Need to find the height of a specific tractor tire size? Whether you’re planning a tire upgrade, replacing a worn-out set, or calculating ratios for 4WD performance, knowing the exact height (diameter) of your tires is key. This tractor tire size height chart gives you fast access to tire sizes with their approximate overall diameters.
Why Does Tractor Tire Height Matter?
Tractor tire height, also known as diameter, impacts ground clearance, gearing, and power transfer. A tire that’s too tall or too short can disrupt your 4WD system, reduce traction, and lead to mechanical issues. For accurate setup, use a 4×4 Tractor Tire Ratio Calculator or 4WD Wheel Ratio Calculator before switching tire sizes.
Tractor Tire Size Height Chart
This chart lists the most common tractor tire sizes and their approximate heights in inches. Actual diameter may vary slightly depending on inflation, brand, and tread wear.
| Tire Size | Approx. Height (inches) | Position | Common Use |
|---|---|---|---|
| 6.00-16 | 28″ | Front | 2WD Tractors |
| 7.50-16 | 31″ | Front | 2WD Tractors |
| 9.5-24 | 41″ | Front | MFWD/4WD |
| 11.2-24 | 43″ | Rear | Compact Tractors |
| 12.4-28 | 47″ | Rear | Utility Tractors |
| 13.6-28 | 49″ | Rear | Utility Tractors |
| 14.9-28 | 52″ | Rear | Field Work |
| 16.9-30 | 57″ | Rear | Field Tractors |
| 18.4-34 | 63″ | Rear | Row Crop Tractors |
| 20.8-38 | 69″ | Rear | High Horsepower Tractors |
How to Measure Tractor Tire Height
If you’re unsure of your tire’s height, here’s how to measure it manually:
- Fully inflate the tire to operating pressure
- Measure from the ground to the top center of the tread
- Repeat on both sides to check for even wear
Be sure to match front and rear heights on 4WD tractors using the calculators below to avoid drivetrain issues.
How to Convert Metric Tire Sizes to Height
Use this formula to convert metric tire sizes to height (diameter in inches):
Tire Height = ((Section Width × Aspect Ratio × 2) ÷ 25.4) + Rim Diameter
Example for 420/85R30:
- 420 × 0.85 × 2 ÷ 25.4 = 28.13″
- 28.13″ + 30″ (rim) = 58.13″ total height
Instead of calculating manually, you can quickly get results using the
4×4 Tire Ratio Calculator.
Tire Height and Ballasting
Larger tires usually mean a higher center of gravity—which can affect balance and traction. To stay safe and stable, make sure your tractor is properly weighted based on tire size.
Use the Ballast Calculator for Tractor Tires to determine how much ballast you need for taller tires.
Loading Tractors with Taller Tires
Taller tires mean your tractor sits higher—and that changes the ramp angle needed to load onto trailers safely.
Use the Garden Tractor Ramp Calculator to figure out the safest ramp length for your setup.
Conclusion
Knowing the height of your tractor tires helps you maintain balance, protect your drivetrain, and work more efficiently—especially in 4WD configurations. Use this chart to find your tire height and make the right decision for your tractor setup.
Don’t forget to take advantage of these free tools to help with everything from tire ratios to ballasting:
- 4×4 Tire Ratio Calculator
- 4WD Wheel Ratio Calculator
- Ballast Weight Calculator
- Ramp Angle Calculator
- Hourly Rate Calculator
Choose the right tire height, and your tractor will reward you with better traction, smoother operation, and longer service life.