# Wattage Converter: Microwave — Cook Time Calculator by Watts

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

- Source: https://appshunter.io/ios/app/wattage-converter-microwave/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 26.0 · 4 MB
- Languages: American English, Japanese, Korean, Chinese (Traditional, Taiwan)
- Released: 2021-03-23
- Data updated: 2026-10-08
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/wattage-converter-microwave/id1559535510/reviews.md

## What is Wattage Converter?

Wattage Converter adjusts the heating time printed on food packages and recipes to match the wattage of your own microwave.
For example, if the label says 1100W for 2 minutes and your microwave is 700W, the app shows 3 min 8 sec.
Just pick the numbers. No math needed.

- HOW IT WORKS
1. Pick the wattage and time shown on the package or recipe
2. Pick your microwave's wattage
3. The converted heating time appears instantly

No "Convert" button needed. The result updates as soon as you change a value.

- FEATURES
- Simple wheel pickers, so no typing is needed
- Instant conversion as you change a value
- Large, easy-to-read result you can see at a glance in the kitchen
- Remembers your microwave's wattage, so you don't have to set it every time
- Supports 100W to 1500W (in 50W steps) and up to 20 minutes

- PERFECT FOR
- Reheating ready meals and leftovers
- Cooking frozen food
- Following recipes written for a different wattage
- Using an unfamiliar microwave at work or while traveling

- REMOVE ADS
Remove all ads with a one-time in-app purchase, with no additional charges. You can restore your purchase at any time.

Note: Results are estimates based on keeping "wattage × time" constant. Actual heating may vary depending on the food and your microwave, so please adjust as needed.

## 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 |


## Is Wattage Converter safe?

Not enough ratings yet to assess Wattage Converter.

## Is Wattage Converter legit?

Wattage Converter: Microwave appears to be a legitimate app. The AppsHunter Legitimacy Score for Wattage Converter is 90 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/wattage-converter-microwave/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)

### 2.0.1 — 2026-10-07

The app is now available in Traditional Chinese and Korean.
On iPad, the converter now stays at a comfortable width in the center of the screen instead of stretching across it.

### 2.0 — 2026-09-26

Version 2.0 is a complete redesign.

- Values are now selected with wheel pickers instead of the keyboard
- Results update instantly as you change a value (no more Convert button)
- The result is now shown in large numbers, clearly separated from the inputs
- Your microwave's wattage is saved as soon as you change it
- Redesigned the Remove Ads purchase screen
- Updated for the latest iOS

### 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

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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)

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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 2026-10-08.*