This free utility app calculates ratios and totals from given inputs. It can also perform back calculations to determine ratios from a total. It even helps calculate heating time based on microwave wattage.

224+ iOS apps curated and reviewed
Finding the right ratio calculator total tool apps 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.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 4.9★ (7) | Yes | No | Jul 2026 | |
| 2 | Free | 3.3★ (12) | No | Yes | Jul 2026 | |
| 3 | $5.99 | 4.7★ (6.2K) | No | Yes | Jul 2026 | |
| 4 | Free | 4.6★ (9.6K) | Yes | Yes | Jul 2026 | |
| 5 | Free | 4.7★ (12K) | Yes | Yes | Jul 2026 | |
| 6 | Free | 4.9★ (24) | No | Yes | Jul 2026 | |
| 7 | Free | 4.6★ (357K) | Yes | Yes | Jul 2026 | |
| 8 | $3.99 | 4.8★ (2.1K) | No | No | Jul 2026 |

This free utility app calculates ratios and totals from given inputs. It can also perform back calculations to determine ratios from a total. It even helps calculate heating time based on microwave wattage.


This utility app specializes in calculating proportions, solving for an unknown value in direct and inverse ratio equations. It handles scenarios like price increases and speed decreases, offering a simple yet effective tool for proportion-based problems.






This advanced calculator app offers a powerful math core and algebra engine for basic to complex calculations. It includes features like step-by-step solutions, handwriting recognition, and 2D graphing, making it suitable for students, engineers, and programmers.


This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.


This app is a powerful scientific calculator with graphing capabilities, a formula library, and a unit converter. It offers natural display input, advanced math functions for algebra, calculus, and statistics, and supports various number bases and formats.


This app provides machinists and engineers with a comprehensive suite of tools for CNC operations. It offers a wide range of calculations for turning, milling, drilling, and more, designed to enhance precision and boost productivity.


This app offers a clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.


Perform complex calculations directly on a visual tape measure. Easily add, subtract, multiply, and divide measurements, mixing decimals and fractions. Get results in inches, feet, and centimeters, in both decimal and fractional formats, saving time and preventing errors.


This app offers a comprehensive suite of over 40 calculators and unit converters for various needs, including finance, health, construction, and everyday math. It features standard, scientific, and specialized calculators for tasks like loan amortization, currency conversion, and material estimation.


This application simplifies fraction calculations for students, professionals, and anyone needing to work with fractions. It offers step-by-step explanations for equations and can handle both decimal and fraction inputs, converting between the two. The app supports large numbers and saves previous calculations for easy review.


This app is a powerful construction calculator designed for professionals working with dimensions. It offers a wide range of solutions for dimensional math, right angle calculations, area and volume, and special functions, helping to improve speed and accuracy in layouts, bids, and estimates.


This free scientific calculator offers essential features like RPN mode, unit conversions, and multiple undo/redo. It provides a taste of a more powerful version, with optional in-app purchases for expanded functionality.


This app offers a powerful scientific calculator with a wide range of functions for trigonometry, statistics, and combinatorics. Users can define and evaluate their own functions, assign values to variables, and view multiple expressions simultaneously. It works offline and is completely free to use.


This app helps collectors and traders measure card centering ratios for grading. It uses AI to detect centering or allows manual adjustments for precise measurements, displaying potential grades from major companies.


Easily calculate gratuity for any bill with this free tip calculator. Features a large display, intuitive slider, and quick buttons for common percentages. Supports international currencies and offers options to round totals.


A powerful construction calculator designed for tradespeople. It offers a wide range of tools for estimating, layout, framing, and jobsite calculations, helping to save time and improve accuracy. Supports both imperial and metric units.


A straightforward calculator app designed for simplicity, offering basic arithmetic operations and percentage calculations. It allows users to record and recall past results, customize colors, and enable touch sounds for a personalized experience.


Calculate all aspects of a ramp's dimensions, including slope, run, length, and rise. It can also measure the slope of existing surfaces using your device's sensors. Supports various input combinations for flexible calculations.


This app provides a comprehensive suite of calculators and tools for CNC machinists, engineers, and hobbyists. It offers specialized calculations for turning, milling, drilling, threading, and geometric tolerances, along with material data and G-code generation.


A powerful calculator designed for professionals and students, offering advanced features like RPN mode, multi-line display, and extensive unit conversions. It supports various number systems and includes an Apple Watch app for on-the-go calculations.