Tools.

TCP Throughput Calculator

Based on the Mathis et al. formula: throughput ≤ (MSS/RTT) × (C/√Loss) where C=1

Bandwidth-Delay Product (BDP) Calculator

Calculate the amount of data that can be in transit on a network connection at any given time.
BDP = Bandwidth × RTT

TCP Window Size Calculator

Calculate the required TCP receive window size to fully utilize a link.
Window ≥ Bandwidth × RTT

UDP Throughput Calculator

UDP is connectionless and has no flow control or congestion control. Maximum throughput is typically limited only by available bandwidth.

MTU/MSS Calculator

Calculate optimal MTU and MSS values for network configuration.
MSS = MTU - 40 (TCP+IP headers)

Packet Transit Time Calculator

Calculate how long it takes for a packet to traverse a network link.

Network Latency Calculator

Estimate end-to-end latency based on hops, distance, and processing delays.

Bandwidth Converter

Convert between different bandwidth units.

Subnet Calculator

WHOIS / RDAP lookup

Look up Internet registration data directly at Registro.br or LACNIC using HTTPS RDAP.

Runs in your browser. The selected registry receives your query and IP address. No backend or API key is used. RDAP returns structured registration data rather than raw port-43 WHOIS text.

Registro.br: .br domains and Brazilian IP/ASN resources. LACNIC: Latin American and Caribbean IP/ASN resources; referrals may lead to another registry. Public records may be redacted or rate limited.

QoS/DSCP Mapping Calculator

Map between DSCP, IP Precedence, ToS, and 802.1p (CoS) values.

Protocol Overhead Calculator

Calculate protocol overhead for different layer 2/3/4 encapsulations.

IP Fragmentation Calculator

Calculate how an IP packet gets fragmented across different MTUs.

Jitter Calculator

Estimate jitter impact on voice/video quality. Jitter is the variation in packet delay.