iPhone Screenshots


Finally an app for car guys and gals who like to wrench!

Welcome to Garage Buddy, your one stop shop for car themed calculators, converters, tables and more.

-Want to go from 15 inch wheels to 17's? Garage Buddy can tell you what size tire to buy so your speedometer remains accurate.

-Adding Air Conditioning to your hotrod and need to know what size belt to buy? Garage Buddy has the answer!

-Going to put some big 33's on your 4x4 and need to re-gear? Garage Buddy can tell you how low to go!

-Want to know what size carb to put on your new V8? Punch in a few numbers and Garage Buddy will tell you what CFM you'll need!

Garage Buddy can handle the simple stuff too, like converting metric to standard. There are conversions for Speed, Distance, Volume, Torque, Weight, and Pressure.

There's also a helpful notes section, where you can record important information for each of your cars, such as spark plug gap, part numbers, oil weights, etc. This is super handy to have with you when you go to the parts store.

Garage Buddy includes the following:


Notes Section

Units Converter

Tire Size Calculator

Carb Flow Calculator

HP Loss at Altitude

Belt Size Calculator

Gearing Calculators

Tap Drill Size Chart

Drill Bit Size Chart

Metal Gauge Chart

Wire Gauge Chart

Do you think there is something we should add? Send us an email with your ideas and we'll do our best to include them in the next version.

What's New

Version 1.0.4

Improved functionality of feedback page.

Customer Reviews

4 out of 5

73 Ratings

73 Ratings

Great Resource!!!


Love this app! I use it all of time. I particularly like the ability to compare two tire sizes. Gear ratio calculator is well done also. I used the drill and tap chart just today. Get this app!!!


GT Motorsports

As a Racecar fabricator I use many different size tires. This app helps me when changing tire sizes. Very helpful app-highly recomended!



Need to update this app to work with the latest phone updates. Awesome app otherwise.


Turtle Rock Studios
1.2 MB
Requires iOS 3.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Spanish
Age Rating
Rated 4+
© 2010 Turtle Rock Studios


  • Family Sharing

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

More By This Developer

You May Also Like