175 is the tyre width in millimetres, 70 is the profile (the sidewall height is about 122.5 mm), R means radial construction, and 12 is the wheel rim diameter in inches. If your current sidewall shows the same code, you are shopping the correct size.
Yes. Both markings describe the same size and fitment, with the spacing varying by manufacturer, retailer, or how the size is printed on the tyre.
It is not a like-for-like swap. The width increases by 10 mm and the overall diameter rises by roughly 14 mm (around 2.6%), which can affect clearance, steering feel, gearing and speedometer reading. Check your vehicle placard or handbook and confirm your wheel width and arch clearance before changing sizes.
Use the ratings listed on your current tyres or the vehicle manufacturer specification, and choose the same or higher. Common options in 175/70 R12 can vary by brand, so filter by the exact load and speed rating you need before adding to basket.
Most modern 175/70 R12 tyres are tubeless, but some older rims and classic applications still use inner tubes. If your wheels are not designed for tubeless sealing or you are unsure about rim condition, ask your fitter to check and advise whether a correctly sized tube and valve are required.
