Metric Conversion tool

Name: Metric Conversion tool
Rating: 4.8 (14638 reviews)
Author: Wight Hat

Unit and currency converter

Free · Designed for iPad. Not verified for macOS.

15K Ratings
Age Rating

4+
Years
Category

Reference
Developer

Wight Hat
Language

EN
+ 53 More
Size

23.5
MB

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!

Ratings & Reviews

4.8

out of 5

15K Ratings

Great app until late
03/17/2025

Tenntom
Been using this app for about 2 years and loved it as I do woodworking hobbyist and need to make conversions. All of a sudden ads start popping up and are very loud and hard to exit from. App deserves a 5 star except with the very annoying ads give it a 3.Can’t wait until new app comes out. Use it just about every day. Hope the purchase price is reasonable and not a subscription as I will not pay for any subscription app.

Developer Response
I’m sorry about those ads- the ads were served by Google and we had little control over them. We have just launched a new version of the app which is available in the App Store as an update. In this version we have addressed this issue and the ads should be of much higher quality, not offensive and definitely no music! Thank you for your patience
Great app until late
03/17/2025

Tenntom

Been using this app for about 2 years and loved it as I do woodworking hobbyist and need to make conversions. All of a sudden ads start popping up and are very loud and hard to exit from. App deserves a 5 star except with the very annoying ads give it a 3.Can’t wait until new app comes out. Use it just about every day. Hope the purchase price is reasonable and not a subscription as I will not pay for any subscription app.
Developer Response 03/20/2025
I’m sorry about those ads- the ads were served by Google and we had little control over them. We have just launched a new version of the app which is available in the App Store as an update. In this version we have addressed this issue and the ads should be of much higher quality, not offensive and definitely no music! Thank you for your patience
Wonderful app
12/17/2023

JWADMDPC
This is an amazing app for converting metric to standard ISO and ISO the metric. I watch a lot of shows from other countries that use the metric system, but in America where I grew up, we’ve always used the standard and ISO systems. I’ve used this app so often I’ve learned most of the conversions for length, weight, currency, and many other conversions. The app also includes formulas for conversion. I love it, and highly recommend it.
Wonderful app
12/17/2023

JWADMDPC

This is an amazing app for converting metric to standard ISO and ISO the metric. I watch a lot of shows from other countries that use the metric system, but in America where I grew up, we’ve always used the standard and ISO systems. I’ve used this app so often I’ve learned most of the conversions for length, weight, currency, and many other conversions. The app also includes formulas for conversion. I love it, and highly recommend it.
Yes!!!!Finally!!!! It just simply does what you need it to do!!!
02/06/2020

xanderbilt
It is ridiculous how much time I spent trying to convert ft/lb to Nm! Should be simple, just look it up! Right! So many unit conversion apps but none of the ones I had would do this simple function. Until I found this one! It was so freaking fast!!
Yes!!!!Finally!!!! It just simply does what you need it to do!!!
02/06/2020

xanderbilt

It is ridiculous how much time I spent trying to convert ft/lb to Nm! Should be simple, just look it up! Right! So many unit conversion apps but none of the ones I had would do this simple function. Until I found this one! It was so freaking fast!!
DON’T UPDATE!!!
03/24/2025

Sarajsh
If you love this app, do NOT update. The new version makes it impossible to see everything I need to see and the part you need to tsp on too. Invert anything isn’t even visible in the screen. Everything is USELESSLY larger. You have to scroll a lot more to get to what you want and a lot seems to even be missing. AND I DIDNT EVEN UKDATE THUS. It did it in its own . Now I have to search for another app because this one, once sleek, well organized and super useful is now useless to me. I can’t even se what I’m writing, so pardon the typos.. I just can’t see what I’m doing. If it ain’t broke, DONT FIX IT. Goodbye, once great app. Thanks for nothing.
DON’T UPDATE!!!
03/24/2025

Sarajsh

If you love this app, do NOT update. The new version makes it impossible to see everything I need to see and the part you need to tsp on too. Invert anything isn’t even visible in the screen. Everything is USELESSLY larger. You have to scroll a lot more to get to what you want and a lot seems to even be missing. AND I DIDNT EVEN UKDATE THUS. It did it in its own . Now I have to search for another app because this one, once sleek, well organized and super useful is now useless to me. I can’t even se what I’m writing, so pardon the typos.. I just can’t see what I’m doing. If it ain’t broke, DONT FIX IT. Goodbye, once great app. Thanks for nothing.

minor bug fixes

Version 2.2.27 09/16/2025

Data Not Collected

The developer does not collect any data from this app.

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Accessibility

Information

Seller: Wight Hat Ltd
Size: 23.5 MB
Category: Reference
Compatibility: Requires iOS 15.1 or later.

iPhone
Requires iOS 15.1 or later.

iPad
Requires iPadOS 15.1 or later.

iPod touch
Requires iOS 15.1 or later.

Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.

Apple Vision
Requires visionOS 1.0 or later.
Languages: English and 53 more

English, Afrikaans, Albanian, Armenian, Azerbaijani, Belarusian, Bengali, Bosnian, Bulgarian, Catalan, Croatian, Czech, Danish, Dutch, Estonian, Finnish, French, Georgian, German, Greek, Gujarati, Hindi, Hungarian, Indonesian, Italian, Japanese, Kazakh, Korean, Lithuanian, Macedonian, Malay, Maltese, Norwegian Bokmål, Polish, Portuguese, Punjabi, Romanian, Russian, Serbian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Tagalog, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Turkmen, Ukrainian, Vietnamese, Welsh
Age Rating: 4+

4+

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