Subnet Calculator +
Simple Subnet Calculations
Free · In‑App Purchases
SubnetCalc is a fast, intuitive subnet calculator for networking professionals and students.
Features:
- IPv4 subnet calculator with live CIDR slider (1-30)
- Subnet Splitter for equal-split and VLSM subdivision
- IPv6 calculator with prefix slider (1-128)
- Auto-detect your device's IP and subnet from Wi-Fi
- Navigate between adjacent subnets
- Share or copy results instantly
- Native Mac support via Mac Catalyst
Enter any IP address, adjust the CIDR prefix with the slider, and instantly see:
- Subnet mask
- Network address
- Broadcast address
- Usable host range
- Maximum hosts
- Wildcard mask
The Subnet Splitter lets you divide a network into equal subnets or use VLSM to allocate subnets by host count. Perfect for network planning and design.
No ads. No tracking. No subscription.
What's New in SubnetCalc 4.0:
- New IPv6 Calculator tab with full prefix support (1-128)
- New Subnet Splitter with equal-split and VLSM modes
- Tip Jar to support development
- Code modernization and bug fixes
The developer, Steven Eppler, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Steven Eppler
- Size
- 666.6 KB
- Category
- Utilities
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - iPad
Requires iPadOS 18.6 or later. - Mac
Requires macOS 15.6 or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Large Tip $4.99
- Medium Tip $1.99
- Small Tip $0.99
- Huge Tip $9.99
- Copyright
- © 2011-2026 Eppler Software