All-In-One Calculator

Contains adsIn-app purchases
4.8
120K reviews
5M+
Downloads
Content rating
Everyone
Enjoy this app for free, plus many more free of ads and in-app purchases, with a Google Play Pass subscription. Try free for 1 month. 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...

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

75 CALCULATORS & CONVERTERS
• 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

Algebra
• 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

Geometry
• 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

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

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

Miscellaneous
• 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
4.8
120K reviews
Fatih Balsoy
July 19, 2022
This calculator beats Google’s calculator by a thousandfold! The “Material You” colors chosen by this app are not pastel, the clear button is back (with a satisfying animation), and the scientific functions are a swipe away. I love it! On top of all this and the pleasing design, it has graphing capabilities and lots of conversion tools. Removing ads from the app is totally worth it!
33 people found this review helpful
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Sonoma Mann
July 8, 2022
Quick, how many petabytes in an exabyte? This calculator will tell you. Me, I just add, or figure tax. And this is the best. Numbers big and clear. Buttons well spaced. Keeps a "tape" of past work that will save your bacon when (not if) you space out. Nice backspace feature. Huge set of functions slides away and doesn't clutter the UI. Convert to silly metric system, calculate compound interest... Geeking out or just doing simple arithmetic, this tool is impressive and elegant.
71 people found this review helpful
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Tyler Matthews
April 29, 2022
I love how versatile the app is from unit conversions, common calculation, to a calculator with a good layout. My single extremely irritating issue is the calculator history. When I want to grab an entry from the history, I want ONLY the result, not the whole damn expression. I cannot express how irritating it is to copy a long complex expression into another when all I needed was the result. And it's not intelligent enough to add parenthesis around the copied expression. That would work fine.
12 people found this review helpful
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allinonecalculator.com
April 29, 2022
Hello. You can long press on the history entry to paste only the result back into the field. Also, the parenthesis are a great idea!

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.