BMW Tire Calculator
Tire sizes from BMW specifications, how BMW xDrive front and rear pairs compare, and M-series staggered setups.
Quick Answer
- Tire sizes for BMW models come from BMW Group PressClub specifications: for example 225/45R18 front and 255/40R18 rear on the M340i xDrive, and 275/35R19 front with 285/30R20 rear on the M3 and M4.
- BMW publishes no xDrive tolerance percentage. Its own front and rear pairs differ by 0.07% to 0.72% (calculated), for example 0.58% for the M3 and M4 pair.
- Always confirm the size, load index and speed rating on your own car's placard.
BMW Tire Quick Reference
Common BMW tire questions answered in one line. Expand the sections below for full detail.
xDrive tire swap
BMW publishes no percentage, but BMW Australia asks xDrive owners to keep all four tyres as similar in rolling circumference as possible. BMW's own front and rear pairs differ by 0.07% to 0.72% (calculated).
M series staggered setup
M3/M4 (G80/G82): 275/35R19 front, 285/30R20 rear (OEM 18/19 combo is 275/40R18 + 285/35R19). Never rotate staggered tires side-to-side.
Replace run-flats with conventional?
Check your owner's manual or ask a BMW dealer. A BMW run-flat tire is designed to be driven flat for a limited distance; a conventional tire is not, so you would need another way to deal with a flat. Match the size, load index and speed rating on your tire placard.
Winter tires on xDrive
Fit winter tires in sets of four in an approved size (see the Winter Tire Sizing Guide). NHTSA says summer tires are not designed to operate in temperatures below freezing or on snow and ice, and that winter tires are more effective than all-season tires in deep snow.
BMW bolt pattern quick check
Bolt pattern and centre bore differ between older and newer BMW chassis. Confirm the specification for your exact car with a BMW dealer before ordering wheels.
OEM Tire Sizes by BMW Model
Factory tire sizes for current and recent BMW models. Sizes may vary by trim level and optional wheel packages. Always cross-check against the door jamb sticker on your specific vehicle.
| Model | Chassis | Years | Front | Rear | Notes |
|---|---|---|---|---|---|
| 2 Series Coupé (2025) | G42 | 2022–present | 225/45R18 | Same (square) | BMW lists 225/45R18 on all four wheels in the 2025 specification |
| 3 Series (G20) | G20 | 2019–present | 225/45R18 | 255/40R18 | M340i xDrive staggered (BMW 3 Series Touring sheet). Base is 225/50R17 square |
| 4 Series (G22/G23) | G22/G23 | 2021–present | 225/45R18 | 255/40R18 | M440i 19 inch option: 225/40R19 + 255/35R19 (2021 US kit) |
| 5 Series (G60) | G60 | 2024–present | 245/45R19 | 275/40R19 | 530i xDrive standard 19 inch pair (2024 kit) |
| M2 (G87) | G87 | 2023–present | 275/35R19 | 285/30R20 | Rear-wheel drive. Same sizes on the 2026 M2 Turbo Design Edition |
| M3 (G80) | G80 | 2021–present | 275/40R18 / 275/35R19 | 285/35R19 / 285/30R20 | Standard 18/19 and optional 19/20 pairs (2025 US specification) |
| M4 (G82) | G82 | 2021–present | 275/35R19 | 285/30R20 | Standard 19/20 pair (2025 US specification) |
| M5 (2025) | n/a | 2024–present | 285/40R20 | 295/35R21 | Same pair on the M5 Touring |
| X3 (G45) | G45 | 2024–present | 245/50R19 | Same (square) | Standard 19 inch (2025 US specification) |
| X5 (G05) | G05 | 2019–present | 265/50R19 / 275/45R20 / 275/40R21 | Same / Same / 315/35R21 | 22 inch option: 275/35R22 + 315/30R22 (2019 US kit) |
Source: BMW Group PressClub technical specifications (2 Series Coupé, 3 Series Touring, 4 Series, 5 Series, M2, M3, M4, M5, X3 and X5). Sizes vary by market, year and package, so verify with your door jamb sticker for exact OEM size.
BMW xDrive Tire Rules
BMW Australia's tyre FAQ says that on xDrive models all four tyres should have as similar a rolling circumference as possible. BMW publishes no percentage. The front and rear pairs below are the sizes BMW lists, with the gap calculated from the nominal overall diameter.
| Model | Front | Rear | Gap |
|---|---|---|---|
| M340i xDrive (3 Series Touring spec sheet) | 225/45R18 | 255/40R18 | 0.23% |
| X5 (2019) 21 inch option | 275/40R21 | 315/35R21 | 0.07% |
| X5 (2019) 22 inch option | 275/35R22 | 315/30R22 | 0.47% |
| M5 (2025) xDrive | 285/40R20 | 295/35R21 | 0.53% |
| M3 / M4 (2025) 19 and 20 inch | 275/35R19 | 285/30R20 | 0.58% |
| M3 (2025) standard 18 and 19 inch | 275/40R18 | 285/35R19 | 0.72% |
Check your own pair with the BMW xDrive tire calculator. What other makers say is in the AWD tire size guide, and the staggered fitment calculator works for any make.
M Series Staggered Fitment Guide
All BMW M cars use staggered fitment from the factory: wider tires at the rear to maximise traction under acceleration. Key rules: do not rotate staggered directional tires side-to-side; track setups may use square fitments for rotation capability.
| Model | Front (OEM) | Rear (OEM) | Front Wheel | Rear Wheel | Notes |
|---|---|---|---|---|---|
| M2 (G87) | 275/35R19 | 285/30R20 | 9.5J×19 | 10.5J×20 | Rear-wheel drive |
| M3 (G80) standard | 275/40R18 | 285/35R19 | 9.5J×18 | 10.5J×19 | About 0.7% front to rear |
| M3 (G80) 19/20 option | 275/35R19 | 285/30R20 | 9.5J×19 | 10.5J×20 | About 0.6% front to rear |
| M4 Coupé (G82) | 275/35R19 | 285/30R20 | 9.5J×19 | 10.5J×20 | Standard pair |
| M5 (2025) | 285/40R20 | 295/35R21 | 10.5J×20 | 11.0J×21 | About 0.5% front to rear |
BMW Run-Flat Tires
BMW's 1 Series owner's manual says run-flat tires are marked with a circle containing the letters RSC on the sidewall, and that they comprise a conditionally self-supporting tire and a special rim: the reinforced sidewalls allow the tire to continue to be used, subject to restrictions, even when depressurized. Follow the instructions in your own owner's manual for driving on a flat, and ask a BMW dealer before replacing run-flats with a different type. Whatever you fit must match the size, load index and speed rating on your placard. For sizes and speeds see the speed rating calculator and the load index calculator.
BMW Chassis Code Cross-Reference
BMW owners frequently search by chassis code (e.g., "E46 tire size", "F30 wheels"). Use this table to identify your chassis and find the corresponding OEM sizes in the table above.
| Chassis Code | Model Name | Years | Drive Type |
|---|---|---|---|
| E46 | 3 Series | 1998–2006 | RWD / xDrive |
| E90/E92/E93 | 3 Series | 2005–2012 | RWD / xDrive |
| E60/E61 | 5 Series | 2003–2010 | RWD / xDrive |
| E82/E88 | 1 Series Coupé/Conv | 2007–2013 | RWD |
| F20/F21 | 1 Series (5-door) | 2011–2019 | RWD / xDrive |
| F30/F31 | 3 Series | 2012–2019 | RWD / xDrive |
| F10/F11 | 5 Series | 2010–2017 | RWD / xDrive |
| F80 | M3 | 2014–2018 | RWD |
| F82/F83 | M4 Coupé/Conv | 2014–2020 | RWD |
| F25 | X3 | 2010–2017 | xDrive |
| F15 | X5 | 2013–2018 | xDrive |
| G20/G21 | 3 Series | 2019–present | RWD / xDrive |
| G80 | M3 | 2021–present | RWD / xDrive |
| G82/G83 | M4 Coupé/Conv | 2021–present | RWD / xDrive |
| G01 | X3 | 2018–2023 | xDrive |
| G45 | X3 | 2024–present | xDrive |
| G05 | X5 | 2019–present | xDrive |
| G07 | X7 | 2019–present | xDrive |
BMW Bolt Pattern & Wheel Fitment
Bolt pattern, centre bore and wheel bolt thread differ between older and newer BMW chassis. BMW does not publish a general chart we could source, so confirm the specification for your exact car with a BMW dealer or the BMW parts catalogue before ordering aftermarket wheels. Do not rely on adapters to make a mismatched wheel fit. Once you have a wheel, the wheel offset and backspacing calculator and the inner and outer clearance estimator cover how it will sit.
Frequently Asked Questions
Try the BMW Tire Size Calculator
Compare OEM vs aftermarket sizes for any BMW model: with an xDrive front and rear check against BMW's factory pairs, M-series staggered presets, and speedometer error built in.
All tools and information provided on TireCalculatorHub are for informational purposes only. Always consult your vehicle's manufacturer manual and a qualified professional before making decisions about your vehicle's tires or modifications. TireCalculatorHub is not liable for any damages or issues arising from the use of information or tools on this website.