# ReactionBench - Reaction Time Benchmarks Test your reaction time with 13 free online benchmarks: classic click, spacebar, audio, F1 lights, ruler drop and more. Every test times you to the exact painted frame using `performance.now()`, the browser's high-resolution monotonic clock. Nothing you do here leaves your browser — no account, no server, no analytics. ## General Information - [ReactionBench](https://reactionbench.com/): Free, browser-based reaction time benchmarks with frame-accurate millisecond timing and instant results. - [About / Methodology](https://reactionbench.com/about): How we time you, the latency we can't remove, and the cited research behind every percentile. - [Disclaimer](https://reactionbench.com/disclaimer): Test scores are a casual benchmark, not a medical or clinical instrument. ## Tests 13 reaction time benchmarks, all live. - [Classic Reaction Time Test](https://reactionbench.com/reaction-time-test) — Wait for the panel to turn green, then click as fast as you can. Five rounds — your score is the median. - [Spacebar Reaction Time Test](https://reactionbench.com/spacebar-reaction-time-test) — Same test, react with the spacebar — your keyboard hand vs. your mouse hand. - [Audio Reaction Time Test](https://reactionbench.com/audio-reaction-time-test) — React the instant you hear the beep. Most people set their best score here. - [F1 Reaction Time Test](https://reactionbench.com/f1-reaction-time-test) — Five red lights, then lights out. Launch like a Formula 1 driver. - [Drag Racing Reaction Time Test](https://reactionbench.com/drag-racing-reaction-time-test) — Time the Christmas tree. Leave too early and you foul out. - [Driving Reaction Time Test](https://reactionbench.com/driving-reaction-time-test) — Brake when a hazard appears — then see your real stopping distance. - [Ruler Drop Test](https://reactionbench.com/ruler-drop-test) — The physics-class classic, on screen. Catch the ruler and see distance in cm and time in ms. - [Red Light Green Light Test](https://reactionbench.com/red-light-green-light-test) — Run on green, freeze on red. Miss the stop and you're caught. - [5-Choice Reaction Time Test](https://reactionbench.com/choice-reaction-time-test) — Five zones, one lights up — hit the right one. - [Go/No-Go Test](https://reactionbench.com/go-no-go-test) — Click on green, hold back on red. Tests speed and self-control. - [Aim Reaction Test](https://reactionbench.com/aim-reaction-test) — Targets pop up one at a time. Click each one as fast as you can. - [Baseball Reaction Time Test](https://reactionbench.com/baseball-reaction-time-test) — A 95 mph pitch gives you 0.4 seconds. Swing inside the window. - [CPS Test](https://reactionbench.com/cps-test) — How many clicks can you land in ten seconds? Pure finger speed. ## Articles 10 reference articles on reaction time research, all live. - [What Is the Average Human Reaction Time?](https://reactionbench.com/average-reaction-time) — About 250 ms for visual and 170 ms for audio stimuli. Full tables by age, sport, and test type. - [What Is a Good Reaction Time?](https://reactionbench.com/what-is-a-good-reaction-time) — Percentiles, what counts as a good score by age and device, and what affects your result. - [Reaction Time World Record](https://reactionbench.com/reaction-time-world-record) — What's actually possible, why sub-100 ms is ruled a false start, and why most online "records" aren't real. - [How to Improve Your Reaction Time](https://reactionbench.com/how-to-improve-reaction-time) — Evidence-based ways to get faster — sleep, practice specificity, sport drills — and the myths that don't work. - [How to Test Your Reaction Time](https://reactionbench.com/how-to-test-reaction-time) — Compare online tests, the ruler drop method, apps, and lab methods, with accuracy notes for each. - [Ruler Drop Test Conversion Chart](https://reactionbench.com/ruler-drop-test-chart) — Distance in cm to reaction time in ms, the physics behind it, and a printable classroom version. - [F1 Driver Reaction Times](https://reactionbench.com/f1-driver-reaction-times) — Real launch reaction ranges, how the FIA light system works, and famous jump starts. - [Pro Gamer Reaction Times](https://reactionbench.com/gamer-reaction-times) — Published reaction time ranges for CS2 and FPS pros, how monitor Hz changes your score, and how to compare. - [Reaction Time by Age](https://reactionbench.com/reaction-time-and-age) — Reaction time peaks around age 24 and declines slowly after. Averages by age group. - [Reaction Time and Attention](https://reactionbench.com/reaction-time-and-attention) — How continuous reaction tests relate to attention research — and why this isn't an ADHD screening tool. ## Website Structure ``` reactionbench.com/ ├── / # Homepage — test directory and pitch ├── /tests # All 13 tests, grouped by category ├── /reaction-time-test # Classic Reaction Time Test (flagship) ├── /spacebar-reaction-time-test ├── /audio-reaction-time-test ├── /f1-reaction-time-test ├── /drag-racing-reaction-time-test ├── /driving-reaction-time-test ├── /ruler-drop-test ├── /red-light-green-light-test ├── /choice-reaction-time-test ├── /go-no-go-test ├── /aim-reaction-test ├── /baseball-reaction-time-test ├── /cps-test ├── /average-reaction-time # + 9 more articles, see Articles above ├── /about # Methodology: timing, limits, percentiles, privacy ├── /stats # Personal results dashboard (localStorage only) ├── /privacy-policy # Privacy policy ├── /terms-and-conditions # Terms and conditions └── /disclaimer # Disclaimer ``` ## Other Links - [Sitemap (XML)](https://reactionbench.com/sitemap.xml) - [Sitemap (markdown)](https://reactionbench.com/sitemap.md) - [Agent Skills discovery index](https://reactionbench.com/.well-known/agent-skills/index.json) — per the Agent Skills Discovery RFC v0.2.0; the skill itself is at [/.well-known/agent-skills/reactionbench/SKILL.md](https://reactionbench.com/.well-known/agent-skills/reactionbench/SKILL.md) ## Policies - [Disclaimer](https://reactionbench.com/disclaimer): Test scores are a casual benchmark, not a medical or clinical instrument. - [Privacy Policy](https://reactionbench.com/privacy-policy): No accounts, no analytics, no cookies — results stay in your browser's storage. - [Terms & Conditions](https://reactionbench.com/terms-and-conditions): The legal terms governing use of ReactionBench.