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)10.0.113.0/24

network10.0.113.0/24

broadcast10.0.113.255

first host10.0.113.1

last host10.0.113.254

subnet mask255.255.255.0

wildcard0.0.0.255

addresses256

usable hosts254

classA

ipcalc 10.0.113.0/24

address00001010.00000000.01110001.00000000

subnet mask11111111.11111111.11111111.00000000

network00001010.00000000.01110001.00000000

broadcast00001010.00000000.01110001.11111111

green = network part, grey = host part

hex0x0a007100

decimal167801088

reverse dns0.113.0.10.in-addr.arpa

ipv4-mapped::ffff:a00:7100

/24 split into /32 · 256 subnets

close ×

#	network	host range	broadcast
1	10.0.113.0/32	10.0.113.0 – 10.0.113.0	10.0.113.0
2	10.0.113.1/32	10.0.113.1 – 10.0.113.1	10.0.113.1
3	10.0.113.2/32	10.0.113.2 – 10.0.113.2	10.0.113.2
4	10.0.113.3/32	10.0.113.3 – 10.0.113.3	10.0.113.3
5	10.0.113.4/32	10.0.113.4 – 10.0.113.4	10.0.113.4
6	10.0.113.5/32	10.0.113.5 – 10.0.113.5	10.0.113.5
7	10.0.113.6/32	10.0.113.6 – 10.0.113.6	10.0.113.6
8	10.0.113.7/32	10.0.113.7 – 10.0.113.7	10.0.113.7
9	10.0.113.8/32	10.0.113.8 – 10.0.113.8	10.0.113.8
10	10.0.113.9/32	10.0.113.9 – 10.0.113.9	10.0.113.9
11	10.0.113.10/32	10.0.113.10 – 10.0.113.10	10.0.113.10
12	10.0.113.11/32	10.0.113.11 – 10.0.113.11	10.0.113.11
13	10.0.113.12/32	10.0.113.12 – 10.0.113.12	10.0.113.12
14	10.0.113.13/32	10.0.113.13 – 10.0.113.13	10.0.113.13
15	10.0.113.14/32	10.0.113.14 – 10.0.113.14	10.0.113.14
16	10.0.113.15/32	10.0.113.15 – 10.0.113.15	10.0.113.15
17	10.0.113.16/32	10.0.113.16 – 10.0.113.16	10.0.113.16
18	10.0.113.17/32	10.0.113.17 – 10.0.113.17	10.0.113.17
19	10.0.113.18/32	10.0.113.18 – 10.0.113.18	10.0.113.18
20	10.0.113.19/32	10.0.113.19 – 10.0.113.19	10.0.113.19
21	10.0.113.20/32	10.0.113.20 – 10.0.113.20	10.0.113.20
22	10.0.113.21/32	10.0.113.21 – 10.0.113.21	10.0.113.21
23	10.0.113.22/32	10.0.113.22 – 10.0.113.22	10.0.113.22
24	10.0.113.23/32	10.0.113.23 – 10.0.113.23	10.0.113.23
25	10.0.113.24/32	10.0.113.24 – 10.0.113.24	10.0.113.24
26	10.0.113.25/32	10.0.113.25 – 10.0.113.25	10.0.113.25
27	10.0.113.26/32	10.0.113.26 – 10.0.113.26	10.0.113.26
28	10.0.113.27/32	10.0.113.27 – 10.0.113.27	10.0.113.27
29	10.0.113.28/32	10.0.113.28 – 10.0.113.28	10.0.113.28
30	10.0.113.29/32	10.0.113.29 – 10.0.113.29	10.0.113.29
31	10.0.113.30/32	10.0.113.30 – 10.0.113.30	10.0.113.30
32	10.0.113.31/32	10.0.113.31 – 10.0.113.31	10.0.113.31
33	10.0.113.32/32	10.0.113.32 – 10.0.113.32	10.0.113.32
34	10.0.113.33/32	10.0.113.33 – 10.0.113.33	10.0.113.33
35	10.0.113.34/32	10.0.113.34 – 10.0.113.34	10.0.113.34
36	10.0.113.35/32	10.0.113.35 – 10.0.113.35	10.0.113.35
37	10.0.113.36/32	10.0.113.36 – 10.0.113.36	10.0.113.36
38	10.0.113.37/32	10.0.113.37 – 10.0.113.37	10.0.113.37
39	10.0.113.38/32	10.0.113.38 – 10.0.113.38	10.0.113.38
40	10.0.113.39/32	10.0.113.39 – 10.0.113.39	10.0.113.39
41	10.0.113.40/32	10.0.113.40 – 10.0.113.40	10.0.113.40
42	10.0.113.41/32	10.0.113.41 – 10.0.113.41	10.0.113.41
43	10.0.113.42/32	10.0.113.42 – 10.0.113.42	10.0.113.42
44	10.0.113.43/32	10.0.113.43 – 10.0.113.43	10.0.113.43
45	10.0.113.44/32	10.0.113.44 – 10.0.113.44	10.0.113.44
46	10.0.113.45/32	10.0.113.45 – 10.0.113.45	10.0.113.45
47	10.0.113.46/32	10.0.113.46 – 10.0.113.46	10.0.113.46
48	10.0.113.47/32	10.0.113.47 – 10.0.113.47	10.0.113.47
49	10.0.113.48/32	10.0.113.48 – 10.0.113.48	10.0.113.48
50	10.0.113.49/32	10.0.113.49 – 10.0.113.49	10.0.113.49
51	10.0.113.50/32	10.0.113.50 – 10.0.113.50	10.0.113.50
52	10.0.113.51/32	10.0.113.51 – 10.0.113.51	10.0.113.51
53	10.0.113.52/32	10.0.113.52 – 10.0.113.52	10.0.113.52
54	10.0.113.53/32	10.0.113.53 – 10.0.113.53	10.0.113.53
55	10.0.113.54/32	10.0.113.54 – 10.0.113.54	10.0.113.54
56	10.0.113.55/32	10.0.113.55 – 10.0.113.55	10.0.113.55
57	10.0.113.56/32	10.0.113.56 – 10.0.113.56	10.0.113.56
58	10.0.113.57/32	10.0.113.57 – 10.0.113.57	10.0.113.57
59	10.0.113.58/32	10.0.113.58 – 10.0.113.58	10.0.113.58
60	10.0.113.59/32	10.0.113.59 – 10.0.113.59	10.0.113.59
61	10.0.113.60/32	10.0.113.60 – 10.0.113.60	10.0.113.60
62	10.0.113.61/32	10.0.113.61 – 10.0.113.61	10.0.113.61
63	10.0.113.62/32	10.0.113.62 – 10.0.113.62	10.0.113.62
64	10.0.113.63/32	10.0.113.63 – 10.0.113.63	10.0.113.63
65	10.0.113.64/32	10.0.113.64 – 10.0.113.64	10.0.113.64
66	10.0.113.65/32	10.0.113.65 – 10.0.113.65	10.0.113.65
67	10.0.113.66/32	10.0.113.66 – 10.0.113.66	10.0.113.66
68	10.0.113.67/32	10.0.113.67 – 10.0.113.67	10.0.113.67
69	10.0.113.68/32	10.0.113.68 – 10.0.113.68	10.0.113.68
70	10.0.113.69/32	10.0.113.69 – 10.0.113.69	10.0.113.69
71	10.0.113.70/32	10.0.113.70 – 10.0.113.70	10.0.113.70
72	10.0.113.71/32	10.0.113.71 – 10.0.113.71	10.0.113.71
73	10.0.113.72/32	10.0.113.72 – 10.0.113.72	10.0.113.72
74	10.0.113.73/32	10.0.113.73 – 10.0.113.73	10.0.113.73
75	10.0.113.74/32	10.0.113.74 – 10.0.113.74	10.0.113.74
76	10.0.113.75/32	10.0.113.75 – 10.0.113.75	10.0.113.75
77	10.0.113.76/32	10.0.113.76 – 10.0.113.76	10.0.113.76
78	10.0.113.77/32	10.0.113.77 – 10.0.113.77	10.0.113.77
79	10.0.113.78/32	10.0.113.78 – 10.0.113.78	10.0.113.78
80	10.0.113.79/32	10.0.113.79 – 10.0.113.79	10.0.113.79
81	10.0.113.80/32	10.0.113.80 – 10.0.113.80	10.0.113.80
82	10.0.113.81/32	10.0.113.81 – 10.0.113.81	10.0.113.81
83	10.0.113.82/32	10.0.113.82 – 10.0.113.82	10.0.113.82
84	10.0.113.83/32	10.0.113.83 – 10.0.113.83	10.0.113.83
85	10.0.113.84/32	10.0.113.84 – 10.0.113.84	10.0.113.84
86	10.0.113.85/32	10.0.113.85 – 10.0.113.85	10.0.113.85
87	10.0.113.86/32	10.0.113.86 – 10.0.113.86	10.0.113.86
88	10.0.113.87/32	10.0.113.87 – 10.0.113.87	10.0.113.87
89	10.0.113.88/32	10.0.113.88 – 10.0.113.88	10.0.113.88
90	10.0.113.89/32	10.0.113.89 – 10.0.113.89	10.0.113.89
91	10.0.113.90/32	10.0.113.90 – 10.0.113.90	10.0.113.90
92	10.0.113.91/32	10.0.113.91 – 10.0.113.91	10.0.113.91
93	10.0.113.92/32	10.0.113.92 – 10.0.113.92	10.0.113.92
94	10.0.113.93/32	10.0.113.93 – 10.0.113.93	10.0.113.93
95	10.0.113.94/32	10.0.113.94 – 10.0.113.94	10.0.113.94
96	10.0.113.95/32	10.0.113.95 – 10.0.113.95	10.0.113.95
97	10.0.113.96/32	10.0.113.96 – 10.0.113.96	10.0.113.96
98	10.0.113.97/32	10.0.113.97 – 10.0.113.97	10.0.113.97
99	10.0.113.98/32	10.0.113.98 – 10.0.113.98	10.0.113.98
100	10.0.113.99/32	10.0.113.99 – 10.0.113.99	10.0.113.99
101	10.0.113.100/32	10.0.113.100 – 10.0.113.100	10.0.113.100
102	10.0.113.101/32	10.0.113.101 – 10.0.113.101	10.0.113.101
103	10.0.113.102/32	10.0.113.102 – 10.0.113.102	10.0.113.102
104	10.0.113.103/32	10.0.113.103 – 10.0.113.103	10.0.113.103
105	10.0.113.104/32	10.0.113.104 – 10.0.113.104	10.0.113.104
106	10.0.113.105/32	10.0.113.105 – 10.0.113.105	10.0.113.105
107	10.0.113.106/32	10.0.113.106 – 10.0.113.106	10.0.113.106
108	10.0.113.107/32	10.0.113.107 – 10.0.113.107	10.0.113.107
109	10.0.113.108/32	10.0.113.108 – 10.0.113.108	10.0.113.108
110	10.0.113.109/32	10.0.113.109 – 10.0.113.109	10.0.113.109
111	10.0.113.110/32	10.0.113.110 – 10.0.113.110	10.0.113.110
112	10.0.113.111/32	10.0.113.111 – 10.0.113.111	10.0.113.111
113	10.0.113.112/32	10.0.113.112 – 10.0.113.112	10.0.113.112
114	10.0.113.113/32	10.0.113.113 – 10.0.113.113	10.0.113.113
115	10.0.113.114/32	10.0.113.114 – 10.0.113.114	10.0.113.114
116	10.0.113.115/32	10.0.113.115 – 10.0.113.115	10.0.113.115
117	10.0.113.116/32	10.0.113.116 – 10.0.113.116	10.0.113.116
118	10.0.113.117/32	10.0.113.117 – 10.0.113.117	10.0.113.117
119	10.0.113.118/32	10.0.113.118 – 10.0.113.118	10.0.113.118
120	10.0.113.119/32	10.0.113.119 – 10.0.113.119	10.0.113.119
121	10.0.113.120/32	10.0.113.120 – 10.0.113.120	10.0.113.120
122	10.0.113.121/32	10.0.113.121 – 10.0.113.121	10.0.113.121
123	10.0.113.122/32	10.0.113.122 – 10.0.113.122	10.0.113.122
124	10.0.113.123/32	10.0.113.123 – 10.0.113.123	10.0.113.123
125	10.0.113.124/32	10.0.113.124 – 10.0.113.124	10.0.113.124
126	10.0.113.125/32	10.0.113.125 – 10.0.113.125	10.0.113.125
127	10.0.113.126/32	10.0.113.126 – 10.0.113.126	10.0.113.126
128	10.0.113.127/32	10.0.113.127 – 10.0.113.127	10.0.113.127
129	10.0.113.128/32	10.0.113.128 – 10.0.113.128	10.0.113.128
130	10.0.113.129/32	10.0.113.129 – 10.0.113.129	10.0.113.129
131	10.0.113.130/32	10.0.113.130 – 10.0.113.130	10.0.113.130
132	10.0.113.131/32	10.0.113.131 – 10.0.113.131	10.0.113.131
133	10.0.113.132/32	10.0.113.132 – 10.0.113.132	10.0.113.132
134	10.0.113.133/32	10.0.113.133 – 10.0.113.133	10.0.113.133
135	10.0.113.134/32	10.0.113.134 – 10.0.113.134	10.0.113.134
136	10.0.113.135/32	10.0.113.135 – 10.0.113.135	10.0.113.135
137	10.0.113.136/32	10.0.113.136 – 10.0.113.136	10.0.113.136
138	10.0.113.137/32	10.0.113.137 – 10.0.113.137	10.0.113.137
139	10.0.113.138/32	10.0.113.138 – 10.0.113.138	10.0.113.138
140	10.0.113.139/32	10.0.113.139 – 10.0.113.139	10.0.113.139
141	10.0.113.140/32	10.0.113.140 – 10.0.113.140	10.0.113.140
142	10.0.113.141/32	10.0.113.141 – 10.0.113.141	10.0.113.141
143	10.0.113.142/32	10.0.113.142 – 10.0.113.142	10.0.113.142
144	10.0.113.143/32	10.0.113.143 – 10.0.113.143	10.0.113.143
145	10.0.113.144/32	10.0.113.144 – 10.0.113.144	10.0.113.144
146	10.0.113.145/32	10.0.113.145 – 10.0.113.145	10.0.113.145
147	10.0.113.146/32	10.0.113.146 – 10.0.113.146	10.0.113.146
148	10.0.113.147/32	10.0.113.147 – 10.0.113.147	10.0.113.147
149	10.0.113.148/32	10.0.113.148 – 10.0.113.148	10.0.113.148
150	10.0.113.149/32	10.0.113.149 – 10.0.113.149	10.0.113.149
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210	10.0.113.209/32	10.0.113.209 – 10.0.113.209	10.0.113.209
211	10.0.113.210/32	10.0.113.210 – 10.0.113.210	10.0.113.210
212	10.0.113.211/32	10.0.113.211 – 10.0.113.211	10.0.113.211
213	10.0.113.212/32	10.0.113.212 – 10.0.113.212	10.0.113.212
214	10.0.113.213/32	10.0.113.213 – 10.0.113.213	10.0.113.213
215	10.0.113.214/32	10.0.113.214 – 10.0.113.214	10.0.113.214
216	10.0.113.215/32	10.0.113.215 – 10.0.113.215	10.0.113.215
217	10.0.113.216/32	10.0.113.216 – 10.0.113.216	10.0.113.216
218	10.0.113.217/32	10.0.113.217 – 10.0.113.217	10.0.113.217
219	10.0.113.218/32	10.0.113.218 – 10.0.113.218	10.0.113.218
220	10.0.113.219/32	10.0.113.219 – 10.0.113.219	10.0.113.219
221	10.0.113.220/32	10.0.113.220 – 10.0.113.220	10.0.113.220
222	10.0.113.221/32	10.0.113.221 – 10.0.113.221	10.0.113.221
223	10.0.113.222/32	10.0.113.222 – 10.0.113.222	10.0.113.222
224	10.0.113.223/32	10.0.113.223 – 10.0.113.223	10.0.113.223
225	10.0.113.224/32	10.0.113.224 – 10.0.113.224	10.0.113.224
226	10.0.113.225/32	10.0.113.225 – 10.0.113.225	10.0.113.225
227	10.0.113.226/32	10.0.113.226 – 10.0.113.226	10.0.113.226
228	10.0.113.227/32	10.0.113.227 – 10.0.113.227	10.0.113.227
229	10.0.113.228/32	10.0.113.228 – 10.0.113.228	10.0.113.228
230	10.0.113.229/32	10.0.113.229 – 10.0.113.229	10.0.113.229
231	10.0.113.230/32	10.0.113.230 – 10.0.113.230	10.0.113.230
232	10.0.113.231/32	10.0.113.231 – 10.0.113.231	10.0.113.231
233	10.0.113.232/32	10.0.113.232 – 10.0.113.232	10.0.113.232
234	10.0.113.233/32	10.0.113.233 – 10.0.113.233	10.0.113.233
235	10.0.113.234/32	10.0.113.234 – 10.0.113.234	10.0.113.234
236	10.0.113.235/32	10.0.113.235 – 10.0.113.235	10.0.113.235
237	10.0.113.236/32	10.0.113.236 – 10.0.113.236	10.0.113.236
238	10.0.113.237/32	10.0.113.237 – 10.0.113.237	10.0.113.237
239	10.0.113.238/32	10.0.113.238 – 10.0.113.238	10.0.113.238
240	10.0.113.239/32	10.0.113.239 – 10.0.113.239	10.0.113.239
241	10.0.113.240/32	10.0.113.240 – 10.0.113.240	10.0.113.240
242	10.0.113.241/32	10.0.113.241 – 10.0.113.241	10.0.113.241
243	10.0.113.242/32	10.0.113.242 – 10.0.113.242	10.0.113.242
244	10.0.113.243/32	10.0.113.243 – 10.0.113.243	10.0.113.243
245	10.0.113.244/32	10.0.113.244 – 10.0.113.244	10.0.113.244
246	10.0.113.245/32	10.0.113.245 – 10.0.113.245	10.0.113.245
247	10.0.113.246/32	10.0.113.246 – 10.0.113.246	10.0.113.246
248	10.0.113.247/32	10.0.113.247 – 10.0.113.247	10.0.113.247
249	10.0.113.248/32	10.0.113.248 – 10.0.113.248	10.0.113.248
250	10.0.113.249/32	10.0.113.249 – 10.0.113.249	10.0.113.249
251	10.0.113.250/32	10.0.113.250 – 10.0.113.250	10.0.113.250
252	10.0.113.251/32	10.0.113.251 – 10.0.113.251	10.0.113.251
253	10.0.113.252/32	10.0.113.252 – 10.0.113.252	10.0.113.252
254	10.0.113.253/32	10.0.113.253 – 10.0.113.253	10.0.113.253
255	10.0.113.254/32	10.0.113.254 – 10.0.113.254	10.0.113.254
256	10.0.113.255/32	10.0.113.255 – 10.0.113.255	10.0.113.255

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 →