Developer Tools
IP Subnet Calculator
Description
Network Input
/
CIDR Quick Reference
| CIDR | Subnet Mask | Usable Hosts | Description |
|---|---|---|---|
| /8 | 255.0.0.0 | 16,777,214 | Class A (Large Enterprise) |
| /16 | 255.255.0.0 | 65,534 | Class B (Medium Enterprise) |
| /24 | 255.255.255.0 | 254 | Class C (Small Network) |
| /25 | 255.255.255.128 | 126 | Half Class C |
| /26 | 255.255.255.192 | 62 | Quarter Class C |
| /27 | 255.255.255.224 | 30 | Small Network |
| /28 | 255.255.255.240 | 14 | Very Small Network |
| /30 | 255.255.255.252 | 2 | Point-to-Point Link |
| /32 | 255.255.255.255 | 1 | Single Host |
Why Use IP Subnet Calculator?
- ✓100% Free - No hidden costs or premium features
- ✓No Signup Required - Start using instantly without creating an account
- ✓Privacy First - All processing happens in your browser. Your data never leaves your device
- ✓Lightning Fast - Instant results with no server delays
How to Use
- Enter or paste your text in the input area above
- The tool will automatically process your input
- Copy the result or download it as a file
Features
- ✓IPv4 subnet calculation
- ✓CIDR and subnet mask conversion
- ✓Network and broadcast address
- ✓Usable host range calculation
- ✓Quick CIDR presets reference
- ✓Private/Public IP detection