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IP Calculator

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IPv4 & Network Suite

All-in-One IP Calculator

Calculate IPv4 subnets, convert between CIDR prefixes and IP ranges (IPv4/IPv6), split & aggregate CIDRs, enumerate addresses, and estimate IPv4 market prices in one clean interface.

Estimate IPv4 Costs
Choose action, calculation mode, currency, RIR and subnet size or custom IPv4 amount.
I want to
Calculate by
Currency
Price per IP
—
Lease · RIPE · /24
IPv4 Amount
256
selected subnet size
Estimated Total
—
monthly estimate
Pricing Tier
/24
RIPE · Lease
Browse IPv4 Marketplace Talk to Our Team
Lease prices are based primarily on current median listings and available size tiers. Final cost depends on block availability and terms.
IPv4 Subnet Calculator
Enter an IPv4 address and CIDR prefix (or dotted subnet mask) to calculate network range details.
Equivalent: 255.255.255.0 (/24)
Network Address
192.168.1.0
CIDR: 192.168.1.0/24
Broadcast Address
192.168.1.255
Highest block address
Total IP Count
256
Addresses in subnet
Usable Host IPs
254
Traditional usable hosts
Property Value Action
First Usable Host 192.168.1.1
Last Usable Host 192.168.1.254
Subnet Mask 255.255.255.0
Wildcard Mask 0.0.0.255
🔍 View Subnet Bit Breakdown & Binary Structure
Network Prefix Bits
24 bits
Classless subnet prefix
Host Bits
8 bits
Available for host addressing
Addresses per Subnet
256
Addresses per block
32-Bit Binary Mask Structure
11111111.11111111.11111111.00000000
■ Blue = Network Bits (24)  |  ■ Muted = Host Bits (8)
Address Count → Smallest Suitable CIDR
Find the smallest subnet block that accommodates your required number of IP addresses or host devices.
Calculates smallest subnet covering required host devices (excluding network/broadcast addresses).
Recommended CIDR
/23
Mask: 255.255.254.0
Total Subnet Capacity
512
510 usable hosts capacity
Usable Host Capacity
510
Available for host devices
Host Efficiency / Overhead
98.0%
10 usable host slots unused (2.0% overhead)
IP / CIDR / Range Containment Checker
Check if a target IP address, CIDR block, or explicit IP range (e.g. 163.5.117.50-163.5.117.60) is contained inside a parent subnet.
Containment Status
✅ Fully Contained
Target lies entirely within parent block
Target Address Span
10.0.5.10 - 10.0.5.50
41 IP addresses
Parent Utilization
0.06%
Occupied proportion of parent
CIDR ↔ IP Range Converter
Supports both IPv4 and IPv6 with automatic protocol detection. Convert CIDR blocks to IP ranges or convert start/end IP ranges into minimal CIDR sets.
Conversion Mode
First Address
192.0.2.0
Network / First address
Broadcast Address
192.0.2.255
Broadcast / Last address
Total Addresses IPv4
256
254 usable host addresses
CIDR Address Enumerator
Enumerate individual IP addresses inside a CIDR block with smart performance safeguards.
Address List (8 IPs)
Copy Raw IP Addresses (1 per line)
Copy IPs + Address Type
Export TXT (Plain IP List)
Export CSV (Single Column)
Export CSV (IP + Type + Index)
Subnet Splitter
Divide a larger parent subnet block into equal-sized child subnets.
Generated Subnets (4 subnets)
Subnet CIDR Network Address Broadcast / End Usable Hosts Action
CIDR Aggregator / Merger
Combine a list of individual IP addresses or CIDR blocks into the minimal set of optimal CIDR prefixes.
Merged CIDR Blocks (2 optimal CIDRs)
Merged 4 input items into 2 minimal CIDRs (50% reduction).
CIDR / Subnet Reference Table
IPv4 subnet specifications from /32 (single host) down to /0 (entire IPv4 internet). Click any row action to calculate, split, or enumerate.
CIDR Prefix Subnet Mask Total IPv4 Addresses Usable Hosts Equivalent /24 Networks Actions
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