# Unit Conversion for Safari — Convert units while browsing

> Convert units while browsing (iPhone/iPad app by Seiya.k.)

- Source: https://appshunter.io/ios/app/unit-conversion-for-safari/id6760579841 (this page in markdown: same URL + `.md`)
- Developer: [Seiya.k](https://appshunter.io/developer/383021944)
- Category: Utilities, Business
- Price: $1.99
- Age rating: 4+
- Requires: iOS 15.0 · 4 MB
- Languages: American English
- Released: 2026-03-18
- Data updated: 2026-07-17
- User reviews in markdown: https://appshunter.io/ios/app/unit-conversion-for-safari/id6760579841/reviews.md

## What is Unit Conversion for Safari?

Smart Unit Converter for Safari automatically detects measurements on web pages and converts them instantly while you browse.

When reading international websites, you often see unfamiliar units such as Fahrenheit, miles, inches, pounds, or gallons. This extension detects those values directly on the page and displays the converted result next to them so you can understand measurements immediately.

Unlike traditional unit converter apps, Smart Unit Converter works directly inside Safari. You do not need to copy values or search for conversions. Everything appears automatically while you browse.

The extension supports bidirectional conversion between metric and imperial units. Whether a page uses Fahrenheit or Celsius, miles or kilometers, pounds or kilograms, both units are displayed so you can instantly understand the measurement.

Examples

70°F (≈ 21°C)
25°C (≈ 77°F)
5 miles (≈ 8 km)
10 km (≈ 6.2 mi)
10 lb (≈ 4.5 kg)
1 gallon (≈ 3.78 L)

Key Features

Automatic unit detection on web pages
Bidirectional conversion between metric and imperial units
Supports temperature length weight and volume conversions
Inline display or hover display modes
Click converted values to copy
Enable or disable conversion for specific websites
Category control for temperature length weight and volume
Fast local processing with no external communication

Smart Unit Converter for Safari is designed to be lightweight, fast, and privacy friendly. All processing happens locally in your browser with no data collection.

The extension supports multiple languages and automatically adapts to your system language.

Perfect for reading international articles, shopping online, DIY tutorials, technical documentation, and global news.


## Version history (last 3 releases)

### 1.0.2 — 2026-07-14

Added a speed category (mph and km/h, both directions). Conversions no longer stop on long or endlessly scrolling pages. Settings changes now apply instantly without reloading the page.

### 1.0.1 — 2026-03-30

Added support for 38 languages. Bug fixes and performance improvements.

### 1.0.0 — 2026-03-18

No release notes.

## More apps by Seiya.k

- [Trip Essentials Checker](https://appshunter.io/ios/app/trip-essentials-checker/id6736766761)
- [Multi Browser – Auto Refresh](https://appshunter.io/ios/app/multi-browser-auto-refresh/id6737169432)
- [防犯音声くん - 男性声で安心対策](https://appshunter.io/ios/app/id6739815545)
- [GoReviewMaster](https://appshunter.io/ios/app/goreviewmaster/id6747128239)
- [ClaudeCodeQuiz - Practice](https://appshunter.io/ios/app/claudecodequiz-practice/id6748098522)
- [ViewChanger- PC sites on phone](https://appshunter.io/ios/app/viewchanger-pc-sites-on-phone/id6749019257)

All apps by Seiya.k: https://appshunter.io/developer/383021944

## Related topics

[unit conversion for safari](https://appshunter.io/ios/topics/unit-conversion-for-safari)

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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 2026-07-17.*