205/45R17 tire size
A 205/45R17 tire is 205 mm wide with a 92.3 mm sidewall, 45% of the width, on a 17-inch rim, which puts the whole tire at 616.3 mm, or about 24.3 inches, tall. No model in our data leaves the factory on it, but it can replace the original size on 11 models within 3% of the height.
Overall height
616.3 mm
24.3 in
Sidewall
92.3 mm
45%
Circumference
1,936 mm
Revs per km
516
Actual dimensions of 205/45R17
| Section width | 205 mm (8.1 in) |
| Sidewall height | 92.3 mm (3.63 in) |
| Rim diameter | 17 in (431.8 mm) |
| Overall diameter | 616.3 mm (24.3 in) |
| Circumference | 1,936 mm |
| Revolutions per km | 516 |
| Inch notation (height x width) | 24.3x8.1R17 |
Worked out: sidewall 205 x 0.45 = 92.25 mm, rim 17 x 25.4 = 431.8 mm, overall 431.8 + (92.25 x 2) = 616.3 mm, circumference 3.1416 x 616.3 = 1,936 mm. One turn of the tire moves the car about 1.94 m, which is 516 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 205/45R17 from the factory
No model sold in Thailand in our data leaves the factory on 205/45R17.
Cars that can switch to 205/45R17
These cars leave the factory on another size within 3% of the height of 205/45R17. Whether it fits still depends on rim width and wheel-well clearance.
| Model | Factory size | Height difference | Wheel |
|---|---|---|---|
| MG3 HYBRID+Current model | 195/55R16 | −0.74% | Needs 17-inch wheels |
| Mazda22015–present | 185/65R15 | −0.84% | Needs 17-inch wheels |
| Suzuki Ertiga2019–present | 185/65R15 | −0.84% | Needs 17-inch wheels |
| Honda City2014–2019 | 185/55R16 | +1.05% | Needs 17-inch wheels |
| Honda City / City Hatchback2020–2023 | 185/55R16 | +1.05% | Needs 17-inch wheels |
| Honda Jazz (GK)2014–2021 | 185/55R16 | +1.05% | Needs 17-inch wheels |
| Suzuki Swift2018–2023 | 185/55R16 | +1.05% | Needs 17-inch wheels |
| Honda City / City Hatchback2023–present | 185/60R16 | −1.93% | Needs 17-inch wheels |
| Toyota Vios2013–2022 | 185/60R15 | +2.21% | Needs 17-inch wheels |
| Toyota Yaris (Hatchback)2017–present | 185/60R15 | +2.21% | Needs 17-inch wheels |
| Toyota Yaris ATIV2017–2022 | 185/60R15 | +2.21% | Needs 17-inch wheels |
Sizes that can replace 205/45R17
Sizes within ±3% of the overall height of 205/45R17. “At 100 km/h” is the real speed when the speedometer reads 100.
| Size | Height | Difference | At 100 km/h | Sidewall | Match | Compare |
|---|---|---|---|---|---|---|
| 235/40R17 | 619.8 mm | +3.5 mm (+0.57%) | 100.6 km/h | 94.0 mm | Close | Compare |
| 195/55R16 | 620.9 mm | +4.6 mm (+0.75%) | 100.7 km/h | 107.3 mm | Close | Compare |
| 205/50R16 | 611.4 mm | −4.9 mm (−0.80%) | 99.2 km/h | 102.5 mm | Close | Compare |
| 185/55R16 | 609.9 mm | −6.4 mm (−1.04%) | 99.0 km/h | 101.8 mm | Close | Compare |
| 215/45R17 | 625.3 mm | +9.0 mm (+1.46%) | 101.5 km/h | 96.8 mm | Close | Compare |
| 185/60R16 | 628.4 mm | +12.1 mm (+1.96%) | 102.0 km/h | 111.0 mm | Close | Compare |
| 215/40R17 | 603.8 mm | −12.5 mm (−2.03%) | 98.0 km/h | 86.0 mm | Within range | Compare |
| 215/40R18 | 629.2 mm | +12.9 mm (+2.09%) | 102.1 km/h | 86.0 mm | Within range | Compare |
- Keeping your wheels, the closest is 235/40R17 at 619.8 mm, +3.5 mm (+0.57%) from the original. With the speedometer on 100 km/h, the car would actually be doing about 100.6 km/h. Ground clearance rises by about 1.8 mm.
- Moving up to 18-inch wheels, the closest height match is 215/40R18 (+2.09%), with the sidewall dropping from 92.3 mm to 86.0 mm.
- Going down to 16-inch wheels, 195/55R16 (+0.75%) is the closest match and raises the sidewall to 107.3 mm.
- A larger or wider tire also changes acceleration, fuel use and steering weight, so look beyond the percentage.
Buying 205/45R17 tires
Low-profile sizes are mostly performance tires and price rises with W or Y speed ratings; comfort-focused models exist in the same size if you do not drive hard.
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 205/45R17
The code after the size on the sidewall, as in 205/45R17 84V, is the load index and speed symbol. The common ratings for this size:
| Version | Index | Per tire | Four tires |
|---|---|---|---|
| Standard load (SL) | 84 | 500 kg | 2,000 kg |
| Extra load (XL) | 88 | 560 kg | 2,240 kg |
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
V
240 km/h
W
270 km/h
205/45R17 questions
How tall is a 205/45R17 tire?
About 24.3 inches, or 616.3 mm, from top to bottom before it carries weight. Each sidewall is 92.3 mm tall and the tire is 205 mm (8.1 in) wide.
Which cars use 205/45R17 tires?
No car in our data is fitted with 205/45R17 from the factory, but its height is close to the original size on MG3 HYBRID+, Mazda2, Suzuki Ertiga, Honda City and Honda City / City Hatchback, so it works as a replacement size.
Can I fit 235/40R17 instead of 205/45R17?
Size-wise, yes: the height differs by +0.57% (+3.5 mm), so an indicated 100 km/h is really about 100.6 km/h. The tread is 30 mm wider. Check rim width and load index first.
How much weight can a 205/45R17 tire carry?
Most standard-load versions carry load index 84: 500 kg per tire, 2,000 kg across four. XL versions are rated 88, or 560 kg per tire. Look for the number after the size on the sidewall, as in 205/45R17 84V.
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.