# Wattage Converter — find out the good heating time

> Calculates microwave heating times based on different wattage inputs. (iPhone/iPad app by yuta tabane.)

- Source: https://appshunter.io/ios/app/wattage-converter/id1559535510 (this page in markdown: same URL + `.md`)
- Developer: [yuta tabane](https://appshunter.io/developer/1559535512)
- Category: Lifestyle, Food & Drink
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.0 · 4 MB
- Languages: Japanese
- Released: 2021-03-23
- Data updated: 2026-08-24
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/wattage-converter/id1559535510/reviews.md

## What is Wattage Converter?

This app calculates the heating time for microwave ovens! It comes in handy when the only cooking times available are for wattages not available on your home microwave, such as for frozen foods or convenience store bento boxes. You can freely enter the wattage, so it’s possible to calculate times for 550W, 720W, etc.

How to Use:
Just enter the wattage and heating time listed on the product, along with the wattage of your home microwave, and press the "Calculate" button.

We offer both a handy iPhone version for quick reference and an iPad version that’s useful while cooking. Please give it a try!

## Key features

- Calculate heating times for different wattages
- Supports custom wattage input
- Useful for frozen foods and convenience meals
- Available on iPhone and iPad
- Simple and intuitive interface

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Delete ads | $1.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/wattage-converter/id1559535510/reviews.md

### 5/5 — とても良い！

*2025-05-13*

シンプルで使いやすくとても便利です。

## Frequently asked questions about Wattage Converter

### How does Wattage Converter calculate heating times?

Wattage Converter uses a formula to adjust cooking times based on the wattage of the food product and the wattage of your home microwave. You input both values, and it provides the estimated heating duration.

### Can I use Wattage Converter for any food product?

Yes, the app is designed to be versatile and can calculate heating times for various food items, including frozen meals and convenience store bento boxes, where cooking times are often specified for different wattages.

### What devices is Wattage Converter available on?

Wattage Converter is available for both iPhone and iPad devices, offering a convenient experience whether you're quickly checking a time or using it while cooking.

### How often is Wattage Converter updated?

The app was last updated on May 4, 2024, indicating ongoing support and potential for future improvements and bug fixes.

### Does Wattage Converter have ads?

Yes, Wattage Converter contains advertisements, which is common for free utility applications.

### What is the age rating for Wattage Converter?

Wattage Converter has an age rating of 4+, making it suitable for a wide range of users, including children and adults.

### Is there a paid version of Wattage Converter?

While the app is free to download and use, it offers in-app purchases. This suggests that some features or an ad-free experience might be available for purchase.

### What makes Wattage Converter useful for home cooks?

It simplifies the process of adapting recipes or product instructions when your microwave's wattage doesn't match the specified cooking times, preventing under or overcooking.

## Version history (last 5 releases)

### 1.4 — 2024-05-04

We have added support for English localization.

### 1.3.1 — 2024-03-13

ダークモードのときの見た目を少し修正しました。
iPad版も出したのでぜひダウンロードお願いします！

### 1.3 — 2024-02-26

画面のデザインを少し修正しました

### 1.2.1 — 2021-09-12

アイコンを変えました！

### 1.2.0 — 2021-07-11

デザインを変更しました
広告が表示されるようになりました，ごめんなさい

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All apps by yuta tabane: https://appshunter.io/developer/1559535512

## Related topics

[wattage converter](https://appshunter.io/ios/topics/wattage-converter) · [wattage](https://appshunter.io/ios/topics/wattage)

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*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 2026-08-24.*