# Ratio Calculator Total Tool — Back Calculation from Total > Free ratio calculator for input values, totals, and microwave heating times. (iPhone/iPad app by SHIGETO TAKAGI.) - Source: https://appshunter.io/ios/app/ratio-calculator-total-tool/id720675689 (this page in markdown: same URL + `.md`) - Developer: [SHIGETO TAKAGI](https://appshunter.io/developer/519611619) - Category: Utilities, Productivity - Price: Free - Rating: 4.50/5 from 8 App Store ratings · 10 written reviews indexed - Age rating: 4+ - Requires: iOS 12.0 · 11 MB - Languages: American English, Japanese - Released: 2013-10-12 - Data updated: 2026-08-16 - Monetization: ad-supported - User reviews in markdown: https://appshunter.io/ios/app/ratio-calculator-total-tool/id720675689/reviews.md ## What is Ratio Calculator Total Tool? A simple free ratio calculator application that calculates the ratio and the total of input values from the specified three ratios, and back calculates the three ratios from the total. Calculate the heating time from the output wattage of the microwave oven. ## Key features - Calculate ratios from input values - Calculate totals from input values - Back calculate ratios from a total - Calculate microwave heating time - Free to use ## Recent user reviews (10 of 10) All indexed reviews: https://appshunter.io/ios/app/ratio-calculator-total-tool/id720675689/reviews.md ### 5/5 — 課金がない *2025-01-11* 恒久的な広告削除のためのオプションを導入よろしくお願いします。 製品の価格を比べる際によく使ってます。 ### 1/5 — Poor *2022-05-20, version 20210923* Immediately confronted with sideways on view of everything. Then, whilst trying to make sense of why there were so many boxes, some already containing numbers, presumably by way of example, and with a baffling combination of colons and equals signs between them, I was just about to experiment to find out when rudely interrupted by some kind of request to grant permission for further distraction and some irrelevant mention of Google which could be explored to discover how I'd be further interrupted and how my information was going to be used if I granted such permission. Err, no thanks: I can't be bothered with all the fuss. I prefer apps which just do the job. Afterthought: I should add that I never actually got around to experimenting with some numbers! ### 4/5 — 課金しても良いので広告消して欲しい *2021-09-29* 良いアプリなのに広告が邪魔 WiFiが使えない場所だと広告の為にLte 接続許可のメッセージにも迷惑する できれば課金よりも広告無しの優良版を出して欲しい。 ### 5/5 — 很好用的工具 *2021-04-30* 要是能多加几行就更好了 ### 1/5 — Useless *2020-02-27, version 150815* Totally useless, no instructions, baffling ### 5/5 — 使いやすいのですが… *2019-01-07* 現場で材料計算するのにとても助かります。 合計から逆算できるようにしていただけないでしょうか。合計から各材料の配合比を求めたいのです。 よろしくお願いします。 **Developer response:** Thank you for your review. Please let me know if you have any requests. Please try the latest version. ### 5/5 — 工具挺好用 *2018-11-27* 工具很实用，就是计算比例能在多两位就更好了，希望作者看到了能更新， ### 5/5 — 구매내역 삭제 부탁드립니다 *2016-11-27* 구매내역 삭제 부탁드립니다 **Developer response:** Thank you for your review. We appreciate all feedback we receive. What do you mean by "구매내역 삭제 부탁드립니다"? Please tell me the details. ### 3/5 — 구매목록 삭제해주세요! *2016-03-19* 구매목록 삭제해주세요! **Developer response:** Thank you for your review. We appreciate all feedback we receive. What do you mean by "구매목록 삭제해주세요!"? Please tell me the details. ### 5/5 — すごいアプリです *2014-05-28* 連符とBPMの換算に使ってます どのセルにでも入力できて比例値が瞬間的に出てくるのは驚異的です 要望としてはセル数の自由設定と広告削除機能が欲しいです ## Frequently asked questions about Ratio Calculator Total Tool ### What can Ratio Calculator Total Tool do? Ratio Calculator Total Tool can calculate ratios and totals from input values, and also back-calculate ratios from a total. It can also be used to calculate microwave heating times based on output wattage. ### Is Ratio Calculator Total Tool free to use? Yes, Ratio Calculator Total Tool is a free application. ### Does Ratio Calculator Total Tool have ads? Yes, Ratio Calculator Total Tool contains advertisements. ### What devices is Ratio Calculator Total Tool available on? Ratio Calculator Total Tool is available on iPhone and iPod devices. ### What is the age rating for Ratio Calculator Total Tool? Ratio Calculator Total Tool has an age rating of 4+. ### How often is Ratio Calculator Total Tool updated? The latest version of Ratio Calculator Total Tool was released on January 9, 2025, indicating recent updates. ### What is the user sentiment for Ratio Calculator Total Tool? Based on its rating of 4.9 stars from 7 ratings, users generally have a very positive sentiment towards Ratio Calculator Total Tool. ### Can Ratio Calculator Total Tool calculate heating time for microwaves? Yes, Ratio Calculator Total Tool can calculate the heating time from the output wattage of a microwave oven. ## Version history (last 5 releases) ### 20250107 — 2025-01-09 User interface improved. ### 20210923 — 2021-09-26 ATT supported. ### 20201120 — 2020-11-22 Bug fixed. for iOS14. ### 20200515 — 2020-05-16 dark mode. ### 150815 — 2015-08-18 for iOS8. ## Apps similar to Ratio Calculator Total Tool | App | Rating | Price | Category | | --- | --- | --- | --- | | [sakekas](https://appshunter.io/ios/app/sakekas/id1527877073) | — | Free | Utilities | | [Time-Calculator](https://appshunter.io/ios/app/time-calculator/id956859838) | 4.8 (362) | Free | Utilities | | [ARVolumeCalculation](https://appshunter.io/ios/app/arvolumecalculation/id6443721622) | — | Free | Utilities | | [Number of Days Calculator](https://appshunter.io/ios/app/number-of-days-calculator/id1520146539) | — | Free | Utilities | | [Radar Chart](https://appshunter.io/ios/app/radar-chart/id1500178620) | 4.0 (251) | Free | Utilities | | [UnitConverter byNSDev](https://appshunter.io/ios/app/unitconverter-bynsdev/id1229121492) | — | Free | Utilities | ## More apps by SHIGETO TAKAGI - [Four Formula Calculator](https://appshunter.io/ios/app/four-formula-calculator/id523405542) - [Custom Holiday Calendar](https://appshunter.io/ios/app/custom-holiday-calendar/id524001198) - [Easy Calculators with Cursors](https://appshunter.io/ios/app/easy-calculators-with-cursors/id526231336) - [Dual Mail SNS Editors](https://appshunter.io/ios/app/dual-mail-sns-editors/id527102250) - [Speedometer km/h Odometer](https://appshunter.io/ios/app/speedometer-kmh-odometer/id528218566) - [2026〜2027年（令和8〜9年）友引年間カレンダー](https://appshunter.io/ios/app/2026202789/id529424779) All apps by SHIGETO TAKAGI: https://appshunter.io/developer/519611619 ## Related topics [ratio calculator total tool](https://appshunter.io/ios/topics/ratio-calculator-total-tool) · [ratio calculator tool](https://appshunter.io/ios/topics/ratio-calculator-tool) · [ratio calculator](https://appshunter.io/ios/topics/ratio-calculator) · [rachio pro](https://appshunter.io/ios/topics/rachio-pro) · [ratio](https://appshunter.io/ios/topics/ratio) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-16.*