REAL-WORLD EXAMPLE
The E-Z-GO RXV 4 owner's manual lists 18x8.5-8 tires on the standard model and 23x10-12 on the RXV 4 Lifted. Calculated: overall height increases by 5” (+27.8%) and revolutions per mile fall from 1,120 to 877. The manual lists ground clearance at the differential of 4 in (standard) and 6.75 in (lifted). We have no official source for lift requirements by tire size, so none are shown.
Golf Cart Tire Dimension Calculator
Enter your tire in flotation format Height × Width - Rim (e.g. 18×8.5-8). Add a second size to compare height change.
Current Tire
First number in size code
Middle number
Last number
Comparison Tire (optional)
Fill all three fields to see the height change.
Golf Cart Tire Dimensions & Manufacturer Sizes
| Tire Size | Diameter (in) | Circumference (in) | Revs/Mile | Source |
|---|---|---|---|---|
| 18×8.5-8 | 18.0 in | 56.5 in | 1,120 | E-Z-GO RXV 4 standard (18–22 psi range) |
| 20.5×8.0 (10×6 rim) | 20.5 in | 64.4 in | 984 | Yamaha Drive2 PTV Quietech 2021 (22 psi) |
| 22×10-10 | 22.0 in | 69.1 in | 917 | Club Car Precedent approved tire matrix (20 psi) |
| 23×10-12 | 23.0 in | 72.3 in | 877 | E-Z-GO RXV 4 Lifted; Club Car Precedent matrix (20 psi) |
| 23×10-14 | 23.0 in | 72.3 in | 877 | Club Car Precedent approved tire matrix (20 psi) |
Diameter, circumference and revolutions per mile are calculated from the size. Sources: E-Z-GO RXV 4 owner's manual, Yamaha Drive2 PTV 2021 owner's manual, Club Car Precedent approved tire matrix.
Manufacturer Statements on Size and Lift
| Cart | Tires | Notes |
|---|---|---|
| E-Z-GO RXV 4 | 18x8.5-8 standard; 23x10-12 on the Lifted model | Ground clearance at differential 4 in (standard) and 6.75 in (lifted) |
| Club Car Precedent | Approved tire matrix | Marks some tire and vehicle combinations (for example 22x10-10, 23x10-12, 23x10-14) as requiring lift kit AM15009001 |
| Yamaha Drive2 PTV | 20.5 × 8.0 4PR on 10 × 6 rims | Pressure 152 kPa (22 psi); replace tire at 1 mm tread |
How to Use This Calculator
- Enter your golf cart tire size in flotation format (e.g. 18×8.5-8 or 23×10-12) — the three numbers are Overall Height × Width-Rim Diameter.
- Optionally enter a second size to compare it against your current tires.
- Click 'Calculate Dimensions'.
- Review overall height, circumference, revolutions per mile and the height change (all calculated).
- Check your cart manufacturer’s documentation for approved tire sizes and pressures; we have no official source for lift requirements.
Calculation Formulas & Tire Size Format
About Golf Cart Tire Sizing
Reading the Flotation Tire Format
Golf cart tires use a "flotation" sizing format: Overall Height × Section Width – Rim Diameter. This is more straightforward than metric car tires because the overall diameter is given directly as the first number. A 23×10-14 tire is 23 inches tall, 10 inches wide, and fits a 14-inch rim — no aspect ratio math needed. The flotation tire converter writes a size in metric, and the golf cart tire guide with manufacturer sizes lists what the cart makers publish.
What the Manufacturers Say
- E-Z-GO: always use the size and type of tires specified for the vehicle, and maintain the correct pressure.
- Club Car: when changing tires, validate that vehicle speed remains less than the maximum rated speed for the vehicle.
- Yamaha: replace the tire when tread wears down to 1 mm (0.04 in).
We have no official source for the effect of tire size on ride, torque or traction, or for lift sizes by tire height. Pressure units are converted on the PSI to kPa converter, and speed changes from a new diameter on the speedometer error calculator.