All-In-One Calculator

Contains adsIn-app purchases
4.7
153K reviews
10M+
Downloads
Editors' choice
Content rating
Everyone
Enjoy this app for free, and many more free of ads and in-app purchases, with a GoogleĀ PlayĀ Pass subscription.Ā 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.
ā€¢ Use it for simple or complex calculations
ā€¢ Convert units or currencies in the same app
ā€¢ Enjoy easier homework or school assignments
ā€¢ Learn. See step by step solutions to your calculations

So, on with the features...

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

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

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

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

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

Finance
ā€¢ Currency converter with 160 currencies available offline
ā€¢ Unit price calculator
ā€¢ Sales tax calculator
ā€¢ Tip calculator
ā€¢ Loan calculator
ā€¢ Simple / Compound interest calculator

Health
ā€¢ Body mass index - BMI
ā€¢ Daily calories burn
ā€¢ Body fat percentage

Miscellaneous
ā€¢ Age calculator
ā€¢ Date calculator
ā€¢ Time calculator
ā€¢ Mileage calculator
ā€¢ Ohm's law calculator - voltage, current, resistance and power

Developed in Transylvania šŸ‡·šŸ‡“
Updated on
26 Oct 2023

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

Ratings and reviews

4.7
148K reviews
American_DAD (DAD)
29 August 2024
I really like the app. Love the features & types of calculators... "BUT" It needs a FACE LIFT. The appearance needs work. The color palate needs to be beeter, brighter & more contrast. The SIZE of the NUMBERS & symbols NEED to be MUCH LARGER !!!! With basically just those improvements, this could be a 5ā­ app. Thank you for a very good app & for your consideration of these suggestions.
91 people found this review helpful
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Grant Williams
12 July 2024
I like all the different equation buttons for different things. Looks like a lot of overwhelming buttons at first and a small learning curve to have to hit the calculator button first then you get a key pad that's useable. BMI calculations, discount calculations, even conversions for temp or measurement. I enjoy it a lot and use it multiple times daily.
90 people found this review helpful
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Kendall Davis
18 July 2024
I started using this in 2017. I haven't been without it since. I'm still just as pleased and impressed with it in July 2024. Pretty much any type of calculation or conversion I may need, it has covered. I think it would stand out as a best-in-class against any category or type of app. It's just that well designed, organized, and built to purpose.
85 people found this review helpful
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What's new

Version 2.2.8
Added Android 14 support.
Minor bugs and fixes.