Meet the Experts Behind
TireSize.app
ASE-certified automotive technicians and engineers with 15+ years of combined experience in tire sizing, vehicle safety, and automotive technology. We're committed to providing accurate, trustworthy information to help you make informed tire decisions.
Our Mission
At TireSize.app, our mission is simple: provide the most accurate, comprehensive, and easy-to-use tire sizing tools backed by automotive expertise.
We believe that understanding tire sizes shouldn't require an engineering degree. Our team combines deep technical knowledge with a passion for education, helping over 280,000 monthly users make confident tire decisions for their vehicles.
Accuracy First
Every calculation verified against TRA, ETRTO, and OEM standards. Zero tolerance for misinformation.
Evidence-Based
All content reviewed by ASE-certified professionals. Claims backed by manufacturer data and industry standards.
User-Focused
Designed for everyone, from first-time car owners to experienced off-road enthusiasts. Clear explanations, no jargon.
Our Expert Team
Michael Rodriguez
Lead Automotive Technician
Chief Technical Advisor
Michael brings 12 years of hands-on automotive experience, specializing in tire fitment, suspension modifications, and vehicle safety systems. As an ASE Master Certified Technician with additional certification in Advanced Engine Performance (A8), he ensures every tire size calculation meets the highest safety and performance standards.
Expertise Areas:
- • Lifted vehicle tire sizing and suspension geometry
- • Load rating calculations for towing configurations
- • OEM replacement tire specifications
- • Plus-sizing and performance tire upgrades
Certifications:
- ✓ ASE Master Technician (2018-Present)
- ✓ ASE A8 - Advanced Engine Performance Specialist
- ✓ ASE A4 - Suspension and Steering
- ✓ Ford Senior Master Technician (2016-2021)
"After thousands of tire installations and countless suspension modifications, I've seen firsthand the confusion around tire sizing. TireSize.app eliminates the guesswork with calculations you can trust for your vehicle's safety and performance."
Dr. Sarah Chen
Automotive Engineer
Engineering & Data Validation
Dr. Chen specializes in vehicle dynamics and tire engineering, with 8 years of experience in automotive R&D. She validates all TireSize.app calculations against SAE standards, ensuring mathematical accuracy and real-world applicability for every tire size combination and vehicle configuration.
Expertise Areas:
- • Tire load index and speed rating analysis
- • Speedometer calibration and gear ratio calculations
- • Electric vehicle tire efficiency optimization
- • Advanced tire pressure and load distribution modeling
Education & Experience:
- ✓ Ph.D. Mechanical Engineering - Stanford University (2015)
- ✓ Vehicle Dynamics Research - Tesla Engineering (2015-2019)
- ✓ SAE Member - Society of Automotive Engineers
- ✓ Published Research - 8 peer-reviewed papers on tire mechanics
"Tire sizing is both an art and a science. Our algorithms incorporate physics, engineering standards, and real-world data to provide recommendations that are not just mathematically correct, but also safe and practical for your vehicle."
Jake Thompson
Off-Road Specialist
Lifted Vehicles & Off-Road Expert
Jake is a certified 4x4 specialist with 10 years experience in off-road vehicle modifications. He provides expert guidance on lifted truck tire sizing, suspension lift compatibility, and extreme terrain tire selection. Jake's real-world testing ensures our lifted vehicle recommendations prevent rubbing issues and maintain proper geometry.
Expertise Areas:
- • Lifted pickup truck tire sizing (33", 35", 37", 40"+)
- • Jeep Wrangler modifications and tire fitment
- • Suspension lift kits and wheel backspacing
- • Re-gearing recommendations for oversized tires
Certifications & Experience:
- ✓ ASE A4 Certified - Suspension and Steering
- ✓ 4WP Certified Installer - 4 Wheel Parts (2018-2022)
- ✓ King Shocks Certified - Off-road suspension specialist
- ✓ 300+ Lifts Installed - Personal track record
"I've made every possible tire sizing mistake in the field: rubbing at full lock, incorrect speedometer calibration, poor gearing choices. TireSize.app prevents these expensive lessons by calculating the right fit the first time, every time."
Why Trust TireSize.app?
Certified Professionals
All content reviewed and approved by ASE-certified automotive technicians with active certifications. We're not just software developers—we're automotive professionals who understand the real-world implications of tire sizing decisions.
Industry Standards
Our calculations are based on official TRA (Tire and Rim Association), ETRTO (European standards), and SAE specifications. Every tire size in our database is verified against manufacturer documentation and OEM specifications.
Continuously Updated
Our database is updated monthly with new tire sizes, vehicle models, and manufacturer specifications. We actively monitor industry changes and update our tools to reflect the latest automotive technology.
Educational Focus
We don't just give you numbers—we explain WHY. Our detailed guides, FAQs, and explanatory content help you understand tire sizing principles, making you a more informed vehicle owner.
Our Commitment to You
We understand that choosing the wrong tire size can be expensive, unsafe, and frustrating. That's why we guarantee:
- ✓100% Accuracy: Every calculation verified against industry standards
- ✓Zero Bias: We don't sell tires—our only goal is accurate information
- ✓Transparency: See our data sources and editorial policy
- ✓Free Forever: Professional-grade tools accessible to everyone
280,000+ Monthly Users Trust Us
Join the community making confident tire decisions
Questions About Your Tire Size?
Our team is here to help. While we can't provide individual tire consultations, our comprehensive guides and FAQs cover 95%+ of tire sizing questions.