Changing tires or rims on your vehicle? This is the app for you!

TireLab is an advanced, yet VERY easy to use, tire and wheel calculator that allows the manipulation of the multiple dimensions of several tire and wheel combinations. It allows professionals, enthusiasts, and weekend mechanics the ability to examine, compare, and visualize multiple tire and wheel configurations in real time.


1) Calculates, compares, and displays all key tire and wheel data points

- Compatible rim sizes
- Diameter
- Difference
- Distance per revolution (circumference)
- Odometer error (difference in odometer)
- Radius
- Revolutions per mile
- Revolutions per kilometer
- Section (sidewall) height
- Section width (tire width)
- Size
- Speedometer error (difference in speed)

- Backspace
- Difference
- Offset
- Lip inset
- Size

2) Tire/wheel configuration fitment calculator
Provides the user the ability to identify vehicle fitment related issues that may potentially result from different tire and wheel configurations.

- Axel/ride height
- Brake component clearance
- Fender (outside) clearance
- Suspension (inside) clearance
- Wheelwell clearance

3) Intuitive and easy to navigate interface
TireLab provides for the ability to manipulate the key dimensions of both tires and wheels. If you desire to only utilize the tire modeling functionality you need only to adjust the tire measurements. All of the controls will automatically adjust to safe and compatible configuration thresholds.

4) Detailed scaled visual representations
View, and compare, detailed representations of tire and wheel configurations. A unique "cutaway view" of the wheel provides the user with the ability to visualize and compare key tire and wheel measurements for multiple configurations. In addition, a unique "tire view" permits the user the ability to visualize and compare scale representations of different tire configurations.

5) Tire compatibility display
Provides the user a list of compatible tire sizes and accurately indicates the differences in both tire width and tire diameter.

6) Tire and wheel technical reference
Provides the user the ability to view codes, definitions, and technical specifications.

-Tire construction
-Load Index chart
-Load Ranges
-Speed Ratings
-Tire types
-Temperature Grades
-Traction Grades
-Treadwear Grades

7) Tire and wheel technical glossary
Includes an extensive dictionary of tire and wheel technical terminology.

8) Imperial and Metric
Full Imperial (standard) and Metric support. All information is displayed in both Imperial and Metric units.

What’s New

Version 2.0.0

1) Full GUI refresh
2) Compatible with all iOS platforms

Ratings and Reviews

4.2 out of 5
6 Ratings
6 Ratings
Cosmo1956 ,


This is an amazing app! It's just what I've been looking for. However, I noticed what appears to be a small discrepancy In the way the graphs portray sidewall height or sidewall. In the reference area sidewall is described as the section between the tire bead and the tread. In the graph area, sidewall is shown to be the section between the tire tread and the lip of the wheel. This would give the illusion that the visible sidewall height is actually larger than it really is. Typically the flange or bead seat of the wheel which holds the bead of the tire, protrudes from the barrel approximately 1 inch or about 25 mm. The graphs show all of this of course but the measured distance for sidewall height is shown incorrectly. Other than this I really like this app

BoShmais69 ,

the Best Tire/Wheel Calculator

Please ,,
- make it rememberers the last Tire/Wheel Dimensions

- still no update for iOS 10.3.3 !

Developer Response ,

App has been updated to support all iOS platforms and iOS 11+. Thanks for your support!

Nineball76 ,

Save your money

It's not worth $4. Yes it works, but there are better for less.


Michael Weber
1.2 MB

Requires iOS 11.2 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© Michael Weber


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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