# ⚡ Speedometer > **"Player speed, but in real-world blocks per second."** > [!NOTE] > **1 Jar 1 Version Policy:** I build **1 dedicated JAR for each Minecraft version** (e.g. MC 26.2, MC 26.3). Please download the exact build that matches your Minecraft installation. >

> **Dependency Requirement:** Speedometer is 100% self-contained and client-side. It requires **Fabric Loader** only — no Fabric API, no Cloth Config, and no external libraries required. Every Minecraft player knows the frustration: you press F3, look for your movement speed, and vanilla gives you `Speed: 0.215 blocks/tick`. A raw engine tick delta that is impossible to contextualize mid-flight or on horseback. Are you sprinting at peak efficiency? How fast does a firework rocket actually propel your Elytra? How fast is that bred horse compared to a minecart? **Speedometer** fixes this foundation. It adds a native F3 debug screen entry that translates your movement into real-world readable **blocks per second (b/s)** (equivalent to meters per second, m/s). Powered directly by vanilla's 20 TPS physics engine (`Entity.getKnownSpeed()`), it updates dynamically, breaks down 3D velocity into horizontal vs vertical vectors, tracks vehicles and ridden mounts, and seamlessly consolidates with vanilla's `player_speed` debug entry on Minecraft 26.3+. Part of the **Vanilla Outsider Collection** — mods that refine vanilla mechanics with modern engineering standards. --- ## 🎬 Video Showcase

🎬 Video Showcase: Speedometer in Action
Click the video thumbnail or button below to watch the live demonstration on YouTube:

--- ## ✨ Features ### ⚡ First-Class F3 Debug Screen Integration Speedometer registers its own dedicated `speedometer` option inside Minecraft's native `DebugScreenEntries` system (`F3 + F6`). It operates completely on its own — requiring zero external overlay rendering or hacky screen hooks. ### ↔️ Complete 3D Vector Decomposition Get instant mathematical insight into your movement dynamics: - **Total Velocity**: Complete 3D velocity vector magnitude (`length() * 20.0`). - **Horizontal Speed (H)**: Planar ground, sprinting, ice boating, and lateral flight velocity (`sqrt(vx^2 + vz^2) * 20.0`). - **Vertical Speed (V)**: Jumping height velocity, falling rate, and Elytra pitch changes (`abs(vy) * 20.0`). ### 🛠️ Smart Layout Modes & Consolidation (`F3 + F6`) Choose your preferred display layout directly in the in-game **F3 Debug Options Screen** (`F3 + F6`): 1. **Speedometer Only** *(Default — all versions)*: `Speed: 58.79 b/s (H: 58.62, V: 4.47)` 2. **Both Enabled (Smart Consolidation)** *(MC 26.3+)*: `Speed: 2.049 blocks/tick, 40.97 b/s (H: 37.46, V: 16.60)` 3. **Vanilla Player Speed Only** *(MC 26.3+)*: `Speed: 0.215 blocks/tick`

Speedometer Only Standalone
Speedometer standalone mode showing clean blocks/second velocity metrics

Both Speedometer and Player Speed Enabled
Smart consolidation on Minecraft 26.3+ merging blocks/tick and blocks/second into a single line

### 📌 ALWAYS_ON HUD Pinning Want to track your flight or sprint speed without cluttering your view with the entire F3 debug wall? - Open the debug options screen via `F3 + F6`. - Toggle the `speedometer` entry to **`Always`**. - Speedometer will now remain pinned to the top of your screen as a lightweight, unobtrusive speed readout during normal gameplay! ### 🐎 Vehicle & Mount Tracking Speedometer automatically detects when you are riding a **Horse**, **Donkey**, **Mule**, **Camel**, **Boat**, **Minecart**, **Pig**, or **Strider**, calculating and displaying the ridden vehicle's true momentum and speed rather than player entity coordinates. ### 📐 Jitter-Free Dynamic Formatting Uses dynamic string formatting (`%.2f`) that expands and contracts smoothly without rigid character padding. Samples vanilla's pre-calculated `Entity.getKnownSpeed()` vector once per tick for rock-solid 60 FPS performance and **zero GC heap allocation**. ### 🪶 100% Zero Dependencies & Client-Side Architecture - **No Fabric API Required**: Built purely on Fabric Loader and vanilla Minecraft classes. - **Client-Side Only**: Runs completely locally. Connect to vanilla, Spigot, Paper, Forge, or Fabric multiplayer servers without needing any server-side installation. --- ## 📊 Quick Reference & Mechanics Matrix | Performance Aspect | Vanilla F3 Debug Screen | Speedometer (Modern 26.2+) | | :--- | :---: | :---: | | **Speed Unit** | `0.215 blocks/tick` (Abstract physics unit) | **`4.30 b/s`** (Real-world blocks/meters per sec) | | **Vector Decomposition** | ❌ None (Single un-decomposed scalar) | ✅ **Total, Horizontal (H), and Vertical (V)** | | **F3 HUD Footprint** | Takes up standard debug line | ✅ **Smart Consolidation** merges both into 1 line | | **Minimal HUD Pinning** | ❌ None (Requires entire F3 wall open) | ✅ **ALWAYS_ON Pinning** via `F3 + F6` | | **Vehicle & Mount Tracking** | Inconsistent across mounts | ✅ **Tracks ridden horses, boats, minecarts** | | **Server Requirement** | Server-side calculation | ✅ **100% Client-Side** (Works on all servers) | | **Dependencies** | None | ✅ **Zero Dependencies** (No Fabric API needed) | | **Memory / Heap Impact** | Standard | ✅ **0B/frame heap allocation** on render path | --- ## 🚀 In-Game Controls & Quick Start Operate and customize Speedometer using Minecraft's native F3 debug keyboard shortcuts: | Key Combination | Action | Description | | :--- | :---: | :--- | | `F3` | Toggle Debug Screen | Shows or hides the complete F3 debug HUD including Speedometer. | | `F3 + F6` | Open Debug Options | Opens the interactive Debug Screen Entries menu to toggle or pin Speedometer. | | `F3 + Q` | Show F3 Help | Displays Minecraft's in-game help list for all active F3 key combinations. | --- ## ⚙️ Configuration & HUD Pinning Speedometer uses Minecraft's official **Debug Screen Entries** architecture (`DebugScreenEntries`): 1. Press `F3 + F6` in-game to open the native debug configuration screen. 2. Scroll to locate `speedometer`. 3. Cycle through the three native display states: - **`Default`**: Visible only when the full F3 screen is active. - **`Always`**: Permanently pinned to your HUD even when the F3 screen is closed. - **`Never`**: Completely hidden. 4. On Minecraft 26.3+, you can independently configure `player_speed` and `speedometer`; enabling both will automatically merge them into a unified single-line readout! --- ## 📖 In-Depth How-To & Operational Playbook ### 1. Drop-In Installation & Client Verification 1. Download `speedometer-*.jar` for your Minecraft version. 2. Place the JAR file directly into your `.minecraft/mods` folder. 3. Launch Minecraft. No companion libraries or configuration files are required. ### 2. Pinning a Minimal Speedometer to Your HUD 1. Press `F3 + F6` to enter the Debug Entries screen. 2. Click on the `speedometer` entry to cycle its mode from `Default` to `Always`. 3. Press `Done` (or `Escape`). 4. Close the F3 menu by pressing `F3`. 5. A clean, compact speed readout (`Speed: 4.30 b/s (H: 4.30, V: 0.00)`) will remain visible in the top-left of your screen, giving you real-time speed data during survival gameplay! ### 3. Elytra Flight Speed & Rocket Benchmarking - When launching with an Elytra, fire a firework rocket while watching your **Total Speed** and **Vertical (V)** speed. - Note how vertical pitch affects speed: diving down converts gravitational potential energy into extreme **Horizontal (H)** speed exceeding 60-80 b/s. - Level off when your vertical speed hits near `V: 0.00` to maximize horizontal travel distance per rocket! ### 4. Horse & Mount Breeding Optimization - When breeding horses, mount each candidate and sprint across a flat surface. - Check the **H (Horizontal)** speed readout: - Average wild horses run between **9.0 to 11.5 b/s**. - A maximum-stat bred horse reaches **14.23 b/s** (faster than minecarts!). - Speedometer gives you instant, exact verification of your horse breeding lineage without needing redstone timer tracks. ### 5. Blue Ice Highway & Boat Velocity Testing - On blue ice boat tracks, acceleration builds rapidly. - Monitor your horizontal speed as you reach terminal boat velocity (**72.73 b/s**), allowing you to benchmark transport network efficiency across server hubs. --- ## 🧩 Recommended Sister Mods If you enjoy **Speedometer**, these companion mods from the **Vanilla Outsider** and **Instant Gratification** collections plug in seamlessly: * 🚀 [**Max Elytra Fly Speed**](https://modrinth.com/mod/instant-gratification-max-elytra-fly-speed): Uncap vanilla Elytra flight speed limits and track your supersonic velocities with Speedometer in real time. * 🐕 [**Better Dogs**](https://modrinth.com/mod/better-dogs): Loyal canine companions that ride along in your boats and minecarts, keeping pace with your travels. * 📜 [**Collapsible Game Rules**](https://modrinth.com/mod/collapsible-gamerules): Collapsible category headers and real-time search for the Edit Game Rules menu. > 🌟 *Explore the full [**Vanilla Outsider Collection**](https://modrinth.com/collection/vanilla-outsider) for more vanilla enhancements.* --- ## ☕ Support If you enjoy the **Vanilla Outsider Collection**, consider fueling future development!

> [!NOTE] > **🇮🇩 Indonesian Users:** SocioBuzz and Saweria support local payment methods (Gopay, OVO, Dana, etc.) if you want to support me without using PayPal/Ko-fi! > [!TIP] > **Dedicated Server Hosting Partner:** > Looking for a reliable server to play with friends? Check out **BisectHosting** for 1-click modpack installations, automated backups, and 24/7 dedicated customer support. --- ## 📜 Credits & Modpack Permissions | Property | Information | | :--- | :--- | | **Creator / Author** | **Dasik** (Rifaditya) | | **Collection** | Vanilla Outsider Collection | | **License** | [GNU General Public License v3.0 (GPLv3)](https://www.gnu.org/licenses/gpl-3.0.html) | | **Source Code** | [GitHub - Rifaditya/f3-speedometer](https://github.com/Rifaditya/f3-speedometer) | | **Issue Tracker** | [GitHub Issues](https://github.com/Rifaditya/f3-speedometer/issues) | | **Documentation / Wiki** | [GitHub Wiki](https://github.com/Rifaditya/f3-speedometer/wiki) | > [!IMPORTANT] > **📦 Modpack Permissions & Distribution:**
> You are fully welcome to include this mod in any modpack on any platform! However, the mod file must be downloaded directly through official distribution channels (**Modrinth** or **CurseForge**). Re-uploading, mirroring, or redistributing the original mod JAR to third-party mirror sites, scraper portals, or unauthorized launchers is strictly prohibited. >

> **⚖️ License & Fork Guidelines (No Zero-Change Re-uploads):**
> This project is open-source under the **GNU GPLv3**. You are fully encouraged to inspect the code, learn from it, and fork the repository to create genuine modifications, substantial feature expansions, or community ports—provided your project remains open-source under GPLv3 with proper attribution.
> **However, straight 1:1 re-uploads, clone forks with no meaningful functional changes, or re-publishing identical builds under different project names (e.g. to farm downloads or rewards) are strictly forbidden.** ---

Made with ❤️ for the Minecraft community
Part of the Vanilla Outsider Collection

VO: Speedometer

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Minecraft: Java Edition

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