225/45R19 tire size
A 225/45R19 tire is 225 mm wide with a 101.3 mm sidewall, 45% of the width, on a 19-inch rim, which puts the whole tire at 685.1 mm, or about 27.0 inches, tall. No model in our data leaves the factory on it, but it can replace the original size on 23 models within 3% of the height.
Overall height
685.1 mm
27.0 in
Sidewall
101.3 mm
45%
Circumference
2,152 mm
Revs per km
465
Actual dimensions of 225/45R19
| Section width | 225 mm (8.9 in) |
| Sidewall height | 101.3 mm (3.99 in) |
| Rim diameter | 19 in (482.6 mm) |
| Overall diameter | 685.1 mm (27.0 in) |
| Circumference | 2,152 mm |
| Revolutions per km | 465 |
| Inch notation (height x width) | 27.0x8.9R19 |
Worked out: sidewall 225 x 0.45 = 101.25 mm, rim 19 x 25.4 = 482.6 mm, overall 482.6 + (101.25 x 2) = 685.1 mm, circumference 3.1416 x 685.1 = 2,152 mm. One turn of the tire moves the car about 2.15 m, which is 465 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 225/45R19 from the factory
No model sold in Thailand in our data leaves the factory on 225/45R19.
Cars that can switch to 225/45R19
These cars leave the factory on another size within 3% of the height of 225/45R19. Whether it fits still depends on rim width and wheel-well clearance.
| Model | Factory size | Height difference | Wheel |
|---|---|---|---|
| BYD Seal2023–present | 235/45R19 | −1.30% | Same wheel |
| Tesla Model 32024–present | 235/40R19 | +2.16% | Same wheel |
| Toyota C-HR2018–2023 | 225/50R18 | +0.43% | Needs 19-inch wheels |
| Toyota Corolla Cross2020–present | 225/50R18 | +0.43% | Needs 19-inch wheels |
| Toyota Innova Zenix HEV2023–present | 225/50R18 | +0.43% | Needs 19-inch wheels |
| Honda e:N12024–present | 225/50R18 | +0.43% | Needs 19-inch wheels |
| Honda HR-V e:HEV2022–present | 225/50R18 | +0.43% | Needs 19-inch wheels |
| Mitsubishi Xforce HEVCurrent model | 225/50R18 | +0.43% | Needs 19-inch wheels |
| Toyota Yaris Cross HEV2023–present | 215/60R17 | −0.68% | Needs 19-inch wheels |
| MG HS / HS PHEVCurrent model | 215/60R17 | −0.68% | Needs 19-inch wheels |
| BYD ATTO 32022–present | 215/60R17 | −0.68% | Needs 19-inch wheels |
| Mazda CX-302020–present | 215/55R18 | −1.24% | Needs 19-inch wheels |
Showing the 12 closest of 23 models.
Sizes that can replace 225/45R19
Sizes within ±3% of the overall height of 225/45R19. “At 100 km/h” is the real speed when the speedometer reads 100.
| Size | Height | Difference | At 100 km/h | Sidewall | Match | Compare |
|---|---|---|---|---|---|---|
| 255/35R20 | 686.5 mm | +1.4 mm (+0.20%) | 100.2 km/h | 89.3 mm | Very close | Compare |
| 255/40R19 | 686.6 mm | +1.5 mm (+0.22%) | 100.2 km/h | 102.0 mm | Very close | Compare |
| 255/45R18 | 686.7 mm | +1.6 mm (+0.23%) | 100.2 km/h | 114.8 mm | Very close | Compare |
| 225/50R18 | 682.2 mm | −2.9 mm (−0.42%) | 99.6 km/h | 112.5 mm | Very close | Compare |
| 245/35R20 | 679.5 mm | −5.6 mm (−0.82%) | 99.2 km/h | 85.8 mm | Close | Compare |
| 245/40R19 | 678.6 mm | −6.5 mm (−0.95%) | 99.1 km/h | 98.0 mm | Close | Compare |
| 235/50R18 | 692.2 mm | +7.1 mm (+1.04%) | 101.0 km/h | 117.5 mm | Close | Compare |
| 245/45R18 | 677.7 mm | −7.4 mm (−1.08%) | 98.9 km/h | 110.3 mm | Close | Compare |
- Keeping your wheels, the closest is 255/40R19 at 686.6 mm, +1.5 mm (+0.22%) 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 20-inch wheels, the closest height match is 255/35R20 (+0.20%), with the sidewall dropping from 101.3 mm to 89.3 mm.
- Going down to 18-inch wheels, 255/45R18 (+0.23%) is the closest match and raises the sidewall to 114.8 mm.
- A larger or wider tire also changes acceleration, fuel use and steering weight, so look beyond the percentage.
Buying 225/45R19 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 225/45R19
The code after the size on the sidewall, as in 225/45R19 92V, is the load index and speed symbol. The common ratings for this size:
| Version | Index | Per tire | Four tires |
|---|---|---|---|
| Standard load (SL) | 92 | 630 kg | 2,520 kg |
| Extra load (XL) | 96 | 710 kg | 2,840 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
225/45R19 questions
How tall is a 225/45R19 tire?
About 27.0 inches, or 685.1 mm, from top to bottom before it carries weight. Each sidewall is 101.3 mm tall and the tire is 225 mm (8.9 in) wide.
Which cars use 225/45R19 tires?
No car in our data is fitted with 225/45R19 from the factory, but its height is close to the original size on BYD Seal, Tesla Model 3, Toyota C-HR, Toyota Corolla Cross and Toyota Innova Zenix HEV, so it works as a replacement size.
Can I fit 255/40R19 instead of 225/45R19?
Size-wise, yes: the height differs by +0.22% (+1.5 mm), so an indicated 100 km/h is really about 100.2 km/h. The tread is 30 mm wider. Check rim width and load index first.
How much weight can a 225/45R19 tire carry?
Most standard-load versions carry load index 92: 630 kg per tire, 2,520 kg across four. XL versions are rated 96, or 710 kg per tire. Look for the number after the size on the sidewall, as in 225/45R19 92V.
Other 19-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.