This application calculates ratios and totals from input values and also performs back calculations. It can be used to solve problems like determining heating time based on microwave oven output wattage.

224+ iOS apps curated and reviewed
Finding the right ratio calculator total tool app can be overwhelming with so many options. We've analyzed 224+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

This application calculates ratios and totals from input values and also performs back calculations. It can be used to solve problems like determining heating time based on microwave oven output wattage.


This proportion calculator helps you find the missing value in an equation, determining the relationship between two sets of quantities, whether they increase or decrease proportionally. Simply input your values and get the calculated result to solve problems involving direct and inverse proportions.






A top-rated scientific calculator app on iOS devices offering advanced math functions with a user-friendly interface for users of all levels. Features include step-by-step solutions, math photo solving, and handwriting recognition. Enhance your calculations with this versatile tool.


Experience the award-winning calculator app for iPad and iPhone, offering a free basic and scientific calculator with an elegant design, simple usability, and beautiful interface. Calculate with ease and precision today!


A versatile scientific calculator app designed for math enthusiasts, offering features like natural display for textbook-like equations, symbolic and numeric modes, complex number calculations, calculus functions, statistical analysis, and unit conversion. With a premium upgrade option for additional advanced features and customization. Access the power of NCalc FX now!


Enhance your CNC machining operations with an all-in-one tool for machinists and engineers. Access a range of calculations and features to streamline workflow and boost productivity in turning, milling, drilling, and more.


A handy math assistant for solving basic and scientific calculations intuitively and quickly. Become a math master with this free app!


A handy measurement tool for quick and accurate calculations, perfect for DIY enthusiasts and professionals alike. Easily perform math on measurements, save time, and avoid costly mistakes on materials. Check out the app now for a simpler and more efficient measuring experience!


A versatile calculator app for iPhone and iPad offering over 40 calculators and unit converters for finance, health, and more. Simplify your calculations with just one app today!


iFraction is a powerful fraction calculator app that helps with everyday fraction math problems, featuring step-by-step equation explanations, decimal and fraction calculations, large number support, and previous calculation storage. Ideal for students, woodworkers, constructors, and anyone needing fast and accurate fraction calculations on their Apple devices. Turn your iPhone, iPod, or iPad into a versatile calculator with iFraction.


An essential tool for professionals working with dimensions, this app optimizes speed and accuracy while reducing errors. Try it for free before purchase on your App Store account. Ideal for enhancing productivity on the go.


PCalc Lite is the ideal calculator app for scientists, engineers, students, and programmers offering RPN mode, multi-line display, unit conversions, constants, and more. Try it for free on your iPad and upgrade for additional features or themes. Also available on Apple Watch for on-the-go calculations.


Explore a powerful scientific calculator with functions beyond basic arithmetic - trigonometry, statistics, and combinatorics. Create and evaluate custom functions, work offline, view multiple expressions at once, and enjoy a seamless user experience - all for free.


Calculate the optimal positioning for cards in trading card game decks with this convenient tool. Ensure perfect centering and alignment for professional-looking decks. Try it now for precise card arrangement!


Calculate tips quickly and conveniently with this popular tip calculator app, featuring large text, intuitive controls, real-time updates, and support for international currencies. Easily adjust tip percentages and round totals with just a tap. Download now for a seamless gratuity calculation experience!


Calculate measurements with ease using this construction calculator designed for quick and accurate results. Perfect for all your project needs – download now and simplify your work!


Discover the best hand calculator for all your basic math needs - addition, subtraction, multiplication, division, and more, with customizable features like recording and recalling past calculations and touch sound. Perfect for school children and anyone seeking a simple and efficient calculator solution!


This tool calculates essential information about a ramp, including slope, length, and height, based on just two inputs, and offers various calculation scenarios. It also features a built-in tool to measure the slope of an existing ramp or surface using your device, providing accurate results with proper use.


Enhance your machining operations with a specialized calculator built for manufacturing professionals and CNC operators. Optimize efficiency, speed, and accuracy in your processes with this essential tool.


A powerful calculator app for scientists, engineers, students, and programmers with features like RPN mode, multi-line display, unit conversions, constants, paper tape, undo/redo, and support for various calculation formats. Also available on Apple Watch for convenient wrist calculations. Try it now!