Best Gallons To Liters Apps

197+ iOS apps curated and reviewed

4.6 avg rating
16 free apps
Updated May 2026

Whether you're new to gallons to liters or looking for an upgrade, our curated collection of 197+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Top Picks for Gallons To Liters

Converter (unit conversions)#2

Converter (unit conversions) by Brent Royal-Gordon

Strong Contender
🔧 Utilities
4.7😞(1.9K ratings)
FreeIn-App Purchases
Converter (unit conversions) screenshot 1
Converter (unit conversions) screenshot 2
Converter (unit conversions) screenshot 3
Converter (unit conversions) screenshot 4
Converter (unit conversions) screenshot 5

Easily convert between 76 measurement units across eight common types, including length, weight, temperature, and volume. Features a built-in calculator and optional currency conversion with daily exchange rate updates.

What We Love

  • 👍 Simple and easy to use
  • 👍 Functional and versatile
  • 👍 Clean and uncluttered interface
  • 👍 Helpful for everyday conversions

Room to Improve

  • 🐛 Currency rates not updating
  • 🐛 App crashes or malfunctions
  • 🔒 Subscription required for currency conversion
Conversion Calculator !#3

Conversion Calculator ! by oWorld Software

Currency, Temperature, Length
Worth Considering
✈️ Travel
4.6😐(13K ratings)
FreeAdsIn-App Purchases
Conversion Calculator ! screenshot 1
Conversion Calculator ! screenshot 2
Conversion Calculator ! screenshot 3
Conversion Calculator ! screenshot 4
Conversion Calculator ! screenshot 5
Conversion Calculator ! screenshot 6

Easily convert between various units of measurement, including currencies, temperature, length, and weight. This intuitive tool provides real-time currency exchange rates and a comprehensive list of conversions for everyday use.

What We Love

  • 🚀 Easy to use
  • 🚀 Comprehensive unit conversions
  • 👍 Helpful app
  • 👍 Practical for engineering and mechanics

Room to Improve

  • 🔍 Too many ads
  • 🔍 Ads make the app unusable
  • 🔍 Ads are invasive and disrupt user experience

More Gallons To Liters apps to explore

4
Metric Conversion tool
Metric Conversion tool
Metric Conversion tool
Unit and currency converter
Free

This app provides a comprehensive unit and currency converter with a user-friendly interface. It offers offline functionality, supports over 30,000 unit conversions, and includes more than 160 currencies with live exchange rates. Users can save favorite conversions and get precise results.

Offline functionalityOver 30,000 unit conversions160+ currencies with live rates
🔍 Reference
(15K)
free
5
US Gallons To Liters – Liquid Volume Converter (gal to L)
US Gallons To Liters – Liquid Volume Converter (gal to L)
US Gallons To Liters – Liquid Volume Converter (gal to L)
by Armchair Engineering
$0.99

Easily convert liquid volumes between US gallons and liters. This utility allows you to select your preferred number of decimal places for precise conversions.

US gallons to liters conversionSelect decimal placesQuick and easy to use
🔧 Utilities
(7)
paid
6
Fluid Ounces To Milliliters – Liquid Volume Converter (fl oz to ml)
Fluid Ounces To Milliliters – Liquid Volume Converter (fl oz to ml)
Fluid Ounces To Milliliters – Liquid Volume Converter (fl oz to ml)
by Armchair Engineering
$0.99

Easily convert liquid volumes between fluid ounces and milliliters. This utility app offers a simple interface for quick calculations, allowing you to set your preferred decimal precision.

Fluid ounce to milliliter conversionMilliliter to fluid ounce conversionAdjustable decimal places
🔧 Utilities
(8)
paid
7
Nee-Vo
Nee-Vo
Nee-Vo
by Reseau sans fil Otodata Inc
Free

Instantly view real-time tank levels on your smartphone, eliminating guesswork. Track usage history, receive low-level alerts, and easily request refills from your fuel supplier. Manage multiple tanks and share access with others.

Real-time tank level trackingUsage history consultationConfigurable low-level notifications
🔧 Utilities
(7.3K)
free
8
Cooking Units Converter
Cooking Units Converter
Cooking Units Converter
400+ recipe ingredients
Free

Easily convert over 40 cooking units instantly with a vast library of ingredient densities. This app helps you switch between weight, volume, and temperature measurements, even allowing you to register your own containers for precise conversions without a scale. It's designed for home cooks to simplify international recipes and portion adjustments.

Instant unit conversionsIngredient-based volume to weightCustom container registration
🔧 Utilities
(232)
free with in-app purchases
9
Tank Measure: Volume Calc
Tank Measure: Volume Calc
Tank Measure: Volume Calc
Cylinder Cone Capsule Oval
Free

Calculate the volume of various tank shapes with precision and ease. This user-friendly tool supports a wide range of tank types and units, making it ideal for professionals and DIY enthusiasts alike. It offers advanced algorithms for accuracy and is optimized for efficiency on your device.

Multiple tank shape calculatorsHigh precision volume calculationsUser-friendly interface
🔧 Utilities
(42)
free with in-app purchases
10
Mila's Volume Converter
Mila's Volume Converter
Mila's Volume Converter
Liquid, Dry & Cubic Units Fast
Free

This app provides fast and precise conversions for a wide range of liquid, dry, and cubic volume units. It supports metric, US customary, US dry, UK imperial, and various other measurement systems, including compound conversions. The interface is clean and intuitive, with features like favorites and light/dark modes.

Converts 44 volume unitsSupports 7 measurement categoriesCompound unit conversions
🔧 Utilities
(106)
free with in-app purchases
11
Conversions - Bake & Cook
Conversions - Bake & Cook
Conversions - Bake & Cook
Per Ingredient Cups to Grams
$1.99

This app provides extensive conversion tables for baking and cooking measurements, including volume, weight, and temperature. It supports both US and metric units, with over 300 ingredients listed. Offline access is available.

300+ baking ingredientsUS and Metric unitsVolume, weight, and temperature conversions
🍔 Food & Drink
(57)
paid
12
Unit Converter 2021
Unit Converter 2021
Unit Converter 2021
unit conversion 2020
Free

This app offers a streamlined unit conversion experience, focusing on clarity and ease of use. It avoids common frustrations found in other converters by clearly displaying unit names and abbreviations, and by offering a simple, intuitive interface. Convert everyday units like length, weight, and temperature with confidence.

Clear display of unit names and abbreviationsScrollable lists to limit distractionsResponsive buttons for unit selection
🔧 Utilities
(389)
free with in-app purchases
13
Converter AM
Converter AM
Converter AM
For units & currencies
Free
$3.99 | 100% OFF

This app converts units and currencies with a focus on simple user guidance. It allows for real-time conversion as you type and can also function as a basic calculator. The interface is designed to remain uncomplicated even with future optimizations.

Real-time unit conversionCurrency conversionBasic arithmetic calculator
📊 Productivity
(518)
free with in-app purchases
14
BITZER REFRIGERANT RULER
BITZER REFRIGERANT RULER
BITZER REFRIGERANT RULER
Determine refrigerant data
Free

This tool quickly determines refrigerant data, including properties, safety groups, GWP, and ODP. It offers intuitive temperature-to-pressure conversion and supports both metric and imperial units. Access detailed information and links to online resources for over 100 refrigerants.

Refrigerant data lookupTemperature-to-pressure conversionMetric and imperial unit support
🔍 Reference
(1.1K)
free
15
EyeOnWater
EyeOnWater
EyeOnWater
Making Water Visible.
Free

Monitor your home's water consumption with this app. View detailed usage history, identify leaks, and understand your water usage trends. Connect to your supported water utility account to make your water usage visible.

View recent water usage with comparisonDetailed usage history (day, week, month, year)Discover usage trends
🔧 Utilities
(38K)
free
16
Cookulator - LITE
Cookulator - LITE
Cookulator - LITE
Cooking Unit Converter
Free

Easily convert cooking measurements between different units and country-specific standards. This tool simplifies recipe adjustments by converting a single input to all other listed measurements in one step.

Convert between cups, ounces, tablespoons, teaspoons, millilitersConvert between US, UK, Canada, and Australian measuresOne-step conversion to all units
🔧 Utilities
(24)
free
17
WH2o
WH2o
WH2o
by Smart Energy Systems LLC
Free

Manage your water utility account with ease. Track water usage, view bills, and receive important outage notifications. Discover conservation programs and incentives to save money and water.

View water usage historyReceive outage notificationsAccess past and current bills
💼 Business
(1.3K)
free
18
Flume Water
Flume Water
Flume Water
by Flume, Inc.
Free

Monitor and manage your home's water usage with real-time data and leak detection. This app helps you understand your consumption, set budgets, and receive alerts to prevent costly water damage.

Real-time water usage dataLeak detection and alertsWater consumption budgeting
🌟 Lifestyle
(1.4K)
free with in-app purchases
19
gallon liter converter
gallon liter converter
gallon liter converter
Easy gallon liter converter
Free
🔧 Utilities
(0)
20
TankMix
TankMix
TankMix
by Corteva, Inc.
Free

This application helps users calculate product and water amounts for treating field areas. It supports various units of measure and allows for decimal or fractional input.

Calculate product needed for field areaCalculate water needed for field areaCalculate product for specific tank size
🔧 Utilities
(6)
free

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