Best Metric Conversions Apps

249+ iOS apps curated and reviewed

3.8 avg rating
19 free apps
Updated November 2026

Metric Conversion tool is the household name in metric conversions, but it's far from the only option. We track 249+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Metric Conversions Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Metric Conversion toolMetric Conversion toolFree4.8★ (15K)YesNoNov 2026
2Unit Converter - Best Unit AppUnit Converter - Best Unit AppFree4.8★ (200K)YesYesNov 2026
3Unit Ease - Metric vs ImperialUnit Ease - Metric vs ImperialFree5.0★ (67)NoYesOct 2026
4Metric To US ConverterMetric To US ConverterFree4.0★ (87)YesNoSep 2026
5Convert Any Unit LiteConvert Any Unit LiteFree4.7★ (48K)YesNoNov 2026
6CONVERT UNITSCONVERT UNITSFree4.7★ (1.4K)YesYesNov 2026
7Unit Converter - Convert allUnit Converter - Convert allFree4.6★ (14K)YesYesNov 2026
8Metric ConvertersMetric Converters$0.99—NoNoNov 2026

Top Picks for Metric Conversions

Metric Conversion tool#1

Metric Conversion tool by Wight Hat

Unit and currency converter
Editor's Choice
🔍 Reference
4.8😐(15K ratings)
FreeAds
Metric Conversion tool screenshot 1
Metric Conversion tool screenshot 2
Metric Conversion tool screenshot 3
Metric Conversion tool screenshot 4
Metric Conversion tool screenshot 5

This app provides a comprehensive unit and currency converter with a user-friendly interface. It offers offline functionality, supports over 30,000 unit conversions, and includes more than 160 currencies with live exchange rates. Users can save favorite conversions and get precise results.

What We Love

  • 💡 Useful conversion tool
  • 👍 Easy to use and navigate
  • 🚀 Quick and efficient
  • 👍 Comprehensive coverage of conversions

Room to Improve

  • 🔊 Intrusive and loud ads
  • 🔒 Questionable privacy practices
  • 🐛 Inaccurate conversions
  • 👎 Disruptive to workflow
Unit Converter - Best Unit App#2

Unit Converter - Best Unit App by Alan Mrvica

Convert All Units and Currency
Strong Contender
✈️ Travel
4.8😊(200K ratings)
FreeAdsIn-App Purchases
#66in Travel
Unit Converter - Best Unit App screenshot 1
Unit Converter - Best Unit App screenshot 2
Unit Converter - Best Unit App screenshot 3
Unit Converter - Best Unit App screenshot 4
Unit Converter - Best Unit App screenshot 5
Unit Converter - Best Unit App screenshot 6

Easily convert between a vast array of units and currencies with live exchange rates. This app offers a simple, intuitive interface for over 20 categories, making it ideal for everyday tasks and travel.

What We Love

  • 🚀 Easy to use
  • 👍 Comprehensive conversions
  • 💡 Useful for travel and cooking
  • 🚀 Quick and efficient
  • 👍 Intuitive interface

Room to Improve

  • 🐛 Limited character input
  • 🐛 Difficulty with negative numbers
  • 💡 Lack of ability to quickly switch between conversions
  • 💰 Pro version not worth the cost
Unit Ease - Metric vs Imperial#3

Unit Ease - Metric vs Imperial by Cheng Cheng

Accurate unit conversion.
Worth Considering
🔧 Utilities
5.0(67 ratings)
FreeIn-App Purchases
Unit Ease - Metric vs Imperial screenshot 1
Unit Ease - Metric vs Imperial screenshot 2
Unit Ease - Metric vs Imperial screenshot 3
Unit Ease - Metric vs Imperial screenshot 4
Unit Ease - Metric vs Imperial screenshot 5
Unit Ease - Metric vs Imperial screenshot 6

This app offers accurate unit conversions for a wide range of categories including weight, length, temperature, and volume. It also provides specialized size charts for clothing and rings, along with everyday and scientific conversion tools. Users can customize display formats and enjoy a visually appealing interface.

More Metric Conversions apps to explore

FAQ about Metric Conversions

What are the best metric conversions apps for iPhone?
Metric Conversion tool tops our metric conversions apps ranking as of November 2026, with a 4.8-star average from 15K App Store ratings, and it's free to download.
Yes — 19 of the top metric conversions apps we rank are free to download, including Metric Conversion tool and Unit Converter - Best Unit App.
Metric Conversion tool shows ads and has no in-app purchases, according to its App Store listing as of November 2026.
We track 249+ metric conversions apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.

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