225/40R19 tires: size explained
225/40R19 is a Euro-metric tire size. It is about 26.1 in (663 mm) tall, 225 mm wide, and made for a 19-inch wheel.
What 225/40R19 means
A tire size describes the tire's shape and the wheel it fits. It says nothing about load capacity or speed capability, which are printed separately on the sidewall.
- No letterEuro-metric
- With no letter in front of the width, this is a Euro-metric size (also called hard metric). It has the same dimensions as the P-metric version but is built to a different load standard, so its load capacity can differ.
- 225Section width
- The tire's width is 225 millimeters (8.9 in), measured from sidewall to sidewall.
- 40Aspect ratio
- The sidewall height is 40% of the width. For 225 mm that is about 3.5 in (90 mm). A smaller number means a shorter sidewall.
- RRadial construction
- R means radial construction, where the internal cords run across the tire from one edge to the other.
- 19Wheel (rim) diameter
- The tire is made for a wheel 19 inches across. Its overall diameter is larger: about 26.1 in (663 mm).
225/40R19 dimensions
- Section width
- 8.9 in (225 mm)
- Sidewall height
- 3.5 in (90 mm)
- Wheel (rim) diameter
- 19.0 in (483 mm)
- Overall diameter
- 26.1 in (663 mm)
- Circumference
- 82.0 in (2082 mm)
- Revolutions per mile
- 773
These are nominal design dimensions. Real tires vary by brand, tread depth, wheel width, load and pressure.
Which vehicles use 225/40R19?
These vehicles list 225/40R19 among their verified sizes, by trim. Open one to see all of its sizes.
- 2026 BMW 3 Series M340i xDrive 50 Jahre Edition
- 2025 BMW 3 Series M340i
- 2025 BMW 3 Series M340i xDrive
- 2021 BMW 3 Series 330e(front)
- 2021 BMW 3 Series 330e xDrive(front)
- 2026 Genesis G70 2.5T(front)
- 2026 Genesis G70 2.5T Prestige(front)
- 2026 Genesis G70 3.3T Sport Prestige(front)
- 2025 Genesis G70 2.5T(front)
- 2025 Genesis G70 3.3T(front)
- 2023 Kia Stinger GT2(front)
Shop for 225/40R19 tires
Confirm the size on your tire sidewall or door placard first. These links open each store's own search for 225/40R19; prices and stock are on their sites.
- Search 225/40R19 at Tire Rack
- Search 225/40R19 at Discount Tire
- Search 225/40R19 at SimpleTire
- Search 225/40R19 at Amazon
- Search 225/40R19 at Priority Tire
We may earn a commission if you buy through these links. It doesn't change the price you pay. Read our affiliate disclosure.
Snow chains and tire socks for 225/40R19
Where winter roads call for extra traction, chains and tire socks are two options that fit over your tires. They are made for specific tire sizes, so these links open Amazon searches for 225/40R19. Whether they suit your vehicle depends on its clearance and the local rules.
Paid links to Amazon search results. As an Amazon Associate I earn from qualifying purchases. Read our affiliate disclosure.
Before you buy
- Chains and socks are sold by tire size, so match the size on your sidewall exactly.
- Check your owner's manual first: many newer cars and SUVs limit or prohibit chains, or require low-profile (often called SAE Class S) chains because of tight wheel-well clearance.
- Tire socks are a lighter-duty option; check your state's rules, because some areas only accept chains when chain controls are in effect.
- Put them on the drive wheels (or as your manual says) and follow the maker's speed limit.
Similar sizes
These common sizes have an overall diameter within about 3% of 225/40R19. A common rule of thumb is to keep a replacement size within about 3% of the original overall diameter. Confirm any size change with your vehicle's owner's manual or a tire professional.
| Size | Wheel diameter | Diameter difference | Calculator |
|---|---|---|---|
| 245/40R19 | 19 in (same) | +2.41% | Compare 225/40R19 with 245/40R19 |
| 215/60R16 | 16 in (different) | +0.27% | Compare 225/40R19 with 215/60R16 |
| 215/55R17 | 17 in (different) | +0.86% | Compare 225/40R19 with 215/55R17 |
| 225/50R17 | 17 in (different) | -0.88% | Compare 225/40R19 with 225/50R17 |
| 235/45R18 | 18 in (different) | +0.92% | Compare 225/40R19 with 235/45R18 |
| 205/60R16 | 16 in (different) | -1.54% | Compare 225/40R19 with 205/60R16 |
| 225/60R16 | 16 in (different) | +2.08% | Compare 225/40R19 with 225/60R16 |
| 245/45R18 | 18 in (different) | +2.28% | Compare 225/40R19 with 245/45R18 |
| 225/55R17 | 17 in (different) | +2.52% | Compare 225/40R19 with 225/55R17 |
Same dimensions, different load standard
P225/40R19 (P-metric) has the same dimensions as 225/40R19, but it is built to a different load standard. Check the load index on the sidewall rather than assuming the two are interchangeable.
Compare 225/40R19 with similar sizes
Side-by-side dimensions and speedometer difference for sizes close to 225/40R19 in overall diameter.
- 215/60R16 vs 225/40R19+0.27% taller than 225/40R19
- 225/40R19 vs 225/45R18-0.44% shorter than 225/40R19
- 225/40R19 vs 305/30R19+0.45% taller than 225/40R19
- 195/60R17 vs 225/40R19+0.48% taller than 225/40R19
- 205/55R17 vs 225/40R19-0.80% shorter than 225/40R19
- 225/40R19 vs 235/45R18+0.92% taller than 225/40R19
- 225/40R19 vs 245/30R20-1.15% shorter than 225/40R19
- 225/40R19 vs 245/40R18-1.42% shorter than 225/40R19
- 215/50R18 vs 225/40R19+1.45% taller than 225/40R19
Compare 225/40R19 with another size
See how another size differs in height, width, sidewall and speedometer reading in the tire size calculator.
Compare 225/40R19 with another sizeQuestions about 225/40R19
What does 225/40R19 mean?
225/40R19 describes the shape and size of a tire, not how much it can carry or how fast it can go. 225 is the width in millimeters, 40 is the sidewall height as a percentage of that width (about 90 mm), R is the construction type and 19 is the wheel diameter in inches.
How tall is a 225/40R19 tire?
A 225/40R19 tire has a nominal overall diameter of about 26.1 in (663 mm), with a sidewall about 3.5 in (90 mm) tall. These are nominal design dimensions. Real tires vary by brand, tread depth, wheel width, load and pressure.
How many revolutions per mile does a 225/40R19 tire make?
About 773 revolutions per mile, based on a circumference of 82.0 in (2082 mm). A vehicle's speedometer and odometer are calibrated to the tire size it was built with, so a size with a different overall diameter changes what they read. A common rule of thumb is to keep a replacement size within about 3% of the original overall diameter. Confirm any size change with your vehicle's owner's manual or a tire professional.
Is 225/40R19 the same as P225/40R19?
They have the same dimensions: both are about 26.1 in (663 mm) tall and 225 mm wide. They are built to different load standards, though (Euro-metric and P-metric), so the load a tire can carry can differ. Check the load index on the sidewall, and ask a tire professional or your owner's manual before treating them as interchangeable.
Which sizes have a similar diameter to 225/40R19?
Among the common sizes we list, these are within about 3% of the overall diameter of 225/40R19: 245/40R19 (+2.41%), 215/60R16 (+0.27%), 215/55R17 (+0.86%), and 6 more. Diameter is only one measure. Width, wheel diameter, load capacity and clearance matter too. Confirm any size change with your vehicle's owner's manual or a tire professional.
You might also need
- Digital tire pressure gauge (Amazon search, opens in a new tab)
Check your tire pressure against the number on your door placard.
- Portable tire inflator (Amazon search, opens in a new tab)
Top up a low tire at home without a trip to the gas station.
- Tire tread depth gauge (Amazon search, opens in a new tab)
Measure how much tread is left before you decide to replace.
- Lug wrench or torque wrench (Amazon search, opens in a new tab)
Useful for rotations and tire changes; follow the torque spec in your owner's manual.
Paid links to Amazon search results. As an Amazon Associate I earn from qualifying purchases. Read our affiliate disclosure.