245/70R17 tire size
A 245/70R17 tire is 245 mm wide with a 171.5 mm sidewall, 70% of the width, on a 17-inch rim, which puts the whole tire at 774.8 mm, or about 30.5 inches, tall. No model in our data leaves the factory on it, but it can replace the original size on 13 models within 3% of the height.
Overall height
774.8 mm
30.5 in
Sidewall
171.5 mm
70%
Circumference
2,434 mm
Revs per km
411
Actual dimensions of 245/70R17
| Section width | 245 mm (9.6 in) |
| Sidewall height | 171.5 mm (6.75 in) |
| Rim diameter | 17 in (431.8 mm) |
| Overall diameter | 774.8 mm (30.5 in) |
| Circumference | 2,434 mm |
| Revolutions per km | 411 |
| Inch notation (height x width) | 30.5x9.6R17 |
Worked out: sidewall 245 x 0.7 = 171.5 mm, rim 17 x 25.4 = 431.8 mm, overall 431.8 + (171.5 x 2) = 774.8 mm, circumference 3.1416 x 774.8 = 2,434 mm. One turn of the tire moves the car about 2.43 m, which is 411 turns per kilometer. New to sidewall codes? See how to read a tire size.
These are nominal figures from the standard formula. Real tires vary slightly by brand and squat a little under the weight of the car.
Cars fitted with 245/70R17 from the factory
No model sold in Thailand in our data leaves the factory on 245/70R17.
Cars that can switch to 245/70R17
These cars leave the factory on another size within 3% of the height of 245/70R17. Whether it fits still depends on rim width and wheel-well clearance.
| Model | Factory size | Height difference | Wheel |
|---|---|---|---|
| Toyota Fortuner2015–present | 265/65R17 | −0.19% | Same wheel |
| Toyota Hilux Revo2015–2025 | 265/65R17 | −0.19% | Same wheel |
| Toyota Hilux TRAVO2025–present | 265/65R17 | −0.19% | Same wheel |
| Mitsubishi Triton2024–present | 265/65R17 | −0.19% | Same wheel |
| Isuzu D-Max2020–present | 255/65R17 | +1.51% | Same wheel |
| Isuzu D-Max2012–2019 | 255/65R17 | +1.51% | Same wheel |
| Isuzu MU-X2021–present | 255/65R17 | +1.51% | Same wheel |
| Nissan Navara2021–present | 255/65R17 | +1.51% | Same wheel |
| Ford Ranger2022–present | 255/70R17 | −1.77% | Same wheel |
| Mitsubishi Triton2015–2023 | 265/60R18 | −0.05% | Needs 17-inch wheels |
| Ford Ranger2015–2021 | 265/60R18 | −0.05% | Needs 17-inch wheels |
| Nissan NP300 Navara2014–2020 | 255/70R16 | +1.49% | Needs 17-inch wheels |
Showing the 12 closest of 13 models.
Sizes that can replace 245/70R17
Sizes within ±3% of the overall height of 245/70R17. “At 100 km/h” is the real speed when the speedometer reads 100.
| Size | Height | Difference | At 100 km/h | Sidewall | Match | Compare |
|---|---|---|---|---|---|---|
| 265/60R18 | 775.2 mm | +0.4 mm (+0.05%) | 100.1 km/h | 159.0 mm | Very close | Compare |
| 245/75R16 | 773.9 mm | −0.9 mm (−0.12%) | 99.9 km/h | 183.8 mm | Very close | Compare |
| 265/65R17 | 776.3 mm | +1.5 mm (+0.19%) | 100.2 km/h | 172.3 mm | Very close | Compare |
| 265/70R16 | 777.4 mm | +2.6 mm (+0.34%) | 100.3 km/h | 185.5 mm | Very close | Compare |
| 255/70R16 | 763.4 mm | −11.4 mm (−1.47%) | 98.5 km/h | 178.5 mm | Close | Compare |
| 255/65R17 | 763.3 mm | −11.5 mm (−1.48%) | 98.5 km/h | 165.8 mm | Close | Compare |
| 255/60R18 | 763.2 mm | −11.6 mm (−1.50%) | 98.5 km/h | 153.0 mm | Close | Compare |
| 255/55R19 | 763.1 mm | −11.7 mm (−1.51%) | 98.5 km/h | 140.3 mm | Close | Compare |
- Keeping your wheels, the closest is 265/65R17 at 776.3 mm, +1.5 mm (+0.19%) from the original. With the speedometer on 100 km/h, the car would actually be doing about 100.2 km/h. Ground clearance rises by about 0.8 mm.
- Moving up to 18-inch wheels, the closest height match is 265/60R18 (+0.05%), with the sidewall dropping from 171.5 mm to 159.0 mm.
- Going down to 16-inch wheels, 245/75R16 (−0.12%) is the closest match and raises the sidewall to 183.8 mm.
- A larger or wider tire also changes acceleration, fuel use and steering weight, so look beyond the percentage.
Buying 245/70R17 tires
Pickup sizes like this come in quieter, softer H/T tread for paved roads and A/T tread for gravel, which costs more and is noisier. Choose for the roads you actually drive.
Check the production date in the DOT code before paying.
Check current prices
Search by brand
Links open marketplace search results; prices change constantly and not every brand makes this size.
Load index and speed rating for 245/70R17
This size comes in both passenger and LT construction with very different load ratings, so there is no single figure to quote. Go by the number on your current sidewall and the door placard.
The new tire's load index and speed symbol must be no lower than the door placard, and it only carries its rated load at the correct pressure.
Common speed symbols in this size
S
180 km/h
T
190 km/h
H
210 km/h
245/70R17 questions
How tall is a 245/70R17 tire?
About 30.5 inches, or 774.8 mm, from top to bottom before it carries weight. Each sidewall is 171.5 mm tall and the tire is 245 mm (9.6 in) wide.
Which cars use 245/70R17 tires?
No car in our data is fitted with 245/70R17 from the factory, but its height is close to the original size on Toyota Fortuner, Toyota Hilux Revo, Toyota Hilux TRAVO, Mitsubishi Triton and Isuzu D-Max, so it works as a replacement size.
Can I fit 265/65R17 instead of 245/70R17?
Size-wise, yes: the height differs by +0.19% (+1.5 mm), so an indicated 100 km/h is really about 100.2 km/h. The tread is 20 mm wider. Check rim width and load index first.
Other 17-inch sizes
To compare other sizes yourself, use the tire size calculator; changing rim size, try plus/minus sizing; and see speedometer error by speed.