# Tire Size Converter MCP for AI Agents AI Agent Connect > Tire Size Converter MCP helps you figure out tire geometry quickly. It calculates physical dimensions from metric sizes, tells you how much your speedometer will be off after a change, and checks if a new tire will rub against your car's frame or suspension. It's built for anyone swapping wheels or planning a lift kit. It provides accurate data for off-road builds and daily drivers alike. ## Overview - **Category:** utilities - **Price:** Free - **Endpoint:** https://edge.vinkius.com/vk_preview_NNFLccAVu7Xsy2jFByzszkRgrWPfCRQNyas3MxTI/ai-agent-connect - **Tags:** tires, automotive-tools, geometry, speedometer, clearance ## Description When you're planning a wheel swap or a lift kit, the math can get messy fast. You need to know exactly how much your tire diameter changes because that affects your speedometer accuracy and your safety on the road. This Connector takes the guesswork out of the equation by handling the heavy lifting for you. Instead of hunting for online calculators or manual conversion tables, you can just ask your AI client to run the numbers. It gives you the precise width, sidewall height, and circumference for any tire size you're considering. It also checks for clearance issues, so you don't end up with a tire that rubs against your vehicle's frame or suspension. Since Vinkius hosts this Connector, you can plug it into your favorite AI client and get professional-grade automotive calculations in seconds. It's about making sure your new setup fits perfectly and your dash stays accurate without the headache of manual math. It's a huge time saver for anyone who doesn't want to spend an afternoon with a calculator and a notepad trying to verify if a new set of wheels will actually clear the wheel well. You get clear, actionable data that helps you make confident decisions about your vehicle's stance and performance. It provides the peace of mind that comes from knowing your gear is compatible before you ever turn a wrench. ## Tools ### evaluate_clearance_compatibility Check if a new tire size will rub against your vehicle's frame or suspension. This helps you identify clearance risks before you buy new wheels. ### calculate_speedometer_deviation See how much your speedometer will be off if you switch to a different tire size. It shows the percentage difference between your dash and actual speed. ### calculate_tire_dimensions Get the width, sidewall height, diameter, and circumference for any tire size. This helps you understand the physical profile of your wheels. ## Prompt Examples **Prompt:** ``` What are the dimensions for a 265/70R17 tire? ``` **Response:** ``` For a **265/70R17** tire, here are the physical dimensions: | Dimension | Value | | :--- | :--- | | **Width** | 265mm (10.43in) | | **Sidewall Height** | 185.5mm (7.30in) | | **Overall Diameter** | 773.1mm (30.44in) | | **Circumference** | 2429.2mm | | **Revs per Mile** | 662.5 | This gives you a complete profile of how the tire sits on your vehicle. ``` **Prompt:** ``` If I switch from 265/70R17 to 285/75R18, what is the speedometer error? ``` **Response:** ``` If you switch to the **285/75R18** size, here is the impact on your dash: * **Speedometer Error:** Approximately **-3.45%** * **What this means:** Your actual speed will be **higher** than what is shown on your dashboard. Because the new tire is larger, your vehicle travels further with every rotation of the axle. ``` **Prompt:** ``` Is a 780mm diameter tire safe to install if my current is 720mm and threshold is 25mm? ``` **Response:** ``` Here is the clearance check for that upgrade: * **Current Diameter:** 720mm * **New Diameter:** 780mm * **Diameter Delta:** 60mm ⚠️ **Result: High Risk of mechanical interference.** Since the 60mm increase exceeds your 25mm threshold, there is a high risk of the tire rubbing against your frame or suspension components. ``` ## Capabilities ### Get tire dimensions Get the width, sidewall height, diameter, and circumference for any tire size. ### Calculate speedometer error See how much your speedometer will be off after a tire swap. ### Check for clearance risks Identify if a new tire size will rub against your vehicle's frame or suspension. ### Provide revs per mile Get the revolutions per mile for any specific tire size. ### Verify fitment Check if a new tire will clear your wheel well or other mechanical parts. ### Convert metric sizes Turn metric tire notations into physical profiles. ### Identify diameter deltas Compare the size difference between your current and new tires. ## Use Cases ### Planning a truck lift A user wants to know if 35-inch tires will clear the fenders on a lifted truck. They ask their agent to check the diameter delta and clearance risks. ### Speedometer drift A driver installs oversized tires and wants to know the actual speed vs the dash. They use the Connector to find the exact percentage of speedometer error. ### Tire shop quote A shop owner needs to quickly give a customer the exact dimensions for a metric tire. The agent pulls the width and circumference instantly. ### Off-road clearance An enthusiast checks if a wider tire will rub against the suspension on a trail. They use `evaluate_clearance_compatibility` to verify the fit. ## Benefits - Accurate speedometer data: Use `calculate_speedometer_deviation` to see exactly how much your dash will be off after a swap. It removes the guesswork from your speedometer accuracy. - Precise fitment checks: Use `evaluate_clearance_compatibility` to avoid expensive rubbing issues. You can confirm clearance before you spend money on tires. - Instant geometry: Get width and diameter for any tire with `calculate_tire_dimensions`. This saves you from hunting for conversion charts online. - Faster quotes: Tire shops can give customers accurate specs in seconds. It speeds up the sales process and improves customer trust. - Safer off-roading: Know your clearance risks before you hit the trail. This helps prevent mechanical damage to your vehicle. - Precise metric conversion: Easily turn metric notations into physical profiles. This ensures you have the right data for your specific wheel setup. ## How It Works The bottom line is it turns complex tire math into instant, actionable data for your vehicle setup. 1. Provide your current tire size and the new size you want to install. 2. The Connector calculates the geometry, speedometer drift, and clearance risks. 3. You get a summary of the physical dimensions and a risk assessment. ## Frequently Asked Questions **Can the Tire Size Converter MCP help me plan a truck lift?** Yes, it helps you verify if larger tires will clear your fenders. It calculates the diameter delta and identifies clearance risks so you can plan your lift with confidence. **How does the Tire Size Converter MCP calculate speedometer error?** It compares the circumference of your current tire to your new tire size. It then provides the exact percentage difference so you know how much your dash will drift. **Can I use the Tire Size Converter MCP for metric tires?** Yes, it handles metric notations like 265/70R17 perfectly. It converts those numbers into physical dimensions like width, height, and diameter. **Will the Tire Size Converter MCP tell me if my tires will rub?** It provides a clearance risk assessment. By comparing the new tire size against your current setup and a safety threshold, it flags potential rubbing issues. **Can the Tire Size Converter MCP give me the circumference of a tire?** Yes, it provides the full physical profile of a tire. This includes the width, sidewall height, diameter, and total circumference. **How do I calculate the diameter of my new tire?** You can use the `calculate_tire_dimensions` tool by providing the metric size, such as '265/70R17'. **Will my speedometer be accurate after changing tires?** Changing tire sizes can cause deviation. Use `calculate_speedometer_deviation` to find the exact error percentage. **How can I check if larger tires will rub against my car?** Use the `evaluate_clearance_compatibility` tool with your current and new diameters to assess mechanical risk.