# Video latency budget calculator

> Estimate a video latency budget from generation, network, buffering and decoding. See each component's share and plan a measurable response-time target.

Source: https://windflow.online/tools/video-latency-calculator · Windflow Labs

Free browser tool; no account required.

## How it works

Add your estimated model delay, one-way transport time, playback buffer and decode/display delay. This planning budget uses inputs you supply; the result is an estimate. Control acknowledgements and generation-window boundaries can add delay that needs separate measurement.

1. Enter estimates for generation and one-way network delay.
2. Specify buffered frames, playback FPS and decoding/display time.
3. Use the component breakdown to choose what to measure and reduce first.

## FAQ

### How do I calculate a video latency budget?

Add generation delay, one-way transport delay, buffering and decode/display time. Measure the end-to-end visible result separately to confirm the estimate.

### Can I use ping as the one-way transport delay?

Ping reports round-trip time. Half of it is only an approximation of one-way latency and depends on route symmetry and other conditions.

## Related resources

- [Measure visible response](https://windflow.online/guides/measure-realtime-video-latency)
- [Streaming transport choices](https://windflow.online/guides/stream-video-diffusion-webrtc-websocket)