UseTool Converter - Calculator

In-app purchases
2.42K reviews
Content rating
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About this app

UseTool combines universal converter and efficient scientific calculator in one app and lets you customise the interface by your own taste. We tried to pick for you the most frequently converted categories and values so you don't have to switch between different apps to find an appropriate conversion.


- integrates converter and scientific calculator in one cohesive app
- currency converter with currency automatic detection by location
- interface customisation (color, font style, background)
- saves your calculation history and conversion preferences
- over 80 categories and 4000 values for conversion
- specifically adopted design for tablets
- numeric system support (BIN, HEX, OCT and DEC)
- radians and degrees support
- calculates trigonometric functions, square root, power, factorial, logarithm and percent



- Speed
- Pressure
- Length
- Force
- Area
- Power
- Data
- Mass
- Volume
- Energy
- Time
- Fuel
- Angle


- Electric Resistance
- Current
- Electric Field Strength
- Electrostatic Capacitance
- Volume Charge Density
- Electric Potential
- Electric Conductance
- Surface Charge Density
- Electric Conductivity
- Charge
- Electric Resistivity
- Linear Charge Density
- Linear Current Density
- Surface Current Density
- Inductance


- Magnetic Field Strength
- Magnetic Flux
- Magnetomotive Force
- Magnetic Flux Density


- Fuel Efficiency - Volume
- Heat Flux Density
- Thermal Expansion
- Temperature Interval
- Thermal Conductivity
- Heat Transfer Coefficient
- Specific Heat Capacity
- Fuel Efficiency - Mass
- Heat Density


- Radiation - Activity
- Radiation
- Radiation - Exposure
- Radiation - Absorbed Dose


- Flow
- Viscosity - Dynamic
- Flow - Molar
- Concentration - Molar
- Surface Tension
- Permeability
- Flow - Mass
- Concentration - Solution
- Mass Flux Density
- Viscosity - Kinematic


- Luminance
- Illumination
- Digital Image Resolution
- Luminous Intensity
- Frequency Wavelength


- Moment of Inertia
- Specific Volume
- Acceleration
- Density
- Velocity - Angular
- Moment of Force
- Acceleration - Angular
- Torque
- Engineering


- Typography
- Volume - Lumber
- Data Transfer
- Prefixes

Try it and give your feedback, we will try our best to support you and to accustom the app for your needs!

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Updated on
Apr 12, 2019

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

Ratings and reviews

2.27K reviews
Anupe Vincent
June 5, 2021
One of the best rounded convertor apps on the app store. Been using this for a couple of years now. Plenty of categories to choose from and a very novel interface. Love it!
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E Small
January 16, 2021
Use this regularly! Great calculator with history of past calculations, and a convertor for almost anything you'd ever need to convert! I've had it for a few years now.
1 person found this review helpful
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A Google user
March 5, 2019
Love this app, but I see some of the conversions are wildly wrong - litres/100km to mpg, for example.
1 person found this review helpful
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What's new

- Fixed currency converter

If you like our app, please take a moment and rate us in the Play Store. Thank you!