Introduction
Welcome to The Ranger Station’s Calculators & Converters hub for Ford Ranger and Bronco II owners. Here you’ll find easy-to-use tools for fuel economy calculations, speedometer adjustments, tire and gear ratio conversions, axle and differential math, suspension lift and spring rate measurements, and bolt torque specifications. Whether you’re upgrading your tires, changing gears, building a Mini Truck, or fine-tuning your suspension, our calculators and converters help you make precise adjustments and avoid costly mistakes. Use our resources to check miles per gallon, tire size changes, final drive ratios, coil and leaf spring rates, RTI ramps, and more.
Disclaimer: Information provided for reference only. Vehicle modifications may be hazardous. Read full legal notice.
Online Calculators
Fuel
Speedometer
Check Speedometer After Tire Change
Combined Tire & Speed Calculator
Axle & Gears
Gears Needed After Tire Change
Tires
Tire Size Calculator & Size Chart
Suspension
Converters
Converting Fractions To Decimals
Bolts
SAE Bolt Torque Specifications
About The Author
Jim Oaks is the founder of TheRangerStation.com, the longest-running Ford Ranger resource online since 1999. With over 25 years of hands-on experience building and modifying Ford Rangers — including magazine-featured builds like Project Transformer — Jim has become one of the most trusted authorities in the Ford Ranger off-road and enthusiast space.
Since launching TheRangerStation.com, Jim has documented thousands of real-world Ranger builds, technical repairs, drivetrain swaps, suspension modifications, and off-road adventures contributed by owners worldwide. TheRangerStation.com has been referenced in print, video and online by enthusiasts, mechanics, and off-road builders looking for practical, and experience-based information.