US-Metric/Imperial Converter

MobiSys

About this app

🔁 The Smart Metric ↔ US Unit Converter

Convert Metric, US Customary, and Imperial units instantly — whether you’re shopping, cooking, traveling, studying, or living in the United States.

Designed to be fast, offline, accurate, and distraction-free.

⚡ Key Features
✔ 20+ conversion categories, including:
Area, Cooking, Distance, Energy, Flow, Fuel Efficiency, Length, Light, Liquid Volume, Pressure, Speed, Digital Storage, Temperature, Time, Torque, Volume, Weight, and more.

✔ Metric ↔ US / Imperial conversions made easy
All commonly used units are available directly on the home screen — no extra screens or unit switching.

✔ Works fully offline
No internet needed for unit conversions (currency rates update online only).

✔ No ads. Ever.
Enjoy a clean, uninterrupted experience.

✔ Privacy-first & safe
No permissions required. No login. No data collection.

✔ Lightweight & fast
Uses minimal storage and runs smoothly even on older devices.

✔ Available in 26 languages
Perfect for international users and travelers.

🛠️ Extra Tools You’ll Love
• Currency conversion (rates from the European Central Bank)
• Set favorite conversions as your home screen
• Conversion charts for commonly used values
• US time zone converter (4 major US time zones + state comparisons)

✈️ Perfect For
✔ Travelers visiting the US
✔ International students and professionals
✔ Online shopping & measurements
✔ Cooking, recipes, and baking
✔ Everyday quick conversions

⭐ Users all over the world Love this App
• Simple, modern, and intuitive design
• Highly rated by users worldwide
• Reliable, accurate, and easy to use
• No clutter, No ads, No distractions

Ratings and reviews

It run on newer android good, doesn't compatible with android 4.4.4, force close on app start, but the about app page say it only requires android 4.4 and up, I use old phones to test apps. Wish I could delete some of the units I don't use on the MobiSys Unit page, and add some offen use units to it, that way don't need to navigate back and forth from one to another units, but it's already a great app for free and best NO ads. Thanks

This is an excellent app that does exactly what it says it does. Extremely useful to me, as I do a lit of juggling between metric and that strange and complicated thing that is the Imperial system. Currently, the currency converter refuses to open, even though I uninstalled and reinstalled the app to make sure I have the latest version. I rarely need that conversion, anyway, and I'm not going to take off a star because of a no doubt temporary issue.

I've had this app for two years as an American who has moved to Europe and I have to say it is genuinely a very good app. It's not super fancy with little animations, it's nice and simple and does exactly what it says it'll do with no issues, no ads, and no fee. Very strongly recommend this. Editing this: I still love the app as of 2024 but really wish there was a grams to cups conversion and vice versa.

What’s new

Upgraded to the latest Android version to enhance performance.