Easily calculate the volume and liquid levels for a wide variety of tank shapes. Supports multiple units and offers offline functionality for convenient use in industries or for personal projects.






225+ iOS apps curated and reviewed
The best tank calculator apps on iPhone average 4.3★ across 225+ titles — we've ranked them by what real users actually keep on their phones. Updated June 2026.


















Easily calculate the volume and liquid levels for a wide variety of tank shapes. Supports multiple units and offers offline functionality for convenient use in industries or for personal projects.


This app precisely calculates the volume of numerous tank shapes, including cylindrical, rectangular, and conical. It supports custom densities and offers output in various units like liters, cubic meters, and gallons. Designed for professionals and enthusiasts, it simplifies complex calculations with a user-friendly interface.


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.


Easily calculate the volume of various shapes in cubic yards for landscaping materials, construction, or waste disposal. Get an estimated cost for your materials based on price per unit.


Calculate the liquid contents and total capacity of tanks by entering their dimensions and the current liquid level. Access a tank capacity chart via email input.






Calculate agrochemical ratios instantly and accurately for agricultural use. Offers dual modes for label rates or percentage solutions, supporting various units and volumes. Sync recipes offline via iCloud.


This free calculator app offers a fast, ad-free experience with a visual input and calculation history. Customize your experience with various keyboard sounds and colors, and access advanced scientific functions when needed.


This comprehensive calculator app offers a wide range of tools for everyday calculations, from basic arithmetic and scientific functions to unit and currency conversions. It includes specialized calculators for loans, health, fuel costs, GPA, and more, all within a clean and user-friendly interface.


This farm app helps users quickly calculate the correct amounts of chemicals needed for spraying crops. It allows for custom chemical entries and provides detailed mixing instructions for full and partial loads based on acreage and tank size.


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.


This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.


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.




This app offers a customizable and fast calculator experience with a wide variety of themes. It includes scientific and standard modes, real-time results, and calculation history. Personalize your math with over 60 cute and colorful themes, including animated options.


Easily calculate the ideal water, substrate, and fish for your aquarium. Maintain optimal pH levels with a bicarbonate calculator and never miss a task with customizable reminders for feeding and cleaning.


This app offers a versatile calculator with three distinct modes: Basic, Scientific, and Programmer. It provides a history view, sharing capabilities, and supports various input and output formats. The app is designed for iPhone, iPad, and iPod Touch.