🧮 IP Calculator
Subnet calculation, ranges, masks and CIDR notation
Subnet Mask Selector
Network
| CIDR Notation | 172.16.0.0/18 |
| Network Address | 172.16.0.0 |
| Broadcast Address | 172.16.63.255 |
| First Host | 172.16.0.1 |
| Last Host | 172.16.63.254 |
Mask & Stats
| Subnet Mask | 255.255.192.0 |
| Wildcard Mask | 0.0.63.255 |
| Total Hosts | 16,384 |
| Usable Hosts | 16,382 |
| IP Class | Class B |
| Address Type | Private |
Binary Representation
IP IP in Binary
10101100.00010000.00000000.00000000
█ network bits
█ host bits
Mask in Binary
11111111.11111111.11000000.00000000
Subnet Splitter
| # | Subnet (/23) | Range | Broadcast Address | Usable Hosts |
|---|---|---|---|---|
| 1 | 172.16.0.0/23 | 172.16.0.1 — 172.16.1.254 | 172.16.1.255 | 510 |
| 2 | 172.16.2.0/23 | 172.16.2.1 — 172.16.3.254 | 172.16.3.255 | 510 |
| 3 | 172.16.4.0/23 | 172.16.4.1 — 172.16.5.254 | 172.16.5.255 | 510 |
| 4 | 172.16.6.0/23 | 172.16.6.1 — 172.16.7.254 | 172.16.7.255 | 510 |
| 5 | 172.16.8.0/23 | 172.16.8.1 — 172.16.9.254 | 172.16.9.255 | 510 |
| 6 | 172.16.10.0/23 | 172.16.10.1 — 172.16.11.254 | 172.16.11.255 | 510 |
| 7 | 172.16.12.0/23 | 172.16.12.1 — 172.16.13.254 | 172.16.13.255 | 510 |
| 8 | 172.16.14.0/23 | 172.16.14.1 — 172.16.15.254 | 172.16.15.255 | 510 |
| 9 | 172.16.16.0/23 | 172.16.16.1 — 172.16.17.254 | 172.16.17.255 | 510 |
| 10 | 172.16.18.0/23 | 172.16.18.1 — 172.16.19.254 | 172.16.19.255 | 510 |
| 11 | 172.16.20.0/23 | 172.16.20.1 — 172.16.21.254 | 172.16.21.255 | 510 |
| 12 | 172.16.22.0/23 | 172.16.22.1 — 172.16.23.254 | 172.16.23.255 | 510 |
| 13 | 172.16.24.0/23 | 172.16.24.1 — 172.16.25.254 | 172.16.25.255 | 510 |
| 14 | 172.16.26.0/23 | 172.16.26.1 — 172.16.27.254 | 172.16.27.255 | 510 |
| 15 | 172.16.28.0/23 | 172.16.28.1 — 172.16.29.254 | 172.16.29.255 | 510 |
| 16 | 172.16.30.0/23 | 172.16.30.1 — 172.16.31.254 | 172.16.31.255 | 510 |
| 17 | 172.16.32.0/23 | 172.16.32.1 — 172.16.33.254 | 172.16.33.255 | 510 |
| 18 | 172.16.34.0/23 | 172.16.34.1 — 172.16.35.254 | 172.16.35.255 | 510 |
| 19 | 172.16.36.0/23 | 172.16.36.1 — 172.16.37.254 | 172.16.37.255 | 510 |
| 20 | 172.16.38.0/23 | 172.16.38.1 — 172.16.39.254 | 172.16.39.255 | 510 |
| 21 | 172.16.40.0/23 | 172.16.40.1 — 172.16.41.254 | 172.16.41.255 | 510 |
| 22 | 172.16.42.0/23 | 172.16.42.1 — 172.16.43.254 | 172.16.43.255 | 510 |
| 23 | 172.16.44.0/23 | 172.16.44.1 — 172.16.45.254 | 172.16.45.255 | 510 |
| 24 | 172.16.46.0/23 | 172.16.46.1 — 172.16.47.254 | 172.16.47.255 | 510 |
| 25 | 172.16.48.0/23 | 172.16.48.1 — 172.16.49.254 | 172.16.49.255 | 510 |
| 26 | 172.16.50.0/23 | 172.16.50.1 — 172.16.51.254 | 172.16.51.255 | 510 |
| 27 | 172.16.52.0/23 | 172.16.52.1 — 172.16.53.254 | 172.16.53.255 | 510 |
| 28 | 172.16.54.0/23 | 172.16.54.1 — 172.16.55.254 | 172.16.55.255 | 510 |
| 29 | 172.16.56.0/23 | 172.16.56.1 — 172.16.57.254 | 172.16.57.255 | 510 |
| 30 | 172.16.58.0/23 | 172.16.58.1 — 172.16.59.254 | 172.16.59.255 | 510 |
| 31 | 172.16.60.0/23 | 172.16.60.1 — 172.16.61.254 | 172.16.61.255 | 510 |
| 32 | 172.16.62.0/23 | 172.16.62.1 — 172.16.63.254 | 172.16.63.255 | 510 |
Converter
IP → Integer
2886729728
Mask → CIDR
/ 18
Range (hex)
0xAC100000 — 0xAC103FFF
Quick Converter (no reload)
IP → Integer
Integer → IP
📊 Subnet Visualization
172.16.0.0
172.16.63.255
Network
▲ 172.16.0.0
Broadcast
Usable hosts: 16,382
Reserved: 2
your_ip
📋 Subnet Cheat Sheet
| CIDR | Mask | Hosts | Usage |
|---|---|---|---|
| /8 | 255.0.0.0 | 16,777,214 | Large Class A networks |
| /16 | 255.255.0.0 | 65,534 | Medium corporate networks |
| /24 | 255.255.255.0 | 254 | Typical home/office network |
| /25 | 255.255.255.128 | 126 | Half of /24 |
| /26 | 255.255.255.192 | 62 | Small department |
| /27 | 255.255.255.224 | 30 | Small office |
| /28 | 255.255.255.240 | 14 | Micro-segment |
| /29 | 255.255.255.248 | 6 | Point-to-point with hosts |
| /30 | 255.255.255.252 | 2 | Point-to-point link |
| /31 | 255.255.255.254 | 2 | P2P (RFC 3021) |
| /32 | 255.255.255.255 | 1 | Single host route |