# BMW 6 Series 645Ci tire sizes

> Compatible tire sizes by model year and trim. Pick a size to see prices.

<https://tkr.az/en/cars/bmw/645ci>

## Base

| Fitment | Front | Rear | Years |
| --- | --- | --- | --- |
| — | [245/40R19](https://tkr.az/en/tires/245-40-r19?vehicle=bmw%2F645ci) | [275/35R19](https://tkr.az/en/tires/275-35-r19?vehicle=bmw%2F645ci) | Compare front and rear sizes: [2005](https://tkr.az/en/cars/fitment/84e6e6a5-d903-4fc8-b745-502ae068cfcd), [2004](https://tkr.az/en/cars/fitment/640b79c0-5a76-402c-9773-1a7801c5339d) |
| — | [245/45R18](https://tkr.az/en/tires/245-45-r18?vehicle=bmw%2F645ci) | [245/45R18](https://tkr.az/en/tires/245-45-r18?vehicle=bmw%2F645ci) | 2004–2005 |
| — | [245/35R20](https://tkr.az/en/tires/245-35-r20?vehicle=bmw%2F645ci) | [275/30R20](https://tkr.az/en/tires/275-30-r20?vehicle=bmw%2F645ci) | Compare front and rear sizes: [2005](https://tkr.az/en/cars/fitment/e1d78387-3a5a-4c14-be60-a39a40416bd7), [2004](https://tkr.az/en/cars/fitment/bd7b7a02-6e42-4032-ad26-d87e5110d586) |
| — | [245/45R18](https://tkr.az/en/tires/245-45-r18?vehicle=bmw%2F645ci) | [275/35R18](https://tkr.az/en/tires/275-35-r18?vehicle=bmw%2F645ci) | Compare front and rear sizes: [2005](https://tkr.az/en/cars/fitment/bf5277ee-5796-4a2c-80c7-7672c9bc3e69), [2004](https://tkr.az/en/cars/fitment/3f4ba34e-4582-428f-aa47-80c8ed895215) |

Sizes for the BMW 6 Series 645Ci trim are based on fitment data. Check the exact size on your car's current tires or in the owner's manual.

## By model year

[2005](https://tkr.az/en/cars/bmw/645ci/2005) · [2004](https://tkr.az/en/cars/bmw/645ci/2004)

## Other models in this family

Check the tire sizes for each model separately.

- [BMW 640i](https://tkr.az/en/cars/bmw/640i)
- [BMW 640i Gran Coupe](https://tkr.az/en/cars/bmw/640i-gran-coupe)
- [BMW 640i xDrive](https://tkr.az/en/cars/bmw/640i-xdrive)
- [BMW 640i xDrive Gran Coupe](https://tkr.az/en/cars/bmw/640i-xdrive-gran-coupe)
- [BMW 640i xDrive Gran Turismo](https://tkr.az/en/cars/bmw/640i-xdrive-gran-turismo)
- [BMW 650i](https://tkr.az/en/cars/bmw/650i)
- [BMW 650i Gran Coupe](https://tkr.az/en/cars/bmw/650i-gran-coupe)
- [BMW 650i xDrive](https://tkr.az/en/cars/bmw/650i-xdrive)