Productive ToolboxLatency Calculator
Estimate network latency, propagation delay, transmission delay, round-trip time (RTT), and gaming ping. Free online latency calculator for networking, gaming, cloud, and DevOps.
Latency Calculator
Estimate propagation delay, transmission delay, RTT, and gaming ping based on distance, medium, and bandwidth. We do not collect or store what you enter.
Network Parameters
Standard Ethernet MTU = 1500 bytes
Simulates router hops, congestion, and protocol overhead.
Press Esc to reset
Basic Latency Estimate
Region Presets
Cloud Provider Presets
Bandwidth Presets
Calculation Results
Related tools
Frequently Asked Questions
What is propagation delay?
Propagation delay is the time it takes for a signal to travel from the sender to the receiver across a physical medium. It depends purely on distance and the signal speed of the medium — not on bandwidth.
What is transmission delay?
Transmission delay is the time required to push all bits of a packet onto the wire. It depends on packet size and bandwidth: a larger packet or a slower link increases this delay.
What is RTT (round-trip time)?
RTT is the total time for a signal to travel from source to destination and back. It is approximately twice the one-way latency and is what tools like 'ping' measure.
Why is satellite latency so high?
Geostationary satellites orbit at ~35,786 km above Earth. A signal must travel up to the satellite and back down, adding roughly 240 ms of propagation delay each way — before any processing or routing time.
What causes gaming lag?
Gaming lag is caused by a combination of propagation delay (distance to server), transmission delay (packet size vs bandwidth), routing overhead (number of network hops), and server processing time. This calculator estimates the network component.
How does routing overhead affect latency?
Real-world packets don't travel in straight lines. They pass through multiple routers, cross different ISP networks, and can experience congestion. The routing overhead slider simulates this additional delay as a percentage of propagation delay.
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