Best Mpg Fuel Converter Apps

194+ iOS apps curated and reviewed

4.7 avg rating
16 free apps
Updated May 2026

The best mpg fuel converter apps on iPhone average 4.7★ across 194+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.

Compare top Mpg Fuel Converter Apps (May 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1MPG Fuel ConverterMPG Fuel ConverterFreeNoNoMay 2026
2Fuel Calculator: MPG ConverterFuel Calculator: MPG Converter$0.995.0★ (7)NoNoJul 2026
3Fuelly: MPG & Service TrackerFuelly: MPG & Service TrackerFree4.7★ (28K)NoYesJul 2026
4Conversion Calculator PlusConversion Calculator PlusFree4.7★ (15K)YesYesJul 2026
5Road Trip MPG LiteRoad Trip MPG LiteFree4.4★ (44)NoNoJun 2026
6AtoB: Find and Save on FuelAtoB: Find and Save on FuelFree4.7★ (2.3K)NoNoJul 2026
7Alternative Fueling StationsAlternative Fueling StationsFree4.7★ (6.4K)NoNoJul 2026
8Simple Fuel Calculator (USA)Simple Fuel Calculator (USA)Free5.0★ (6)NoNoJul 2026

Top Picks for Mpg Fuel Converter

Fuel Calculator: MPG Converter#2

Fuel Calculator: MPG Converter by David Verbenyi

Converts MPG to L/100KM
Strong Contender
🔧 Utilities
5.0(7 ratings)
$0.99
Fuel Calculator: MPG Converter screenshot 1
Fuel Calculator: MPG Converter screenshot 2
Fuel Calculator: MPG Converter screenshot 3
Fuel Calculator: MPG Converter screenshot 4
Fuel Calculator: MPG Converter screenshot 5
Fuel Calculator: MPG Converter screenshot 6

Easily convert between MPG and L/100 KM with this simple fuel calculator. Track your fuel efficiency and journey costs by entering fuel amounts, distance driven, and price per unit. Save your calculations for future reference.

Fuelly: MPG & Service Tracker#3

Fuelly: MPG & Service Tracker by Fuelly, LLC

MPG, Mileage & Fuel Economy
Worth Considering
💰 Finance
4.7😐(28K ratings)
FreeIn-App Purchases
Fuelly: MPG & Service Tracker screenshot 1
Fuelly: MPG & Service Tracker screenshot 2
Fuelly: MPG & Service Tracker screenshot 3
Fuelly: MPG & Service Tracker screenshot 4
Fuelly: MPG & Service Tracker screenshot 5

Track your vehicle's fuel economy and maintenance history. Set reminders for essential services like oil changes and tire rotations to help you save money. Seamlessly sync your data with the web platform for comprehensive vehicle management.

What We Love

  • 👍 Easy to use
  • 🚀 Excellent for tracking fuel and maintenance
  • 📊 Helpful graphs and charts
  • 🔒 Secure data storage

Room to Improve

  • 🐛 Buggy after recent updates
  • 🔒 Subscription required for full functionality
  • 🤖 Lacks support for non-US units and vehicles

More Mpg Fuel Converter apps to explore

4
Conversion Calculator Plus
Conversion Calculator Plus
Conversion Calculator Plus
Unit Converter
Free

This app is a versatile unit and currency converter with a user-friendly interface. It supports a wide range of conversion categories, including real-world and crypto currencies, with automatic exchange rate updates. Customize your experience with design options, dark mode, and adjustable home screen layouts.

Unit and currency conversionSupports 160+ currencies (real & crypto)Automatic currency exchange rate updates
📊 Productivity
(15K)
free with in-app purchases
5
Road Trip MPG Lite
Road Trip MPG Lite
Road Trip MPG Lite
MPG and Mileage Tracking
Free

Easily track your car's mileage, fuel economy, and maintenance expenses. This app offers fast data entry, comprehensive statistics, and international support for various units. It allows unlimited data saving and seamless upgrades to a full version.

Fast fuel, price, and odometer inputSingle-touch fuel entryFuel price/mileage graphing
💰 Finance
(44)
free
6
AtoB: Find and Save on Fuel
AtoB: Find and Save on Fuel
AtoB: Find and Save on Fuel
Make an impact on fuel costs
Free

This app helps users find significant discounts on diesel and unleaded fuel at various stations. It offers route planning with discount optimization and seamless navigation integration. Additionally, it provides robust fleet management tools for controlling spending and managing finances.

Fuel discounts on diesel and unleadedFuel discount station locatorRoute planning with discount optimization
🗺️ Navigation
(2.3K)
free
7
Alternative Fueling Stations
Alternative Fueling Stations
Alternative Fueling Stations
by National Renewable Energy Laboratory
Free

Discover nearby fueling stations for alternative energy sources like electricity, natural gas, and biofuels. View station details, including payment options, access, and specific fuel types, all sourced from a comprehensive U.S. Department of Energy database.

Locate alternative fueling stationsUse current or custom locationView stations on map or list
🗺️ Navigation
(6.4K)
free
8
Simple Fuel Calculator (USA)
Simple Fuel Calculator (USA)
Simple Fuel Calculator (USA)
Calculates fuel usage and cost
Free

This application helps users calculate their fuel consumption and associated costs. It utilizes standard units commonly used in the USA, such as miles, dollars, and U.S. gallons.

Fuel consumption calculationCost calculationUses US standard units (miles, $, gallons)
✈️ Travel
(6)
free
9
Mila's Fuel & EV Converter
Mila's Fuel & EV Converter
Mila's Fuel & EV Converter
Gas Mileage & MPG Calculator
Free

Easily compare fuel economy across different global standards for both combustion and electric vehicles. This tool converts between 13 units, allowing you to understand MPG, km/L, L/100km, mi/kWh, and more.

Converts 13 fuel economy unitsSupports combustion and electric vehiclesFavorites for frequently used units
🔧 Utilities
(5)
free with in-app purchases
10
Mila's Unit Converter PRO
Mila's Unit Converter PRO
Mila's Unit Converter PRO
Ultimate conversion calculator
$9.99
$29.99 | 67% OFF

Effortlessly convert between hundreds of units across 26 essential categories with this precision calculator. Designed for speed and simplicity, it offers accurate results in seconds for students, professionals, and travelers alike. Enjoy offline functionality and a customizable experience.

Hundreds of units across 26 categoriesMetric, imperial, and specialized unitsSmart conversions for temperature, fuel, and more
🔧 Utilities
(979)
paid
11
FCC-Fuel Consumption Converter
FCC-Fuel Consumption Converter
FCC-Fuel Consumption Converter
Most convenient fuel converter
Free
🔧 Utilities
(0)
12
Fuelio: prix carburant & coûts
Fuelio: prix carburant & coûts
Fuelio: prix carburant & coûts
Essence, conso & kilométrage
Free

Track your vehicle's fuel consumption, mileage, and expenses. Monitor fill-ups, gas prices, and maintenance costs with detailed statistics and charts. Supports multiple vehicles and fuel types.

Mileage loggingFuel consumption trackingVehicle expense tracking
💰 Finance
(138)
free with in-app purchases
13
GlobeConvert Currency & Units
GlobeConvert Currency & Units
GlobeConvert Currency & Units
Convert Currency and Units
Free

Easily convert over 160 currencies and 350 physical units with real-time updates and offline capabilities. Create a favorites list for quick access to frequently used conversions and enjoy geo-based currency options. An ad-free version is available for purchase.

Real-time conversion160+ currencies supported350+ physical units supported
🔧 Utilities
(79K)
free with in-app purchases
14
OBD Fusion
OBD Fusion
OBD Fusion
OBD2 scan tool & diagnostics
$9.99

This app connects to your car's OBD2 port via a compatible adapter to read vehicle data. Monitor fuel economy, clear check engine lights, and create custom dashboards for real-time diagnostics and performance tracking.

Read and clear OBD2 trouble codesCustomizable real-time dashboardsEstimate fuel economy
✈️ Travel
(123)
free with in-app purchases
15
Units Plus Converter
Units Plus Converter
Units Plus Converter
Convert Any Unit & Currency
$19.99

Easily convert between various units and currencies with a simple, intuitive interface. Features live currency updates for 155 world currencies, refreshed every 15 minutes. Optimized for a wide range of Apple devices, including iPads with Split View support.

Unit conversion across 12 categoriesLive currency updates for 155 currenciesOptimized for iPhone and iPad
🔧 Utilities
(8.3K)
free
16
Converter+ (Units, Currencies)
Converter+ (Units, Currencies)
Converter+ (Units, Currencies)
Unit and Currency Converter
Free

This app offers a comprehensive unit and currency converter with a vast array of categories and calculators for everyday needs. It allows users to customize templates, download shared ones, and provides automatic exchange rate updates for 167 world currencies.

Extensive unit and currency conversionMultiple calculators (mortgage, loan, tip)Customizable and downloadable templates
📊 Productivity
(2.3K)
free with in-app purchases
17
Unit Converter - Pro Units App
Unit Converter - Pro Units App
Unit Converter - Pro Units App
Convert Any Unit
Free

This app offers a powerful and user-friendly unit converter with 16 categories, including currency, length, and temperature. It allows for custom unit lists and provides live exchange rate updates for 148 currencies. Unlock all features with a one-time in-app purchase.

16 conversion categoriesCustom unit listsLive currency exchange rates
🔍 Reference
(16K)
free with in-app purchases
18
Fancy Units Converter
Fancy Units Converter
Fancy Units Converter
Currency and Unit Converter
Free

This app offers a fast and user-friendly way to convert units and currencies. Customize your conversion lists and get instant results as you type, with support for over 350 units and 160 currencies. It also includes a built-in calculator and offline currency data.

Real-time conversion350+ physical units160+ currencies
🔧 Utilities
(1.6K)
free with in-app purchases
19
Convertible: Unit Converter
Convertible: Unit Converter
Convertible: Unit Converter
Currency and Unit Converter
Free

This app offers a comprehensive unit and currency conversion tool with a visually appealing interface and extensive unit options. It supports standard and non-standard units, compound conversions, and fraction input, making it versatile for various needs.

Extensive standard and non-standard unit conversionsCurrency conversion with 161 currenciesCompound unit conversion
🔧 Utilities
(97)
paid
20
Fuel Tracker Gas & Mileage Log
Fuel Tracker Gas & Mileage Log
Fuel Tracker Gas & Mileage Log
Monitor car fuel expenses
Free

Easily track your vehicle's fuel consumption and mileage. Log gas purchases, calculate fuel economy, and view detailed statistics and plots of your driving data. Supports multiple units and data synchronization.

Track fuel log (quantity, price, odometer)Calculate gas mileage and costView statistics and plots
🔧 Utilities
(608)
freemium

FAQ about Mpg Fuel Converter

Are there free mpg fuel converter apps for iPhone?
Yes — 16 of the top mpg fuel converter apps we rank are free to download, including MPG Fuel Converter and Fuelly: MPG & Service Tracker.
MPG Fuel Converter has no ads and has no in-app purchases, according to its App Store listing as of May 2026.
We track 194+ mpg fuel converter apps on the iOS App Store as of May 2026, ranked by rating, recency, and analysis of real user reviews.