23 converters in one free app — length, weight, volume, temperature, and more. Smart formatting, dark mode, and a design that makes every conversion effortless.
Convert anything — 23 categories, completely free.
Mila's Tools Unit Converter puts 23 converters in your pocket at no cost. Whether you need to convert temperatures for a recipe, check tire pressure in PSI, or calculate the days until a deadline, this app handles it all with precision and ease.
What customers are saying:
***** "Get it! Nothing better than this!"
***** "This is the best quick ref tool I have come across to date"
***** "Undoubtedly the best conversion app in the App Store."
***** "Best app for me so far."
***** "Intuitive interface. The app design is so easy you'll actually use it."
23 CONVERSION CATEGORIES
Length · Weight · Volume · Temperature · Area · Pressure · Energy · Speed · Time · Power · Force · Torque · Density · Angle · Fuel Economy · Flow Rate · Capacitance · Illuminance · Bits & Bytes · Blood Sugar · Dates · Fractions · Numbers
COMPOUND UNITS
Work with real-world measurements like feet + inches, pounds + ounces, or gallons + quarts. Values auto-normalize — type 13 inches and see 1 foot 1 inch instantly.
DATE CALCULATOR
Find the exact number of days, weeks, months, and years between any two dates. Add or subtract time from a date with quick-action shortcuts like "90 Days from Today" or "End of Year."
FRACTIONS & NUMBERS
Convert between fractions, decimals, and percentages. Translate numbers into Roman numerals, binary, octal, and hexadecimal. Explore magnitudes from thousands to decillions.
HISTORICAL UNITS
Go beyond modern measurements with ancient Egyptian, Mesopotamian, Greek, Roman, and Biblical units of length.
BUILT FOR PRECISION
Choose automatic smart formatting or set manual decimal precision from 0 to 10 places. Locale-aware number formatting respects your region's separators and conventions.
SMART CUSTOM KEYBOARDS
Purpose-built keyboards for every input type — numeric, whole number, Roman numeral, binary, octal, and hexadecimal — so you never have to fight autocorrect.
DESIGNED FOR YOU
• Dark mode with rich, category-specific color themes
• Comfortable or compact view styles
• Show or hide any unit in any category
• Available on iPhone, iPad, and Mac
I love this app because it is very simple and user friendly. I downloaded long time ago on one of first iPhones I owned and I have made sure to carry it on every phone afterwards. When you are crunching numbers together from Imperial to Metric, or vice versa, it will do all the math for you. This is great for home, office, or field work. I use it at home as much as at work at times. I work in the construction industry and have used this to convert numbers a numerous time. No matter if you’re at home or any occupation, I highly recommend everyone to download this. It’s also great for changing times like now, where units are now being used in unfamiliar areas around the globe.
Great app
<RAB>
I found this app recently when my old conversion app became too cumbersome to use. This has a great interface; rather than scrolling to find the exact labels for conversion (grams and ounces, for instance), you just go to the general category, e.g weight, and fill in the value you know. All the other values convert immediately, including the one you are looking for. It is so much easier than any other method. It has a wide range of categories, so I'm never at a loss. I've dumped my other conversion apps.
The BEST!!!
DrGGJ3
I’ve been using this app for YEARS and I continue to love it! It’s super convenient and so fast. The categories for conversions are intuitively broken down and by entering just one value, you get every single conversion automatically done in that category. It’s truly the best conversion app out there that I’ve ever used. I’ve never had an issue with bugs, crashes or delays. Whether you need to do conversions daily or occasionally, this app is the way to go.
Mila’s Tools Converter Review
ajdo101
I rarely write reviews but thought Mila’s conversion app was well worth giving a feed back. I am originally from Europe and have lived in the USA for over 20 years. As much as I am use to the Imperial USA measurement systems, I often go back to the metric system for it’s simplicity. I used browsers in the past to convert, until I found Mila’s app. Of course, I tested, tried and purchased several other conversions apps in the past, but Mila’s app brings simplicity and faster lookup than any other conversion app and tool I have tried before. The price is also a no brainer.Try it, use it… If you like it as much as I do, it will cost very little and most importantly will send your appreciation to the developer(s).Thank you
- Added inline input arithmetic (ex. 1024/52+5*3)
- New Angles category including radians gradians, sextants, turns, and more
- New "Number Systems" section added to Numbers category includes Roman Numerals, Binary, Octal, and Hexadecimal
- New historical units added to Length category including cubits, digits, palms, spans, and more
- New custom simplified keyboards
Version 2.5.1
The developer, Scott DeSapio, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Location
Identifiers
Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
Location
Identifiers
Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
Supported Features
Larger Text
Dark Interface
Differentiate Without Color Alone
Information
Seller
Scott DeSapio
Size
6.2 MB
Category
Utilities
Compatibility
Requires iOS 18.5 or later.
iPhone Requires iOS 18.5 or later.
iPad Requires iPadOS 18.5 or later.
Mac Requires macOS 15.5 or later and a Mac with Apple M1 chip or later.