Tyre Upsize Calculator

Tyre Upsize / Plus Sizing Calculator helps you to find the optimal tyre size, to which you can upgrade when you wish to install larger wheels on your car.

This tool will be helpful if you plan to:

There is a limit to which you can do this because, you cannot increase the total diameter (Rim + tyre cross section) of your tyre greater than 3% ( Read: How is it calculated? )

Search Tyre to Upsize

Select Vehicle Make & Model
Select Vehicle Version
Select Size
Your Stock Tyre Size:

Types of tyre upsizes

Tyre Image
Wheel Diameter
Plus 0
  • Width increases and Profile decreases but Diameter of your rim remains the same.
Tyre Image2
Wheel Diameter
Plus 1
  • Width increases and Profile decreases further, Diameter of your rim increases by 1".
Tyre Image 3
Wheel Diameter
Plus 2
  • Width increases and Profile decreases further, Diameter of your rim increases by 2".

Things You Should Know

How Tyre upsizing affects your vehicle?
Things which are improved:
  • Adds a sleek and sturdier look to your car.
  • Steering response and handling is improved, Allows eased driving and better stability.
  • Provides a higher grip and traction, improves braking distance.
  • Helps the vehicle in high speed cornering.
Things to watch out for:
  • Fuel efficiency is decreased.
  • Speedometer and odometer no longer reads correctly.
  • Increased tread wear.
  • Tyre interchangeability is not always possible.
Method Used for Tyre Upsize Calculation

There is not much scope to increase the Total Diameter of the tyre that comes originally fitted in your car.

    Tyre Dimension Measurement
    Total Diameter = Wheel/Rim Diameter + Sidewall

This total diameter can only be increased by 3%, for a safe upsize of tyre. So, we calculate the total diameter for each tyre size and then compare this with the total diameter of the size that is originally fitted in your car.
If the difference lies within this range of 3 %, then only we would recommend that tyre.

Ask our Tyre expert

Santosh Godbolevia Google

I am having aveo 1.4 2007 model and want to replace all four tyres. Suggest me .

Hi Santosh,

If you want an economical option then go for Kumho Ecsta SPT KU tyre. It offers good traction and handling and has a good tread life. Another economical option would be Falken Sincera SN835.

In case you want something better then go for Bridgestone Turanza ER300. It is a very good tyre and offers great traction and performance. The ride quality is very comfortable and smooth. You can also go for Michelin energy XM2. This tyre performs as good as Turanza but offers better ride comfort.

If you want performance oriented tyres then choose out of Bridgestone MY02 Sporty Style tyre or Yokohama C Drive. They both offer great handling and performance. But since they are performance oriented tyres, their tread life would be relatively less than normal passenger tyres.



suresh wankhedevia Google

Can we put tyre of size 155/80 R13 for santro xing ?

Hello Suresh,

The stock size for Santro Xing is 155/70 R13. Going for 155/80 R13 tyre size would not be recommended as it is an invalid upsize. 
For any upsize to be valid, the diameter difference between the new and old size should be less than or equal to 3%. But in case of 155/70 and 155/80, this difference is 5.67%. Hence, I would seriously recommend you to use tyres in stock size of 155/70 R13 for your Santro Xing.



Tyre Expert
Ramit Anand

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