All-In-One Calculator apk icon

All-In-One Calculator

Download All-In-One Calculator apk for free.

All-In-One Calculator apk icon

All-In-One Calculator

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 received 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 Scientific Calculator with 40 vibrant themes, 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
• 40 Light or Dark (AMOLED) themes
• 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)
• Sort, hide or add calculators to favorites
• 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
• 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

• Area / Perimeter calculator for square, rectangle, parallelogram, trapezoid, rhombus, triangle, pentagon, hexagon, circle, circle arc, ellipse
• Volume calculator for cube, rect. prism, square pyramid, sq. pyramid frustum, cylinder, cone, conical frustum, sphere, spherical cap, spherical frustum, ellipsoid
• Right triangle calculator
• Heron's formula (solve a triangle knowing the side lengths)
• Circle solver

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 🇷🇴

Editor's Note

Well known All-In-One Calculator is served to you by our experienced team for free and with the best downloading speed. You don’t need any subscription or register to download All-In-One Calculator developed and announced by MINDBOX. Current version of the apk file is 1.7.4 and we are trying to keep them up to date as always. The latest update issued on May 12, 2019. Also All-In-One Calculator is very famous in Productivity category. When you scroll down a little bit you can also check the App Info tab. You are always free to install All-In-One Calculator if your device android version is Android 17 and above. Thanks for downloading from our website.

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Mrs. Magdalena Brown

I am not lying when i say, \"THIS IS THE BEST CALCULATOR I'VE EVER USED!\" It truly has everything you could ever think of! Not only is is your basic simple calculator but, its a Scientific calculator as well. It has almost every form of equations and almost every formula to solve them. Its super easy to navigate and understand. This calculator Literally has EVERYTHING! From Decimal to Fraction formulas to Caloric Burn equation, From Data Transfer Speed, to OHM's Law. I LOVE THIS APP

Arthur Windler

love this app! it is very handy and useful for many unit conversions. However, one feature that I would love to see added, would be the addition of a time zone converter. Similar to the unit and currency converters, I would love to see the function of being able to add favourite time zones and being able to input a time into any slot and being able to see its conversions in all selected time zones, at a glance. I would even be willing to pay extra for this feature!

Mr. Anastacio Cremin DDS

Excellent interface, the pictures don't make it justice. Doesn't have as many units as others (Do you really need radiation units or surface tension on a phone?) but it is very complete for normie day to day, the seamless calculator integration with the interface make it a great all rounder. The ads are respectful and removable with an IAP.

Fausto Macejkovic

I have been checking out different things on this calculator and so far it is amazing. I love the idea of being able to put in a few numbers and it totals it up as I go. I gave a 4 star because I have not found a save button to save important bill figures but if there is one let me know where and I will definitely change my rating to a 5 star. Thank you.

Prof. Jaydon Walsh II

So many options. Kind of difficult to navigate at times. Especially when I hit, click, or long press something by mistake. Not sure how to undo my mistake. For example I was just using the simple calculator and all of a sudden a lined graph shows up and I couldn't remove it. Or should I say, I didn't know how to.

Prof. Twila Bogisich

I like this app, but there is a really frustrating thing in it. You can not change the language in the app, I wanna keep system lang english but want to switch app language to Czech because the titles of things are different.. please add this feature or I will go mad please

Ms. Virgie Medhurst

Fantastic! Helps me every day with calculations for fabric requirements for very large cushions. Couldn't be without this one. Has so many other uses too, since I ship overseas the finance calculator is invaluable. Thanks, brilliant work!

Floyd Graham

This app is one of the best, you can figure out several different options calculations on this app in no time atall, i love it , 5+++++++STARS

Name Howe

this is great, however it could be improved by adding a scientific calculator, with the same function as a casio one or the like. this would greatly improve it, and would turn this into 5 stars

Lavada Crooks

I LOVE this calculator. Absolutely the best I've ever used. Although it has advertisments, they are neither intrusive or excessive. I chose to buy the Pro version not to just remove the ads, but to give the financial support to the developers - they have certainly earned it by giving me such a fantastic tool. The conversion calculators are terrific. Very well done gentlemen!