Half inch to one inch
Look on the side of the tire and you will see a set of number such as 195/50 17R. The first number, in this case 195, is the tread width in millimeters.
No, a 195/65 R15 and a 215/70 R15 tire are not interchangeable. The first number indicates the tire's width in millimeters, and the second number represents the aspect ratio, which is the height of the sidewall as a percentage of the width. The differences in width and aspect ratio result in different overall diameters and circumferences, which can affect vehicle handling, speedometer accuracy, and clearance in the wheel well. Always consult a tire professional before making any changes.
It usually can
Firstly, It depends on the width of your rim, a 195 is typically best suited to a 7" rim whereas a 215 is typically suited to an 8" rim. If 195 was the stock tire size then it is most likely a 7" rim and a 215 will fit width wise but will stick out more and may rub on your inner fenders if there isn't enough clearance. As for a 195/60 compared to a 215/ 60, the tire is around an inch larger in diameter which will cause your speedometer to need to be recalibrated. If you got a 215/55/15 it would only be .1 inch larger which would keep your speedometer readings nearly the same.
Shouldn't be a problem if the rim size is the same.
The width, by 10 mm
215/70R15 (215 - height - 70 Width) R15 - rim size.
The 195's are a l skinner then the 215's across the tread and will cause damage to the sidewalk and eventually the tire will fail. It will also cause a tire to ware out
215 60 r15 is smaller, 215 being the width of the tyre, 60 being the height of the wall (% of the width) and r15 being the radius of the wheel
Oh, dude, technically you can substitute a 215 60 R16 tire for a 195 60 R16 tire because they have the same rim diameter and aspect ratio, but the 215 is wider. It might affect your speedometer accuracy and handling slightly, but hey, if you're feeling adventurous, go for it. Just make sure your car can handle the extra width, like, don't force it into skinny jeans if it's more of a cargo pants kind of ride.
10 cm of tread width is thee difference
The metric equivalent of a GR-70-15 tire is around 215/75R15. This means the tire has a width of approximately 215 millimeters and an aspect ratio of 75, which indicates the tire's height is 75% of its width. The 15 represents the diameter of the wheel in inches.