Unit Converter Pro

4.8
2.7K reviews
50K+
Downloads
Content rating
Everyone
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About this app

Unit converter Pro is the 6th set of Smart Tools® collection.
This app includes Currency (money, Bitcoin) exchange rates. This app has no ads, and ads are replaced by useful texts.

There are a lot of unit conversion apps on the market. However, most are inconvenient and difficult to use because of poor and complicated UI.
This app has intuitive and simple UI, that is designed for casual user like you. Trust me.

I've sorted essential unit sets for your daily life into 4 categories.

- Basic : length (distance), area, weight (mass), volume (capacity)
- Living : exchange rate, temperature, time, speed, shoes, clothing, hat, ring
- Science : pressure, force, work (energy), power, torque, flow, current, voltage, density, viscosity, concentration, astronomy
- Misc. : angle, data, fuel efficiency, cooking, illuminance, radiation, prefix, binary, time zone, blood sugar, hardness, AWG

It shows different unit sets depending on user's country. When you need more units, please send me an email at androidboy1@gmail.com.


* Do you want more tools? Download [Smart Tools 2] package.

For more information, watch YouTube and visit the blog. Thank you.

★ android.permission.INTERNET: for receiving the latest exchange rates from the servers.

* It is a one-time payment. The app price is charged only once.

** No internet support: You can open this app without any connection. After installation, open the app 1-2 times with your device connect to Wi-Fi or 3G/4G.
Updated on
Oct 29, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.8
2.49K reviews
Donald Shearer
July 29, 2025
It's my go-to app for a stellar converter. Best when sizing wrenches and sockets. I've had a chance to use the conserverter long enough to call it mine. Really, with us, the Liberians, and the Burmese, we're the only ones who use a real measurement system. But until the rest of the world chooses the English system, we've got the best of all apps to fool'em...
3 people found this review helpful
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Aaron Peck
November 8, 2020
Great App despite 4 Stars. I'm making it 4 just in the hopes the developer sees it. While I don't see and haven't had any major issue. I'd recommend currency names be in the country name. While most countries using AUS/USD/GBP is fine, some countries aren't as easily found. And other unit abbreviations are fine, I'd love to see a help section giving their names and searchable. For the lay person and me when I just totally forget what they are lol.
17 people found this review helpful
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Smart Tools co.
December 28, 2020
The layout option can show the currency names. Some currencies(XCD, XOF,...) are used in several countries.
Hiromi Nakano
June 8, 2020
Came from the free app that I used for years. With the last recent app update that now shows an ad everytime it launches, I started looking for a new conversion app. I had no idea you guys had a paid version, had i known, I would have just came over here. Works just as great as the free version but no ads, wonderful!
33 people found this review helpful
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What’s new

- v2.6.5 : Fuel efficiency of electric vehicles
(MPGe, km/kWh, mi/kWh)