# PPI & DPI Density Calculator MCP for AI Agents MCP > The PPI & DPI Density Calculator gives developers and designers the precise math needed for high-density displays. Use this MCP to instantly find a screen's Pixel Per Inch (PPI), determine the necessary Windows scaling percentage, or translate any physical measurement, like inches, into exact pixel counts. ## Overview - **Category:** utility - **Price:** Free - **Endpoint:** https://edge.vinkius.com/vk_preview_D8pVN48YDz6vZfScKkBdKQ7RtGIJM9bS1qrjTGCR/mcp - **Tags:** ppi, dpi, scaling, resolution, pixel-density ## Description Working on interfaces that need to look perfect across different monitors is tough. You can't just guess the math; you need precision for PPI, DPI, and scaling factors. This MCP handles all the heavy lifting of display engineering so your AI agent provides accurate numbers instantly. Instead of jumping between multiple utility websites or doing complex formulas by hand, you tell your agent what screen resolution and diagonal size you're working with. It calculates the exact pixel density for you. Then, if you need to know how a physical component—say, a 3-inch card—will translate into pixels on that specific display, it handles the conversion. Similarly, if you need to figure out the correct Windows scaling percentage relative to standard DPI baselines, your agent gets that number immediately. This calculator is essential for anyone building interfaces that must work flawlessly from a laptop screen to a massive 4K monitor. By connecting this MCP via Vinkius, your AI client gains immediate access to these core mathematical tools, keeping your development process focused on design, not math. ## Tools ### calculate_scaling_percentage Determines what Windows scaling percentage is required if you are basing your design on a 96 DPI standard. ### convert_physical_to_pixels Calculates the exact number of pixels needed to represent a specific physical measurement, like an inch or a centimeter. ### get_pixel_density Finds the precise pixel density (PPI) for any display given its diagonal size and resolution. ## Prompt Examples **Prompt:** ``` What's the PPI for a 15-inch laptop screen running at 2880x1800? ``` **Response:** ``` Here is the pixel density calculation for your display: * **Screen Size:** 15 inches * **Resolution:** 2880 x 1800 pixels * **Calculated PPI:** Approximately **141.9 PPI**. This number confirms the required density for high-resolution displays. ``` **Prompt:** ``` If I have 160 PPI, what scaling factor should my design use? ``` **Response:** ``` To maintain visual consistency with a standard 96 DPI baseline when your actual display density is 160 PPI, you need to apply a **166.7%** Windows scaling factor. This adjustment ensures that elements look correctly sized and proportioned regardless of the user's OS settings. ``` **Prompt:** ``` How many pixels are in a 4-inch space on an unknown screen? ``` **Response:** ``` To calculate this, we need to know the PPI first. Assuming your target PPI is 120: * **Input:** 4 inches * **Density (PPI):** 120 * **Required Pixel Count:** **480 pixels**. Use this formula for any physical size conversion. ``` ## Capabilities ### Determine Display Pixel Density Calculates the exact PPI of a monitor when given its resolution and diagonal size. ### Calculate Scaling Factor Determines the necessary Windows scaling percentage needed to adapt designs relative to a 96 DPI baseline. ### Convert Physical Units to Pixels Translates any real-world physical measurement, such as inches, into its required pixel count for screen display. ## Use Cases ### Checking a new monitor standard A developer needs to know if their existing UI components will look correct on a brand-new 27-inch, 3840x1600 display. They ask their agent for the PPI, and it immediately returns the precise density number needed to confirm scalability. ### Designing print vs screen elements A designer needs to make sure a physical logo element that is 2 inches wide looks correct on both paper (96 DPI baseline) and a high-res monitor. They use the `convert_physical_to_pixels` tool to get accurate pixel equivalents for all mediums. ### Adjusting design for OS scaling A team member notices that their UI looks slightly off on certain corporate laptops with high DPI settings. They ask the agent for the required Windows scaling percentage, and it provides the exact factor (e.g., 150%) to fix the layout. ### Verifying design consistency A product manager needs to compare a mockup's intended PPI against a specific client monitor model. They input the details into the calculator, and the agent confirms if the current density matches the required standard. ## Benefits - Stop guessing scaling. Use the `calculate_scaling_percentage` tool to instantly find the correct Windows adjustment factor, ensuring your UI adapts properly across different operating systems. - Never worry about unit mismatch again. The `convert_physical_to_pixels` function lets you translate any physical measurement into precise pixel counts needed for design mockups. - Get immediate PPI confirmation. You can use `get_pixel_density` to confirm the exact pixel density of a monitor just by knowing its diagonal size and resolution, saving hours of manual calculation. - Build reliable cross-platform interfaces. By integrating this math MCP, your agent provides the technical foundation needed for consistent design output regardless of user hardware. - Faster handoff to development. Providing concrete numbers—like the required scaling percentage or pixel count—removes guesswork from your dev team's requirements list. ## How It Works The bottom line is that you get accurate, calculated display math without ever leaving your chat window. 1. You prompt your AI agent with the specific parameters needed—for example, a monitor's size and resolution, or a physical dimension and target PPI. 2. The agent sends these inputs to this MCP. The system runs the necessary mathematical calculation using its internal tools. 3. Your agent returns the precise result, whether it’s an updated PPI number, a scaling percentage, or the final pixel count. ## Frequently Asked Questions **How do I calculate the PPI of my monitor?** You can use the `get_pixel_density` tool. Simply provide your screen's width in pixels, height in pixels, and the diagonal size in inches. **What is the 96 DPI baseline?** The 96 DPI (Dots Per Inch) baseline is the industry standard for Windows scaling. The `calculate_scaling_percentage` tool uses this as a reference to find your required scaling factor. **Can I convert inches to pixels directly?** Yes, using the `convert_physical_to_pixels` tool. You just need to provide the target size in inches and your current screen PPI.