# Metric Conversion tool — Unit and currency converter

> Offline unit and currency converter with extensive conversion options and live rates. (iPhone/iPad app by Wight Hat.)

- Source: https://appshunter.io/ios/app/metric-conversion-tool/id1439430070 (this page in markdown: same URL + `.md`)
- Developer: [Wight Hat](https://appshunter.io/developer/1425885740)
- Category: Reference, Education
- Price: Free
- Rating: 4.80/5 from 14,630 App Store ratings · 192 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 22 MB
- Languages: American English, Afrikaans, Albanian, Armenian, Azerbaijani, Belarusian, Bangla, Bosnian, Bulgarian, Catalan and 44 more
- Released: 2018-10-26
- Data updated: 2026-08-27
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/metric-conversion-tool/id1439430070/reviews.md

## What is Metric Conversion tool?

Unit converter App from the most popular metric conversions website in the world, metric-conversions.org. Over a billion visitors have used our website, try our app and see why we're so popular!

FEATURES:
Easy to use clear interface
Works offline
All popular unit conversions (over 30,000 of them)
Over 160 currencies (including Bitcoin and other cryptocurrencies) with live exchange rates
Store your favorite conversions for quick access
Answers in fractions where needed.
Obtain conversion results with up to 5 decimal places
Imperial units split into other imperial units – so you can get a weight in stones and pounds, pounds and ounces, etc. Lengths break down into feet and inches, etc.

WEIGHT:
Kilograms, Pounds, Stones, Ounces, Grams, Carats, Grains, Hundredweights, Micrograms.Milligrams, Ounces, Pennyweights, Tons, Troy pounds, Troy ounces

TEMPERATURE:
Celsius, Fahrenheit, Kelvin, Rankine, Newton, Réaumur, Rømer, Delisle.

LENGTH:
Miles, Yards, Feet, Inches, Kilometers, Meters, Centimeters, Chains, Decimeters, Furlongs, Leagues, Lightyears, Microinches, Microns, Millimeters, Parsecs, Nautical Leagues, Nautical Miles.

AREA:
Square Miles, Acres, Square Yards, Square Feet, Square Inches, Square Kilometers, Hectares, Square Meters, Square Centimeters, Square Millimeters, Square Microns, Square Microinches.

VOLUME:
Cups, Tablespoons, Teaspoons, Gallons, Pints, Gills, Ounces , Cubic Meters, Liters, Centiliters, Milliliters, Cubic Yards, Barrels, Quarts, Gills.

SPEED:
Miles per hour, Kilometers per hour, Meters per second, Knots, Mach, Light speed and more.

TIME:
Seconds, Minutes, Hours, Days.

ANGLE:
Degrees, Radians, Minutes (Angular), Seconds (Angular), Centrad, Gradians, Milliradians, Sign

PRESSURE:
Atmospheres, Bar, Pascals, Pound Force per Square Inch, Inches of Mercury, Inches of Water, Kilogram Force per Square Meter, Millibar, Millimeters of Mercury, Millimeters of Water, Newtons per Meter Squared, Pounds per Square Foot, Torrs

CURRENCY:
All state sponsored world currencies as well as major crypto-currencies.

If you need anything added, email us at appcontact@metric-conversions.org and we'll do our best to put them in for you!

## Key features

- Offline functionality
- Over 30,000 unit conversions
- 160+ currencies with live rates
- Save favorite conversions
- Answers in fractions
- Up to 5 decimal places

## What do users think of Metric Conversion tool?

Overall sentiment: neutral

**Pros**

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

**Cons**

- 🔊 Intrusive and loud ads
- 🔒 Questionable privacy practices
- 🐛 Inaccurate conversions
- 👎 Disruptive to workflow

**Commonly reported bugs**

- Temperature conversion displaying incorrect values
- Ads triggering false memory full warnings

**Most requested features**

- Paid version to remove ads
- Option to display results in preferred format
- Speed conversion (mph, km/h, etc.)

## Recent user reviews (10 of 192)

All indexed reviews: https://appshunter.io/ios/app/metric-conversion-tool/id1439430070/reviews.md

### 1/5 — Stopped working

*2026-08-06, version 2.2.27*

I used that converter for a long time. Recently it stopped working. Not sure if recent iOS update caused that or if there is another reason.

### 2/5 — Why!?

*2026-06-24, version 2.2.27*

Great app but… I have paid for no ads many years ago in app. I even tried to restore purchases when that option was available. Nothing happened. Now I have adds and you want me to pay again for another no add version?…

### 1/5 — ☹️Needs attendance

*2026-05-12, version 2.2.27*

OK, the currency converter, which is the only reason to use this app now, hasn’t updated in two weeks, glad I’m not one of the folks actually paying for this 😵‍💫
——
Okay, they’ve lowered the price to $5, but everything else said is still true ☹️

-Guys, seriously, you must be kidding.
I just checked out your new paid version.
You update the app, a Perfectly Great app, for the first time in 6 years. All the feedback you've gotten says it's a bad update, and now you want to release the same, now inferior app, as an Ad Free Paid version !
In addition to that, to make matters worse you want folks to pay --> $25.00 for it !!!
 
“As of January 2025, the Apple App Store had roughly 1.8 million apps priced less than a dollar.
A further 16,000 iOS apps cost 1 & 2 dollars.
Additionally, over 3,000 apps in the Apple Store were priced between 9 & 10 dollars”
 
and, sorry to say this but, yours, even when it was better, was Not a $10 app.
 
Guys, I love you, but you need to get real ❤ 

—former—
I’m sorry to say that, like most of the recent reviews, I find the new version a let down. Other than less frequent updates to currency the past version was perfect, it did not need updating! The newer version is much less easy to use and the layouts are poor. I used to use the app everyday, and would click the Ads as a way of saying Thank You. Now I visit less, and the Ads get in the way, before they did not. There’s an expression, “if it’s not broken don’t fix it“. I wish you would go back to the old version and just update the currency more frequently. Down from five stars to three ☹️

—-old review—
An excellent app I’ve used it for years but lately the currency conversion doesn’t update as often as it should. The last update was for February 10 I believe. Before that, I think it had been quite a while.

### 2/5 — Read This

*2026-03-01, version 2.2.27*

Up until recently it was a great useful app and I get the ads but NOW , go thru ALL the Cookies/Data that is " accepted " as DEFAULT...YIKES!!!!

### 1/5 — Cookies and “legitimate interest”

*2026-01-21, version 2.2.27*

Honestly, what “legitimate interest” do half a million “vendors” have in me converting inches to cm? It’s taken half an hour to dig down and untick each individually, and I shouldn’t have to pay for the “privilege” of having “less” spyware. I hate cookies! They make you fat! 😡🤬😡

### 1/5 — Now horrible

*2025-05-26, version 2.2.9*

The fiddled and fiddled with a formerly functional app, and now it is nearly useless.

### 1/5 — Full of ads

*2025-05-22, version 2.2.9*

Used to be an awesome app, my go to for all conversions but since the update, full of ads, constantly “loading” and basically unusable. So disappointed. Deleted after many years :(

### 1/5 — Far too many cookies!

*2025-05-10, version 2.2.9*

Deleted because there are far too many cookies stating they are using legitimate reasons to spy on you! Terrible & disingenuous app

### 1/5 — Needs attendance

*2025-04-20, version 2.2.9*

Okay, they’ve lowered the price to $5, but everything else said is still true ☹️

-Guys, seriously, you must be kidding.
I just checked out your new paid version.
You update the app, a Perfectly Great app, for the first time in 6 years. All the feedback you've gotten says it's a bad update, and now you want to release the same, now inferior app, as an Ad Free Paid version !
In addition to that, to make matters worse you want folks to pay --> $25.00 for it !!!
 
“As of January 2025, the Apple App Store had roughly 1.8 million apps priced less than a dollar.
A further 16,000 iOS apps cost 1 & 2 dollars.
Additionally, over 3,000 apps in the Apple Store were priced between 9 & 10 dollars”
 
and, sorry to say this but, yours, even when it was better, was Not a $10 app.
 
Guys, I love you, but you need to get real ❤ 

—former—
I’m sorry to say that, like most of the recent reviews, I find the new version a let down. Other than less frequent updates to currency the past version was perfect, it did not need updating! The newer version is much less easy to use and the layouts are poor. I used to use the app everyday, and would click the Ads as a way of saying Thank You. Now I visit less, and the Ads get in the way, before they did not. There’s an expression, “if it’s not broken don’t fix it“. I wish you would go back to the old version and just update the currency more frequently. Down from five stars to three ☹️

—-old review—
An excellent app I’ve used it for years but lately the currency conversion doesn’t update as often as it should. The last update was for February 10 I believe. Before that, I think it had been quite a while.

### 2/5 — Needs attendance

*2025-04-14, version 2.2.9*

Guys, seriously, you must be kidding.
I just checked out your new paid version.
You update the app, a Perfectly Great app, for the first time in 6 years. All the feedback you've gotten says it's a bad update, and now you want to release the same, now inferior app, as an Ad Free Paid version !
In addition to that, to make matters worse you want folks to pay --> $25.00 for it !!!
 
“As of January 2025, the Apple App Store had roughly 1.8 million apps priced less than a dollar.
A further 16 thousand iOS apps cost one to two U.S. dollars.
Additionally, over three thousand apps in the Apple Store were priced between nine and 10 U.S. dollars”
 
and, sorry to say this but, yours, even when it was better, was Not a $10 app.
 
Guys, I love you, but you need to get real ❤ 
—former—
I’m sorry to say that, like most of the recent reviews, I find the new version a let down. Other than less frequent updates to currency the past version was perfect, it did not need updating! The newer version is much less easy to use and the layouts are poor. I used to use the app everyday, and would click the Ads as a way of saying Thank You. Now I visit less, and the Ads get in the way, before they did not. There’s an expression, “if it’s not broken don’t fix it“. I wish you would go back to the old version and just update the currency more frequently. Down from five stars to three ☹️
—-old review—
An excellent app I’ve used it for years but lately the currency conversion doesn’t update as often as it should. The last update was for February 10 I believe. Before that, I think it had been quite a while.

## Frequently asked questions about Metric Conversion tool

### What does the Metric Conversion tool app do?

The app is a comprehensive unit and currency converter. It allows users to convert between a vast number of units, including weight, temperature, length, area, volume, speed, time, angle, pressure, and currency. It aims to provide accurate conversion results with a user-friendly interface.

### What are the key features of this converter app?

Key features include an easy-to-use interface, offline functionality, support for over 30,000 unit conversions, and over 160 currencies with live exchange rates. It also allows users to store favorite conversions for quick access and provides answers in fractions where needed, with results up to 5 decimal places.

### Is this app free to use?

Yes, this app is completely free to use. There are no in-app purchases or advertisements mentioned, indicating a free monetization model.

### Can I use this app without an internet connection?

Yes, the app works offline. This means you can perform unit and currency conversions even when you do not have an active internet connection, making it convenient for use on the go.

### What types of conversions does the app support?

The app supports a wide array of conversions, including weight (kilograms, pounds, stones), temperature (Celsius, Fahrenheit, Kelvin), length (miles, feet, meters), area, volume, speed, time, angle, pressure, and currency (including cryptocurrencies). It also breaks down imperial units into smaller imperial units for more specific conversions.

## Version history (last 5 releases)

### 2.2.27 — 2025-09-16

minor bug fixes

### 2.2.21 — 2025-07-30

Fixed missing translations
Fixed currency rate loading issue
Fixed occasionally slipping off type selection
Changed last updated text in currency conversion
Fixed missing energy and power units
Miscellaneous minor bug fixes

### 2.2.9 — 2025-04-13

Minor bug fix

### 2.2.7 — 2025-04-10

Contains information on our new Premium app
Minor bug fixes

### 2.1.5 — 2025-03-27

Regular currency updates
Fraction option for inches
Minor bug fixes

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All apps by Wight Hat: https://appshunter.io/developer/1425885740

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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 2026-08-27.*