Unit converter, Convert metric

Contains adsIn-app purchases
7.82K reviews
Content rating
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About this app

This Unit converter is the best Conversion calculator app on the market right now because it's made with you and for you. This Unit converter is very intuitive to convert all currencies, weights and measures. Use the powerful conversion calculator to do all your maths in the app. Convert units and metrics.

Unit converter

This unit converter is a simple calculator for units, very easy to use, and very helpful to change measurements from/to imperial metric and universal system calculator.

How to convert units like Miles, Inches, Feet or kilometers?

So easy! Choose the type of measure among the icons, then scroll to the two units you are looking for. The Unit converter is ready for the unit conversion!

Convert Units

Here is all category included in the measurement converter:

- 🏋️ Weight & Mass Unit: lbs to kgs, kg to lb, kg to pounds or pounds to kilos
- Temperature Unit: Fahrenheit to Celcius - °c to °f
-📏 Convert Distance & Length: Convert Miles to kilometers, Inches to centimeter etc.
- 💧 Volume, quantity et capacity
- Time, duration and period: Second, Minute, Hour, Day, Week, Month, Year
-📏 Size
- Speed
- Computer memory unit
-⚡️ Energy, power, heat and thermodynamics
-⛽️ Fuel consumption
- 💡Electricity Unit
- 💲Currency: with forex trading currency exchange rate
- 👠 Shoes and clothes size converter (men, women, kids, and babies)
- 📐 Angle
- Force
- Pressure
- Flow

Why using a conversion calculator?

Every day, I have many emails asking to add new units, new conversions...
This conversion calculator is an application designed to efficiently convert units of measurement such as speeds, temperatures, time, weight and distances etc.! It will help you make your cooking recipes, maths homework, etc. Convert anything you want.

Help us to make a better conversion calculator

Keep in mind that this converter is constantly evolving. Got an idea for improvement?
Can't find a category? Can't convert units? Please, send me an email to olivier@oworld.fr.

I really want to make this unit converter the best one in the market with your help. I will do my best to reply to your emails as soon as possible. I will update this Conversion calculator every time it's needed.

I look forward to your thoughts. This Unit converter can solve everything.
Updated on
Apr 15, 2024

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.
This app may share these data types with third parties
App activity, App info and performance, and Device or other IDs
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

7.53K reviews
May 8, 2024
I really love the app, however, if I have opened it previously and it remains in memory, and I open it again, it just shows the splash-screen forever and never goes to the actual conversion areas. Does the paid version have this same issue? I really don't want to pay for the full version and then find out I have to still clear it out of memory just to open it again to get it to work. Will be checking out other apps to see what they have to offer. Too bad, this is a good app when it works!
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oWorld Software - App for everyday !
May 10, 2024
Hi, can you please try to uninstall and reinstall the app. Please contact us at olivier@oworld.co if the issue persists.
March 22, 2024
All parameters were covered but after locating my comparisons I could not find where to input them to receive the equivalency. I used another app previously with great ease but it is not available for my new phone's system (Motorola). Disappointed in and uninstalling app!
1 person found this review helpful
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Eva-James Watts
November 18, 2020
I just installed, it seems to have a great way of giving all possible conversions (lengths /widths) unfortunately it takes to long to open upon initiation and then its flooded with advertising, too bad! I like the layout/accuracy but quick use is also essential. unfortunately I believe I will be uninstalling... it should be faster than googling the conversion! good luck!
84 people found this review helpful
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oWorld Software - App for everyday !
November 18, 2020
I regret that you did not like the app, but thanks for the feedback. You can remove the ads with an inapp purchase.

What's new

Add new category: Date, Percentage, Ratio, Circle conversion
Add Bra category
New interface, feel free to email at olivier@oworld.co to tell me what you think.
Add a privacy policy on the settings menu
Add combine units like ft + in etc.
New interface for scale categories
New category and new units!
Add a tutorial
Add a favorites category for quicker conversion
New category and new units!