Best Fuel Calculator Diesel Apps

217+ iOS apps curated and reviewed

4.6 avg rating
19 free apps
Updated July 2026

Whether you're new to fuel calculator diesel or looking for an upgrade, our curated collection of 217+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Fuel Calculator Diesel Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Simple Fuel Calculator (USA)Simple Fuel Calculator (USA)Free5.0★ (6)NoNoJul 2026
2Roadtrip Gas Price CalculatorRoadtrip Gas Price CalculatorFree4.7★ (298)NoYesSep 2026
3Fuel Calculator: Gas MileageFuel Calculator: Gas MileageFree4.8★ (61)YesYesSep 2026
4ClevCalc - CalculatorClevCalc - CalculatorFree4.7★ (13K)YesYesSep 2026
5MudflapMudflapFree4.7★ (4.5K)NoNoSep 2026
6AtoB: Find and Save on FuelAtoB: Find and Save on FuelFree4.7★ (2.3K)NoNoSep 2026
7FuelbookFuelbookFree4.8★ (1.2K)NoNoSep 2026
8Fuel MPG & Vehicle Expense LogFuel MPG & Vehicle Expense LogFree was $1.994.6★ (354)NoYesSep 2026

Top Picks for Fuel Calculator Diesel

Roadtrip Gas Price Calculator#2

Roadtrip Gas Price Calculator by Ben Robertson

Split the cost of fuel!
Strong Contender
✈️ Travel
4.7😐(298 ratings)
FreeIn-App Purchases
Roadtrip Gas Price Calculator screenshot 1
Roadtrip Gas Price Calculator screenshot 2
Roadtrip Gas Price Calculator screenshot 3
Roadtrip Gas Price Calculator screenshot 4

Effortlessly calculate your road trip expenses, including fuel costs based on your car model and current gas prices. Easily split costs with friends, compare routes for savings, and track your carbon emissions for a more eco-conscious journey.

What We Love

  • 👍 Helpful for planning trips
  • 🚀 Accurate fuel cost estimates
  • 💡 Useful for splitting costs with friends
  • 🚗 Integrates with vehicle details
  • 📊 Provides good overview of trip costs

Room to Improve

  • 💰 Requires subscription for basic features
  • 🐛 Inaccurate or missing fuel price data
  • 🚧 Difficult to add/remove vehicles
  • 🗺️ Limited location/destination coverage
  • 💻 Glitchy and buggy performance
Fuel Calculator: Gas Mileage#3

Fuel Calculator: Gas Mileage by SHPAVDA, TOO

Trip Cost, MPG & Consumption
Worth Considering
🔧 Utilities
4.8(61 ratings)
FreeAdsIn-App Purchases
Fuel Calculator: Gas Mileage screenshot 1
Fuel Calculator: Gas Mileage screenshot 2
Fuel Calculator: Gas Mileage screenshot 3
Fuel Calculator: Gas Mileage screenshot 4
Fuel Calculator: Gas Mileage screenshot 5
Fuel Calculator: Gas Mileage screenshot 6

Estimate travel costs, calculate fuel needed for trips, and evaluate your vehicle's fuel efficiency. Supports various units of measurement for global use and works offline.

More Fuel Calculator Diesel apps to explore

FAQ about Fuel Calculator Diesel

What are the best fuel calculator diesel apps for iPhone?
Simple Fuel Calculator (USA) tops our fuel calculator diesel apps ranking as of July 2026, with a 5.0-star average from 6 App Store ratings, and it's free to download.
Yes — 19 of the top fuel calculator diesel apps we rank are free to download, including Simple Fuel Calculator (USA) and Roadtrip Gas Price Calculator.
Simple Fuel Calculator (USA) has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 217+ fuel calculator diesel apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
Simple Fuel Calculator uses standard units for the USA, including miles for distance, dollars ($) for cost, and U.S. gallons for fuel volume.
Simple Fuel Calculator is designed for Apple devices and is compatible with iPhone, iPad, and iPod.