/31	10.0.114.78 – 10.0.114.79	10.0.114.79
41	10.0.114.80/31	10.0.114.80 – 10.0.114.81	10.0.114.81
42	10.0.114.82/31	10.0.114.82 – 10.0.114.83	10.0.114.83
43	10.0.114.84/31	10.0.114.84 – 10.0.114.85	10.0.114.85
44	10.0.114.86/31	10.0.114.86 – 10.0.114.87	10.0.114.87
45	10.0.114.88/31	10.0.114.88 – 10.0.114.89	10.0.114.89
46	10.0.114.90/31	10.0.114.90 – 10.0.114.91	10.0.114.91
47	10.0.114.92/31	10.0.114.92 – 10.0.114.93	10.0.114.93
48	10.0.114.94/31	10.0.114.94 – 10.0.114.95	10.0.114.95
49	10.0.114.96/31	10.0.114.96 – 10.0.114.97	10.0.114.97
50	10.0.114.98/31	10.0.114.98 – 10.0.114.99	10.0.114.99
51	10.0.114.100/31	10.0.114.100 – 10.0.114.101	10.0.114.101
52	10.0.114.102/31	10.0.114.102 – 10.0.114.103	10.0.114.103
53	10.0.114.104/31	10.0.114.104 – 10.0.114.105	10.0.114.105
54	10.0.114.106/31	10.0.114.106 – 10.0.114.107	10.0.114.107
55	10.0.114.108/31	10.0.114.108 – 10.0.114.109	10.0.114.109
56	10.0.114.110/31	10.0.114.110 – 10.0.114.111	10.0.114.111
57	10.0.114.112/31	10.0.114.112 – 10.0.114.113	10.0.114.113
58	10.0.114.114/31	10.0.114.114 – 10.0.114.115	10.0.114.115
59	10.0.114.116/31	10.0.114.116 – 10.0.114.117	10.0.114.117
60	10.0.114.118/31	10.0.114.118 – 10.0.114.119	10.0.114.119
61	10.0.114.120/31	10.0.114.120 – 10.0.114.121	10.0.114.121
62	10.0.114.122/31	10.0.114.122 – 10.0.114.123	10.0.114.123
63	10.0.114.124/31	10.0.114.124 – 10.0.114.125	10.0.114.125
64	10.0.114.126/31	10.0.114.126 – 10.0.114.127	10.0.114.127
65	10.0.114.128/31	10.0.114.128 – 10.0.114.129	10.0.114.129
66	10.0.114.130/31	10.0.114.130 – 10.0.114.131	10.0.114.131
67	10.0.114.132/31	10.0.114.132 – 10.0.114.133	10.0.114.133
68	10.0.114.134/31	10.0.114.134 – 10.0.114.135	10.0.114.135
69	10.0.114.136/31	10.0.114.136 – 10.0.114.137	10.0.114.137
70	10.0.114.138/31	10.0.114.138 – 10.0.114.139	10.0.114.139
71	10.0.114.140/31	10.0.114.140 – 10.0.114.141	10.0.114.141
72	10.0.114.142/31	10.0.114.142 – 10.0.114.143	10.0.114.143
73	10.0.114.144/31	10.0.114.144 – 10.0.114.145	10.0.114.145
74	10.0.114.146/31	10.0.114.146 – 10.0.114.147	10.0.114.147
75	10.0.114.148/31	10.0.114.148 – 10.0.114.149	10.0.114.149
76	10.0.114.150/31	10.0.114.150 – 10.0.114.151	10.0.114.151
77	10.0.114.152/31	10.0.114.152 – 10.0.114.153	10.0.114.153
78	10.0.114.154/31	10.0.114.154 – 10.0.114.155	10.0.114.155
79	10.0.114.156/31	10.0.114.156 – 10.0.114.157	10.0.114.157
80	10.0.114.158/31	10.0.114.158 – 10.0.114.159	10.0.114.159
81	10.0.114.160/31	10.0.114.160 – 10.0.114.161	10.0.114.161
82	10.0.114.162/31	10.0.114.162 – 10.0.114.163	10.0.114.163
83	10.0.114.164/31	10.0.114.164 – 10.0.114.165	10.0.114.165
84	10.0.114.166/31	10.0.114.166 – 10.0.114.167	10.0.114.167
85	10.0.114.168/31	10.0.114.168 – 10.0.114.169	10.0.114.169
86	10.0.114.170/31	10.0.114.170 – 10.0.114.171	10.0.114.171
87	10.0.114.172/31	10.0.114.172 – 10.0.114.173	10.0.114.173
88	10.0.114.174/31	10.0.114.174 – 10.0.114.175	10.0.114.175
89	10.0.114.176/31	10.0.114.176 – 10.0.114.177	10.0.114.177
90	10.0.114.178/31	10.0.114.178 – 10.0.114.179	10.0.114.179
91	10.0.114.180/31	10.0.114.180 – 10.0.114.181	10.0.114.181
92	10.0.114.182/31	10.0.114.182 – 10.0.114.183	10.0.114.183
93	10.0.114.184/31	10.0.114.184 – 10.0.114.185	10.0.114.185
94	10.0.114.186/31	10.0.114.186 – 10.0.114.187	10.0.114.187
95	10.0.114.188/31	10.0.114.188 – 10.0.114.189	10.0.114.189
96	10.0.114.190/31	10.0.114.190 – 10.0.114.191	10.0.114.191
97	10.0.114.192/31	10.0.114.192 – 10.0.114.193	10.0.114.193
98	10.0.114.194/31	10.0.114.194 – 10.0.114.195	10.0.114.195
99	10.0.114.196/31	10.0.114.196 – 10.0.114.197	10.0.114.197
100	10.0.114.198/31	10.0.114.198 – 10.0.114.199	10.0.114.199
101	10.0.114.200/31	10.0.114.200 – 10.0.114.201	10.0.114.201
102	10.0.114.202/31	10.0.114.202 – 10.0.114.203	10.0.114.203
103	10.0.114.204/31	10.0.114.204 – 10.0.114.205	10.0.114.205
104	10.0.114.206/31	10.0.114.206 – 10.0.114.207	10.0.114.207
105	10.0.114.208/31	10.0.114.208 – 10.0.114.209	10.0.114.209
106	10.0.114.210/31	10.0.114.210 – 10.0.114.211	10.0.114.211
107	10.0.114.212/31	10.0.114.212 – 10.0.114.213	10.0.114.213
108	10.0.114.214/31	10.0.114.214 – 10.0.114.215	10.0.114.215
109	10.0.114.216/31	10.0.114.216 – 10.0.114.217	10.0.114.217
110	10.0.114.218/31	10.0.114.218 – 10.0.114.219	10.0.114.219
111	10.0.114.220/31	10.0.114.220 – 10.0.114.221	10.0.114.221
112	10.0.114.222/31	10.0.114.222 – 10.0.114.223	10.0.114.223
113	10.0.114.224/31	10.0.114.224 – 10.0.114.225	10.0.114.225
114	10.0.114.226/31	10.0.114.226 – 10.0.114.227	10.0.114.227
115	10.0.114.228/31	10.0.114.228 – 10.0.114.229	10.0.114.229
116	10.0.114.230/31	10.0.114.230 – 10.0.114.231	10.0.114.231
117	10.0.114.232/31	10.0.114.232 – 10.0.114.233	10.0.114.233
118	10.0.114.234/31	10.0.114.234 – 10.0.114.235	10.0.114.235
119	10.0.114.236/31	10.0.114.236 – 10.0.114.237	10.0.114.237
120	10.0.114.238/31	10.0.114.238 – 10.0.114.239	10.0.114.239
121	10.0.114.240/31	10.0.114.240 – 10.0.114.241	10.0.114.241
122	10.0.114.242/31	10.0.114.242 – 10.0.114.243	10.0.114.243
123	10.0.114.244/31	10.0.114.244 – 10.0.114.245	10.0.114.245
124	10.0.114.246/31	10.0.114.246 – 10.0.114.247	10.0.114.247
125	10.0.114.248/31	10.0.114.248 – 10.0.114.249	10.0.114.249
126	10.0.114.250/31	10.0.114.250 – 10.0.114.251	10.0.114.251
127	10.0.114.252/31	10.0.114.252 – 10.0.114.253	10.0.114.253
128	10.0.114.254/31	10.0.114.254 – 10.0.114.255	10.0.114.255

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.

Learn how to work it out →