All-In-One Calculator

Contains adsIn-app purchases
123K reviews
Content rating
Enjoy this app for free, plus many more free of ads and in-app purchases, with a Google Play Pass subscription. Learn more
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About this app

The original All-In-One Calculator for Android
It's a FREE, complete and easy to use multi calculator & converter.

What does it do?
Designed with simplicity in mind, it helps you solve everyday problems.
From simple or complex calculations, to unit and currency conversions, percentages, proportions, areas, volumes, etc... it does it all. And it does it good!

This is the PERFECT Calculator
Passionate development combined with constant feedback we receive from our users resulted in that we think is the best multi calculator on the store.
Featuring over 75 FREE Calculators and Unit Converters packed in with a Simple or Scientific Calculator, it's the only calculator you will need from now on on your device.

Oh, and did we say it is completely FREE?
Yes, it is free. We think everyone should enjoy this.

If you are a student, teacher, engineer, handyman, contractor or just somebody who struggles with math & conversions, you really should give this one a try.
• Use it for simple or complex calculations
• Convert units or currencies in the same app
• Enjoy easier homework or school assignments
• Learn. See step by step solutions to your calculations

So, on with the features...

• Simple or Scientific layout
• Editable input & cursor
• Copy & Paste support
• Calculation history
• Memory buttons
• Function graphing
• Dec, Hex & Binary
• Floating calculator
• Widget

• Algebra, Geometry, Unit Converters, Finance, Health & Misc
• Currency converter with 160 currencies (available offline)
• Instant results delivered as you type
• Step-by-step solution & formulas
• Smart search for faster navigation
• Create shortcuts on home screen

• Percentage calculator
• Proportion calculator
• Ratio calculator
• Average calculator - arithmetic, geometric and harmonic means
• Equation solver - linear, quadratic and equation system
• Combinations and permutations
• Decimal to fraction
• Fraction simplifier
• Prime number checker
• Greatest common factor & Lowest common multiple calculator
• Random number generator

• Shape calculators for square, rectangle, parallelogram, trapezoid, rhombus, triangle, pentagon, hexagon, circle, circle arc, ellipse
• Body calculators for cube, rect. prism, square pyramid, sq. pyramid frustum, cylinder, cone, conical frustum, sphere, spherical cap, spherical frustum, ellipsoid

Unit converters
• Acceleration converter
• Angle converter
• Length converter
• Energy converter
• Force converter
• Torque converter
• Area converter
• Volume converter
• Volumetric flow converter
• Weight converter
• Temperature converter
• Pressure converter
• Power converter
• Speed converter
• Mileage converter
• Time converter
• Digital storage converter
• Data transfer speed converter
• Numeric base converter
• Roman numerals converter
• Shoe size converter
• Ring size converter
• Cooking converter

• Currency converter with 160 currencies available offline
• Unit price calculator
• Sales tax calculator
• Tip calculator
• Loan calculator
• Simple / Compound interest calculator

• Body mass index - BMI
• Daily calories burn
• Body fat percentage

• Age calculator
• Date calculator
• Time calculator
• Mileage calculator
• Ohm's law calculator - voltage, current, resistance and power

Developed in Transylvania 🇷🇴
Updated on
Jun 15, 2022

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
This app may collect these data types
Personal info, App activity and 2 others
Data is encrypted in transit
You can request that data be deleted
123K reviews
Stephen Liu
September 14, 2022
When it describes itself as the perfect calculator, they aren't exaggerating. At least for my purposes. It has a clean, fluid, easy to figure out UI. The calculator does everything you'd expect a scientific calculator can do. However, it also has a bunch of unit converters and other neat tools, and you can remove ads for a very fair one time fee. Very versatile app.
9 people found this review helpful
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Carrie H.
September 11, 2022
Best calculator app around. And I'm picky about apps.. assumed I would be deleting it shortly after download, but had it for months and use it regularly.. Can be used for anything you would possibly need a calculator for and even more conversion formulas you didn't know you needed until now. Very few ads.. don't always see them. Very few and far between. 🌟🌟🌟🌟🌟
15 people found this review helpful
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Anna Nabil
August 13, 2022
The versatility and ease of use is phenomenal, plus my fingers don't strain with this layout. Honestly I've tried 4 diff calculators, but no other app beats this one. The ads aren't obstructive or distracting. Calculator is accessible via a floating icon from any window. It offers so much functionality, but maintains simplicity. Appreciate the ability to save my settings, so I don't have to input all over again each time. Put simply, the UX is awesome!
73 people found this review helpful
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What's new

Version 2.2.4
• Fixed the calculator widget behavior.
• Added a way to manage favorites from the main screen.
• Added the floating calculator to the app icon shortcut menu.
• Changed the dark mode black theme to be AMOLED friendly.
• Persisted the calculator memory between sessions.