Technology & Computing
Network Latency & Bandwidth-Delay Product (BDP) Calculator
Calculate the bandwidth-delay product to size TCP buffers and understand the impact of latency on throughput.
Your inputs
Change any value to update the result instantly.
Bandwidth-delay product
62,50,000 bytes
Recommended TCP window/buffer
6,103.5156 KB
BDP in bits
5,00,00,000 bits
Round-trip time
50 ms
If the TCP window is smaller than the BDP, the connection cannot fill the pipe and throughput will fall below the link's rated capacity.
Formula and working
BDP (bits) = Bandwidth (bps) × RTT (s); Recommended buffer (bytes) = BDP ÷ 8
- 1
Collect the inputs
Link bandwidth (Mbps) = 1,000; Round-trip time (ms) = 50
- 2
Apply the formula
BDP (bits) = Bandwidth (bps) × RTT (s); Recommended buffer (bytes) = BDP ÷ 8
- 3
Result
Bandwidth-delay product = 6,250,000 bytes
Frequently asked questions
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
Report a mistake or request an improvement
Tell us if a formula, unit, explanation, or result needs attention. Your message will include this calculator’s name and page.
Related calculators
TCP Window Size & Throughput Ceiling Calculator
Estimate the maximum achievable TCP throughput on a lossy path using the Mathis equation.
Bandwidth vs Download/Upload Transfer Time Sizer
Calculate how long a file transfer will take given a connection's advertised bandwidth in bits per second.
IPv4 CIDR Subnet Calculator
Work out the subnet mask, wildcard mask, usable hosts and broadcast range for any IPv4 CIDR prefix.
IPv4 to Decimal & IPv6 Hextet Formatter
Convert an IPv4 dotted address into its 32-bit decimal and hexadecimal form for scripting and ACLs.
IPv6 Subnetting & Prefix Sizer
Estimate how many /48, /56 or /64 subnets fit inside a given IPv6 allocation and vice versa.
API Rate Limiter Token Bucket & Leaky Bucket Sizer
Size a token bucket or leaky bucket rate limiter to sustain an average request rate while tolerating bursts.