Best Tire Size Calculator Plus Apps

246+ iOS apps curated and reviewed

3.5 avg rating

14 free apps

Updated October 2026

Tire Size Calculator + is the household name in tire size calculator plus, but it's far from the only option. We track 246+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Tire Size Calculator Plus Apps (October 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	Tire Size Calculator +	Free	1.0★ (1)	Yes	No	Oct 2026
2	Tire Size Calculator Plus	$2.99	3.6★ (5)	No	No	Oct 2026
3	Tire Sizes	Free	4.5★ (82)	No	Yes	Oct 2026
4	Tire Size Calculator ISO/LT	Free	4.2★ (102)	No	Yes	Oct 2026
5	Tire Size Calculator	$3.99	—	No	No	Oct 2026
6	Tire Size Calculator	$2.99	—	Yes	No	Aug 2026
7	Tire Size Calculator - Upsize	Free	1.1★ (7)	No	No	Nov 2026
8	Car Tire Size Calc	$0.99	—	No	No	Oct 2026

Top Picks for Tire Size Calculator Plus

Tire Size Calculator + by heekyung moon

Compare, Offset & Speedo Error

Editor's Choice

🔧 Utilities

1.0(1 ratings)

FreeAds

Calculate tire size differences, speedometer errors, and wheel offset changes. Compare tire dimensions, find alternative sizes, and visualize wheel fitment. Save your car's tire sizes for quick access.

Tire Size Calculator Plus by Heng Jia Liang

Compare Tire Sizes with Visual

Strong Contender

🔧 Utilities

3.6(5 ratings)

$2.99

Easily compare the specifications of two tires before purchasing. Calculate differences in diameter, width, sidewall, circumference, and revolutions per mile. Includes visual illustrations and speedometer adjustments for different tire sizes.

Tire Sizes by Zaven Hovhannisyan

Calculations and Suggestions

Worth Considering

🔧 Utilities

4.5(82 ratings)

FreeIn-App Purchases

Find essential tire dimensions and receive suggestions for new tire sizes. Compare wheels visually and by specifications like offset and width. Discover factory tire sizes for your car and compare motorcycle tires across different measurement systems.

More Tire Size Calculator Plus apps to explore

Tire Size Calculator ISO/LT

Tire size calculator

Free

Calculate tire and wheel fitment for your vehicle. This app helps you understand tire stretch, rolling radius, and speedometer error. It also allows for multiple wheel comparisons and saving results as images.

Wheel Fitment CalculationTyre Stretch AnalysisRolling Radius Measurement

🔧 Utilities

(102)

free with in-app purchases

Tire Size Calculator

Cars, LT, Moto & Weight

$3.99

Easily compare tire and wheel specifications for upgrades. Calculate equivalent sprung weight differences and get safe, performance-enhancing recommendations. Supports both Imperial and Metric units.

Compare tire and wheel specsGet upgrade recommendationsCalculate sprung weight difference

Best to swap tire size.

$2.99

📊 Productivity

(0)

Tire Size Calculator - Upsize

Tyre Size Comparison

Free

Calculate and compare tire sizes for your vehicle. This tool helps you understand the impact of different tire dimensions on performance and ensures your speedometer remains accurate after upgrades. It's designed for automotive enthusiasts and anyone looking to optimize their vehicle's setup.

Accurate tire size calculationsAspect ratio adjustmentsSpeedometer correction

Rim Offset & Speedo Compare

$0.99

🔧 Utilities

(0)

Tire Size Calculator.

Tire & Wheel Size Calc

Free

Easily compare tire and wheel sizes to understand diameter changes and speedometer differences. This tool helps drivers and mechanics make informed decisions about vehicle setups and tire fitment.

Tire size comparisonWheel diameter calculationSpeedometer difference estimation

🔧 Utilities

(2)

free with in-app purchases

Wheel Size

Wheel and tire size database

Free

Access a comprehensive database for vehicle wheel and tire fitment information. Find OE and aftermarket options, including plus-minus sizing, for over 110 car makes and 3800+ models. Data is updated daily and covers vehicles manufactured since 2000 with nearly 100% accuracy.

Wheel and tire fitment data lookupOE and aftermarket optionsPlus-minus sizing information

🔧 Utilities

(60)

ad-supported

Tire Size & Fitment Upsize

Speedo error, gearing, chart

This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.

Large buttonsClear displayFast calculations

🔧 Utilities

(410K)

ad-supported

Tire size correspondence

Metric Tire Conversion

This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.

Basic arithmetic operationsPercentage calculationsMultiple color schemes

🔧 Utilities

(34K)

free with in-app purchases

Plus-Sizing TIRE PRESSURE CALC

For Plus Sizing Wheel.

Free

Calculate optimal tire pressure for your vehicle based on selectable tire standards and pressure units. Proper inflation enhances performance, prevents flats, saves fuel, and supports sustainability goals.

Selectable tire standards (XL, RFD, ETRTO, TRA, JATMA)Switchable pressure units (kPa, bar, kg/cm2, psi)Optimize tire performance

Tire and wheel calculator

$1.99

This app helps you compare and visualize different tire and wheel configurations for your vehicle. It calculates key dimensions, checks for fitment issues, and provides technical references. Supports both Imperial and Metric units.

Compare tire and wheel dimensionsVisualize configurations with cutaway viewsFitment calculator for vehicle compatibility

🔧 Utilities

(8)

paid

Wheels Speed Calculator

calculate error of speedometer

Free

Calculate the error in your speedometer when using tires of different dimensions than recommended by the manufacturer. It helps you find tire sizes that minimize speedometer inaccuracies for your vehicle.

Calculate speedometer errorCheck speed differences with different tire sizesSelect tire sizes from R4/80/25 to R26/460/100

🔧 Utilities

(1)

ad-supported

Gear Speed and Tire Size

by Scott Galaba

$0.99

Calculate and compare transmission gear ratios with various tire and wheel sizes. Visualize results with interactive graphs and save them as PDFs. Includes calculators for gear speed, and both inch and millimeter tire sizes.

Gear speed and tire size comparisonInteractive gear speed graphPrintable/savable PDF results

Bike Tire Pressure Calc

Free

This app helps cyclists determine the optimal tire pressure for their bike based on various factors like terrain, rider weight, and temperature. It provides specific recommendations for different bike types to enhance performance, comfort, and confidence.

Ideal tire pressure calculationTerrain and riding condition analysisCustomizable for rider weight and temperature

🔧 Utilities

(45)

free

FAQ about Tire Size Calculator Plus

What are the best tire size calculator plus apps for iPhone?

Tire Size Calculator + tops our tire size calculator plus apps ranking as of October 2026, with a 1.0-star average from 1 App Store ratings, and it's free to download.

Are there free tire size calculator plus apps for iPhone?

Yes — 14 of the top tire size calculator plus apps we rank are free to download, including Tire Size Calculator + and Tire Sizes.

Does Tire Size Calculator + have ads or in-app purchases?

Tire Size Calculator + shows ads and has no in-app purchases, according to its App Store listing as of October 2026.

How many tire size calculator plus apps are on the App Store?

We track 246+ tire size calculator plus apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.