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Unit Converter HD.

Unit Converter HD.

30 categories, 700+ units

645 ratings
146 reviews
With Ads
🔧 Utilities
✈️ Travel
Free
In-App PurchasesWith Ads

Details

Released
November 29, 2011
Updated
September 23, 2026

Features

Developer

良峰 侯
✨Promote your app ✨
Unit Converter HD. screenshot #1 for iPhone
Unit Converter HD. screenshot #2 for iPhone
Unit Converter HD. screenshot #3 for iPhone
iphone
ipad
🧾$1.99
In-App Purchase↘︎
📌Ready
Reviews summary↘︎
⭐146
Reviews↘︎
📝30+ tags
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🔄6+ apps
Alternatives↘︎
❓5 answered
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About

Easily convert over 700 units across 30 categories with this powerful tool. It offers a user-friendly interface, dark mode support, and a backspace key for quick corrections. Save time on all your measurement conversion needs.

✓700+ Units of Measure
✓30 Conversion Categories
✓Easy-to-Use Interface
✓Dark Mode Support
✓Backspace Key
Show original description

What users say about Unit Converter HD.

Reviews of Unit Converter HD. are mostly positive: the Utilities app is rated 4.7/5 from 645 App Store ratings. What users like most: easy to use, handy and convenient. Top complaints: occasional crashes or freezing issues, could be more intuitive for some users. Summarized from real user reviews.

Positive things

  • 👍Easy to use
  • 🚀Handy and convenient
  • 💡Comprehensive set of conversions
  • 🚀Very useful app
  • 👍Intuitive design
  • 👍Reliable and dependable

Negative things

  • 🐛Occasional crashes or freezing issues
  • 💡Could be more intuitive for some users
  • 🔒Requires horizontal orientation
See all reviews

What's New in Unit Converter HD.

8.5

September 23, 2026

+ Bug fixes and performance improvements.

1

Subscriptions & In-App Purchases

$1.99

Remove Ads Pack

No Ads, all pages will fill the whole screen.

User reviews

Most RecentHighest RatedLowest Rated

Excellent App

I use it frequently. It proves quite helpful especially going from English to metric. One problem, however, it fills the screen on my phone and will not let me out. I have had to eliminate it from my phone so that I accidentally decide to use it. I trust the at developers will fix that problem.
DDickraub

Home User

Need US weights (tons, lbs., oz.)
PPegasus5280

Review

Works great ,easy to use, very handy app.
PSParrot Stocker

So Handy

I’m so thankful for this app. I love being able to quickly get conversions for any any measurement.
JJimmyJamz44

Super Handy!

I am always finding a use for this app.
Dd’Ave
See 141 more reviews

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User experience

🐞

Reported Bugs

2 issues

Freezing or crashing on some devices

Bug

Display issues with certain units

Bug
✨

Requested Features

3 requests

Add support for US weights (tons, lbs., oz.)

Feature

Implement portrait mode support

Feature

Provide more customization options

Feature

FAQ

What does Unit Converter HD do?

Unit Converter HD is a powerful application designed to help users easily convert between more than 700 different units of measure across 30 distinct categories. It aims to be a universal assistant for all unit conversion requirements, saving users time and effort.

What are the key features of Unit Converter HD?

The app boasts over 700 units of measure spread across 30 categories, making it highly comprehensive. It features an extremely easy-to-use interface, a backspace key for quick corrections, and supports dark mode for a comfortable viewing experience.

Is Unit Converter HD free to use?

Yes, the application is available for free. However, it does include advertisements and offers in-app purchases, suggesting that some advanced features or an ad-free experience might be available for purchase.

What kind of conversions can I perform with this app?

You can perform a wide array of conversions, including but not limited to length, weight, volume, temperature, time, speed, and many more, all categorized for easy access. The app covers over 700 units across 30 different categories.

Who would benefit from using Unit Converter HD?

This app is ideal for students, engineers, scientists, travelers, or anyone who frequently encounters different units of measurement and needs a reliable and quick way to convert them. Its extensive unit library and user-friendly design make it a versatile tool.