245 is the tyre width in millimetres, 70 is the sidewall height as a percentage of the width, R means radial construction, and 16 is the wheel diameter in inches. To ensure it is the correct fit, match the full size printed on your current tyre sidewall and confirm the required load index and speed rating from your vehicle handbook or door placard.
Choose a load index that meets or exceeds the manufacturer specification for your vehicle, especially if you carry tools, payload or tow. Many tyres in this size are available with higher load ratings, but you should not downgrade below the original rating. If your vehicle is used heavily, consider options marked XL or light truck where appropriate, and keep the same or higher load index than your current fitment.
All-terrain options in this size suit mixed driving where you regularly face gravel, muddy tracks or farm lanes, and they tend to have stronger tread blocks and sidewalls. Road tyres usually offer lower noise and better efficiency on tarmac, making them ideal for mainly motorway and town driving. Pick the tread type based on where the vehicle spends most of its time, then compare wet grip and braking ratings to narrow it down.
Any change in tyre size can alter rolling circumference, speedometer accuracy, ground clearance and the chance of rubbing on steering lock. Stick to sizes listed by the vehicle manufacturer or a trusted tyre fitment guide for your exact model and trim. If you are considering an alternative, check wheel width compatibility and confirm the new size keeps overall diameter close to the original.
The correct pressure depends on your vehicle, axle load and whether you are towing or carrying heavy cargo. Use the manufacturer placard (usually on the driver door frame or fuel flap) for the recommended cold pressures, and adjust only within the guidance provided for different loads. Avoid inflating to the maximum printed on the tyre sidewall unless your vehicle manufacturer specifically instructs it.
