Best Budget Calculator Gas Apps

240+ iOS apps curated and reviewed

3.9 avg rating
19 free apps
Updated August 2026

If you already know Simple Fuel Calculator (USA), this is the deeper bench. 240+ budget calculator gas apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of August 2026.

Compare top Budget Calculator Gas Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Simple Fuel Calculator (USA)Simple Fuel Calculator (USA)Free5.0★ (6)NoNoJul 2026
2Calculator: No Ads / Ad-FreeCalculator: No Ads / Ad-FreeFree4.7★ (4.5K)NoYesAug 2026
3Cat® Methane Number CalculatorCat® Methane Number CalculatorFree4.0★ (1)NoNoAug 2026
4Gas Cost CalculatorGas Cost CalculatorFreeNoNoAug 2026
5Calculator: EasyCalcCalculator: EasyCalcFreeYesYesJul 2026
6Fuel (Gas) CalculatorFuel (Gas) CalculatorFreeNoNoMay 2026
7Calculator - CalcCalculator - CalcFreeYesNoJul 2026
8GB Gas Heat Input CalculatorGB Gas Heat Input CalculatorFreeNoNoAug 2026

Top Picks for Budget Calculator Gas

Calculator: No Ads / Ad-Free#2

Calculator: No Ads / Ad-Free by Gary Cox

Basic, Scientific & Finance
Strong Contender
🔧 Utilities
4.7😊(4.5K ratings)
FreeIn-App Purchases
Calculator: No Ads / Ad-Free screenshot 1
Calculator: No Ads / Ad-Free screenshot 2
Calculator: No Ads / Ad-Free screenshot 3
Calculator: No Ads / Ad-Free screenshot 4
Calculator: No Ads / Ad-Free screenshot 5
Calculator: No Ads / Ad-Free screenshot 6

This app offers a private and accessible calculation experience with no advertisements. It includes scientific, financial, and basic calculation functions, along with features like voice feedback and visual charts for loans and investments.

What We Love

  • 🚀 Simple and intuitive
  • 🔒 No ads or data collection
  • 👍 Customizable color themes
  • 👍 Helpful additional features (loan, mortgage, tip calculators)

Room to Improve

  • 🐛 Incorrect order of operations in calculations
  • 🐛 Missing basic calculator functions (square root, memory)
  • 🔍 Limited functionality compared to full-featured calculators

More Budget Calculator Gas apps to explore

4
Gas Cost Calculator
Gas Cost Calculator
Gas Cost Calculator
Calculate your gas costs
Free

Easily determine your travel expenses by inputting distance, car's fuel efficiency, and current gas prices. It calculates total costs per person, making shared trips more transparent.

Calculate total gas costsInput distance and car consumptionFactor in current gas price
🔧 Utilities
(0)
free
5
Calculator: EasyCalc
Calculator: EasyCalc
Calculator: EasyCalc
Smart Calculator & Converter
Free
🔧 Utilities
(0)
6
Fuel (Gas) Calculator
Fuel (Gas) Calculator
Fuel (Gas) Calculator
Part of CalCon Calculator
Free
🔧 Utilities
(0)
7
Calculator - Calc
Calculator - Calc
Calculator - Calc
Calculator
Free
📚 Education
(0)
8
GB Gas Heat Input Calculator
GB Gas Heat Input Calculator
GB Gas Heat Input Calculator
by GB-GAS.CO.UK
Free

This tool simplifies calculating natural gas heat input and gas rates for installations. It allows users to time their meter, input readings, and get instant results, eliminating the need for manual charts or complex calculations.

Heat input calculationGas rate calculationMetric meter timing
💼 Business
(0)
free
9
GasCap — Gas Cost Calculator
GasCap — Gas Cost Calculator
GasCap — Gas Cost Calculator
Know before you go
Free

Calculate fuel costs for your trips and find live gas prices. Offers offline access to essential features for free. Upgrade to Pro for advanced tracking, savings analysis, and AI-powered advice.

Fuel cost calculationLive gas pricesOffline access
🔧 Utilities
(1)
free with in-app purchases
10
Gas Volume Calc
Gas Volume Calc
Gas Volume Calc
Orifice Gas Flow Calculator
Free

This utility estimates natural gas flow rate using standard orifice meter calculations. It's designed for field use by operators, technicians, and engineers, combining meter geometry, flowing conditions, and gas composition for quick, reliable estimates.

Estimates natural gas flow rate (MCFD)Uses standard orifice meter calculationsCombines meter geometry, flowing conditions, and gas composition
📊 Productivity
(3)
free
11
FuelAdvisor for iPhone
FuelAdvisor for iPhone
FuelAdvisor for iPhone
by Charles Tatum II
Free

Easily estimate your fuel expenses before you visit the pump. Input basic details to get a clear understanding of your likely spending on gasoline.

Fuel cost estimationExpense trackingSimple data entry
🔧 Utilities
(3)
free
12
Fuel Cost Calculator (US and Metric)
Fuel Cost Calculator (US and Metric)
Fuel Cost Calculator (US and Metric)
by David Dalcu
$0.99

Calculate your fuel expenses and track your vehicle's efficiency. This tool helps you determine cost per mile, yearly fuel expenditure, and miles per gallon. It's ideal for budgeting trips and managing fuel reimbursements.

Calculates Miles per GallonCalculates cost per MileEstimates yearly fuel cost
💰 Finance
(1)
paid
13
FuelCost: Route Gas Calculator
FuelCost: Route Gas Calculator
FuelCost: Route Gas Calculator
Calculate Trip Fuel Costs
Free

Estimate and track fuel expenses for any journey by selecting start and end points on a map. Input vehicle fuel efficiency and gas prices to instantly see your total trip cost. Save favorite routes, share trip details, and plan your travel budget effectively.

Interactive map route planningFuel efficiency and gas price inputTotal trip cost estimation
🗺️ Navigation
(1)
ad-supported
14
Road Trip Gas Calculator App
Road Trip Gas Calculator App
Road Trip Gas Calculator App
Quickly calculate trip costs.
Free
💰 Finance
(0)
15
GasSplit - Cost Calculator
GasSplit - Cost Calculator
GasSplit - Cost Calculator
Calculate Gas Cost for Trips.
Free
🌟 Lifestyle
(0)
16
GasWari - Gas Cost Calculator
GasWari - Gas Cost Calculator
GasWari - Gas Cost Calculator
Quick gas cost calculator app
Free
🔧 Utilities
(0)
17
Gas Pump Wizard
Gas Pump Wizard
Gas Pump Wizard
The Smart Way to Buy Gas
Free
💰 Finance
(0)
18
Calculator - 15 Calculators
Calculator - 15 Calculators
Calculator - 15 Calculators
Calculator for iPhone
Free

This app offers a comprehensive suite of 15 calculators for everyday and scientific needs. Easily perform basic arithmetic, complex scientific functions, and specialized calculations like sales tax, age, and loan payments. It also includes a robust unit converter for various measurements.

15 specialized calculatorsScientific calculation functionsUnit converter for length, area, volume, and more
🔧 Utilities
(18)
free with in-app purchases
19
Roadtrip Gas Price Calculator
Roadtrip Gas Price Calculator
Roadtrip Gas Price Calculator
Split the cost of fuel!
Free

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.

Calculate fuel costsSplit expenses with friendsCompare routes for savings
✈️ Travel
(298)
free with in-app purchases
20
Calculator: Simple Calculator
Calculator: Simple Calculator
Calculator: Simple Calculator
by Bhaskar Rao
Free
🔧 Utilities
(0)

FAQ about Budget Calculator Gas

What are the best budget calculator gas apps for iPhone?
Simple Fuel Calculator (USA) tops our budget calculator gas apps ranking as of August 2026, with a 5.0-star average from 6 App Store ratings, and it's free to download.
Yes — 19 of the top budget calculator gas apps we rank are free to download, including Simple Fuel Calculator (USA) and Calculator: No Ads / Ad-Free.
Simple Fuel Calculator (USA) has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 240+ budget calculator gas apps on the iOS App Store as of August 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.