--- title: "What is Interaction to Next Paint? Definition & Meaning" description: "Interaction to Next Paint (INP) is a Core Web Vital that measures the latency, in milliseconds, between a user interaction (click, tap, or key press) and..." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "DefinedTerm", "name": "Interaction to Next Paint", "description": "Interaction to Next Paint (INP) is a Core Web Vital that measures the latency, in milliseconds, between a user interaction (click, tap, or key press) and the next frame the browser paints in response.", "alternateName": "INP", "url": "https://www.pagespeedmatters.com/resources/glossary/interaction-to-next-paint", "inDefinedTermSet": { "@type": "DefinedTermSet", "name": "Web Performance Glossary", "url": "https://www.pagespeedmatters.com/resources/glossary" } }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.pagespeedmatters.com" }, { "@type": 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Squarespace Speed Optimization ](/services/squarespace-speed-optimization) [Book a Call](/contact) [Home](/) [Resources](/resources) [Glossary](/resources/glossary) Interaction to Next Paint Core Web Vitals · Glossary # Interaction to Next Paint (INP) ![Matt Suffoletto](/assets/matt-CEkmAuBN.jpg)Written by [Matt Suffoletto](/resources/author/matt-suffoletto) Published June 26, 2026 ![Interaction to Next Paint](/__l5e/assets-v1/7a5d8056-83f3-4f2d-a16e-d4dce126089f/gloss-hero-interaction-to-next-paint.png) Share [](https://twitter.com/intent/tweet?url=https%3A%2F%2Fwww.pagespeedmatters.com%2Fresources%2Fglossary%2Finteraction-to-next-paint&text=Interaction%20to%20Next%20Paint)[](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.pagespeedmatters.com%2Fresources%2Fglossary%2Finteraction-to-next-paint)[](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fwww.pagespeedmatters.com%2Fresources%2Fglossary%2Finteraction-to-next-paint)[](https://www.reddit.com/submit?url=https%3A%2F%2Fwww.pagespeedmatters.com%2Fresources%2Fglossary%2Finteraction-to-next-paint&title=Interaction%20to%20Next%20Paint) On This Page - [TL;DR](#tldr "TL;DR") - [What is Interaction to Next](#definition "What is Interaction to Next") - [Thresholds & Benchmarks](#thresholds "Thresholds & Benchmarks") - [How It's Measured](#how-measured "How It's Measured") Share this guide [](https://twitter.com/intent/tweet?url=https%3A%2F%2Fwww.pagespeedmatters.com%2Fresources%2Fglossary%2Finteraction-to-next-paint&text=Interaction%20to%20Next%20Paint)[](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.pagespeedmatters.com%2Fresources%2Fglossary%2Finteraction-to-next-paint)[](https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fwww.pagespeedmatters.com%2Fresources%2Fglossary%2Finteraction-to-next-paint)[](https://www.reddit.com/submit?url=https%3A%2F%2Fwww.pagespeedmatters.com%2Fresources%2Fglossary%2Finteraction-to-next-paint&title=Interaction%20to%20Next%20Paint) Speed Audit ### Find out what's slowing your website down Enter your URL and our team will send back a free, no-strings performance analysis within 24 hours. Get my audit 100% free Results in 24h ## TL;DR Interaction to Next Paint (INP) is a Core Web Vital that measures the latency, in milliseconds, between a user interaction (click, tap, or key press) and the next frame the browser paints in response. ## What is Interaction to Next Paint (INP)? Interaction to Next Paint (INP) is a Core Web Vital that measures the latency, in milliseconds, between a user interaction (click, tap, or key press) and the next frame the browser paints in response. Learn more in our [how to improve INP](/resources/guides/how-to-improve-inp) step-by-step guide, or work with us through our [done-for-you speed optimization service](/services). ## INP Thresholds & Benchmarks Metric Good Needs Improvement Poor INP ≤ 200 ms 200 ms, 500 ms \> 500 ms ## How INP is Measured INP is collected from real users via the Event Timing API and aggregated in the Chrome User Experience Report. Lab tools approximate it through Total Blocking Time. ## Related Terms [Glossary ### Total Blocking Time (TBT) ](/resources/glossary/total-blocking-time)[Glossary ### Long Tasks ](/resources/glossary/long-tasks)[Glossary ### Main Thread Work ](/resources/glossary/main-thread-work)[Glossary ### Core Web Vitals (CWV) ](/resources/glossary/core-web-vitals) Sources - [web.dev: INP](https://web.dev/articles/inp) [![PageSpeed Matters](/assets/logo-DtyG_mQE.png)](/) We optimize website load times to rank higher, decrease advertising costs, and convert more often. 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