SUBNETTIDY · THE NETWORK WORKSPACE

IPv4 ক্যালকুলেটর · IPv6 ক্যালকুলেটর

ব্রাউজারেই গণনা। অ্যাকাউন্ট বা IP আপলোড নয়।

Primary controls: বাংলা. Detailed guidance and some secondary labels are in English.

IPv4

IPv4 ক্যালকুলেটর

/24
/0/16/32

Press Enter to calculate.

ব্রাউজারেই গণনা। অ্যাকাউন্ট বা IP আপলোড নয়।

ফলাফল
32 BITS · 4 OCTETS

See the boundary, bit by bit.

Blue bits identify the network. Gray bits identify the host. Change the prefix to see the boundary move.

Network bits 24Host bits 8

রপ্তানি

Downloads stay on your device. No server storage.

01

Calculate with confidence.

Start with an IP address or mask. See the network boundary, address range and exact counts together.

02

Build a plan that fits.

Allocate VLSM blocks, spot overlapping ranges and combine CIDRs without expanding the address space.

03

Understand the result.

Explore binary boundaries, read concise guides and practice with step-by-step solutions. Export when you are ready.

THE QUICK REFERENCE

IPv4 at a glance.

Prefix, mask, and capacity.

CIDRসাবনেট মাস্কমোট ঠিকানাব্যবহারযোগ্য ঠিকানা
/00.0.0.0৪,২৯,৪৯,৬৭,২৯৬৪,২৯,৪৯,৬৭,২৯৪
/1128.0.0.0২,১৪,৭৪,৮৩,৬৪৮২,১৪,৭৪,৮৩,৬৪৬
/2192.0.0.0১,০৭,৩৭,৪১,৮২৪১,০৭,৩৭,৪১,৮২২
/3224.0.0.0৫৩,৬৮,৭০,৯১২৫৩,৬৮,৭০,৯১০
/4240.0.0.0২৬,৮৪,৩৫,৪৫৬২৬,৮৪,৩৫,৪৫৪
/5248.0.0.0১৩,৪২,১৭,৭২৮১৩,৪২,১৭,৭২৬
/6252.0.0.0৬,৭১,০৮,৮৬৪৬,৭১,০৮,৮৬২
/7254.0.0.0৩,৩৫,৫৪,৪৩২৩,৩৫,৫৪,৪৩০
/8255.0.0.0১,৬৭,৭৭,২১৬১,৬৭,৭৭,২১৪
/9255.128.0.0৮৩,৮৮,৬০৮৮৩,৮৮,৬০৬
/10255.192.0.0৪১,৯৪,৩০৪৪১,৯৪,৩০২
/11255.224.0.0২০,৯৭,১৫২২০,৯৭,১৫০
/12255.240.0.0১০,৪৮,৫৭৬১০,৪৮,৫৭৪
/13255.248.0.0৫,২৪,২৮৮৫,২৪,২৮৬
/14255.252.0.0২,৬২,১৪৪২,৬২,১৪২
/15255.254.0.0১,৩১,০৭২১,৩১,০৭০
/16255.255.0.0৬৫,৫৩৬৬৫,৫৩৪
/17255.255.128.0৩২,৭৬৮৩২,৭৬৬
/18255.255.192.0১৬,৩৮৪১৬,৩৮২
/19255.255.224.0৮,১৯২৮,১৯০
/20255.255.240.0৪,০৯৬৪,০৯৪
/21255.255.248.0২,০৪৮২,০৪৬
/22255.255.252.0১,০২৪১,০২২
/23255.255.254.0৫১২৫১০
/24255.255.255.0২৫৬২৫৪
/25255.255.255.128১২৮১২৬
/26255.255.255.192৬৪৬২
/27255.255.255.224৩২৩০
/28255.255.255.240১৬১৪
/29255.255.255.248৮৬
/30255.255.255.252৪২
/31 *255.255.255.254২২
/32 *255.255.255.255১১

/31 assumes a point-to-point link. /32 is a single address. Counts do not exclude special-purpose address ranges.

Questions, answered.

Are my IP addresses sent to a server?

The calculators run entirely inside your browser. Entered addresses and network names are not uploaded or saved by SubnetTidy. Advertising and optional analytics make separate requests; they do not receive calculation inputs through our code.

How are /31, /32 and IPv6 handled?

IPv4 /31 uses the two-endpoint point-to-point interpretation in RFC 3021. A /32 is one address. IPv6 uses exact 128-bit arithmetic and does not subtract an IPv4-style network/broadcast pair.

Can I export my work?

Use Copy or Export for local text, JSON and CSV results. Nothing is automatically saved. VLSM exports the full plan; subnet splitting exports only the current page. Close the tab only after exporting results you need.

Does the tool check live network connectivity?

No. It performs address arithmetic and planning. It does not scan hosts, check routing, change devices or verify whether an IP is publicly reachable. Validate real deployments against your own network and provider rules.