LT225/75R16 Tire Size
LT225/75R16 diameter, sidewall, revolutions per mile, and plus-sizing options.
The LT225/75R16 tire size breaks down as: 225 mm section width, 75% aspect ratio, and a 16-inch rim. Below are its real, calculated dimensions.
LT225/75R16 Calculated Dimensions
| Metric | Value |
|---|---|
| Overall diameter | 29.3 in (744 mm) |
| Sidewall height | 6.6 in (169 mm) |
| Circumference | 92.0 in (2337 mm) |
| Revolutions per mile | 689 |
Typical Fitment
LT225/75R16 is most often found on mid-size pickups. Always confirm against the door-jamb placard or owner manual before fitting.
Plus-Sizing Alternatives
These sizes keep the overall diameter close to LT225/75R16, so speedometer and gearing stay near stock:
| Size | Diameter | Diameter change |
|---|---|---|
| 235/70R16 | 28.95 in | -1.1% |
| 235/65R17 | 29.03 in | -0.9% |
| 245/60R18 | 29.57 in | +1.0% |
Speedometer Note
If you fit a 235/70R16 instead of LT225/75R16, the diameter changes by -1.1%. A taller tire makes your speedometer read low — at a true 60 mph it would show roughly 61 mph. A shorter tire has the opposite effect, so the gauge reads high.
Use the tire calculator to compare LT225/75R16 against any other size and see the exact diameter and speedometer difference.
Frequently Asked Questions
What does LT225/75R16 mean?
LT225/75R16 means a 225 mm wide tire with a 75% sidewall aspect ratio mounted on a 16-inch rim. The aspect ratio is the sidewall height as a percentage of the width.
Can I plus-size from LT225/75R16?
Yes, as long as the replacement keeps the overall diameter close to stock so the speedometer stays accurate. Common plus-size moves from LT225/75R16 are 235/70R16, 235/65R17, 245/60R18.
Will LT225/75R16 affect my speedometer?
Only if it differs in diameter from your original size. A taller tire reads low; a shorter tire reads high. Compare the two sizes with the calculator to find the percentage.