All-In-One Calculator
July 17, 2024
More About All-In-One Calculator
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 🇷🇴
Latest Version
2.2.8
July 17, 2024
allinonecalculator.com
IT Tools
Android
14,011,641
Free
all.in.one.calculator
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User Reviews
A Google user
5 years ago
I have just got this app and it seems very intuitive and has so many options. You have the occasional ad, but nothing that is too invasive or irritating. If you need to convert any type of unit ranging from temperature, to weight, and even shoe size and length between genders and ages. It shows all calculations between all units in that category. Oh and it has a convenient calculator for good measure. This app goes above and beyond.
Mark Ingle
4 years ago
This calculator app is very awesome and comprehensive. It opens to a main menu, and if you want to use a simple calculator you just press one button and it's opened. There are other types of calculators available within this app that are used for some specific purposes, some which are practical, some which mathematic or scientific in nature. All of the calculators are easy to use, with clean layouts and are categorized. You can also select favorites from them to appear on your main menu first.
Andrew Gilreath
2 years ago
This is, hands down, the most powerful app in this genre with a great UI to boot. You can replace a handful of other apps with this one. Has option to ditch adds for a cheap, one-time, fee. However, it's advertising trackers seem to be the most active among all my apps by a long shot. I'm not even sure what this means, but the fact that my phone has to block trackers from this app nearly 50x more than any other app is almost enough to make me want to delete it. ALMOST. I'll give 5 if fixed.
Stephen Liu
2 years ago
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.
A Google user
6 years ago
does everything that I can think of and then some. it's the best calc app I have found, and use it quite frequently. I like the fact that it gives you everything at once in the calculations, and you just pick the results you need. you dont need to write down the numbers then go to a different screen to input those to get the numbers into another calc just to get the complete answers your looking for. it does have ads at the bottom edge of the screen, but none have popped up full screen blocking the use of the app, which is more than I can say for a lot of others. I will gladly view these over the alternatives, I keep my phone on airplane mode most of the day anyway.
A Google user
5 years ago
It's harder than you think to find a calculator app that isn't stupid simple (aka worthless). This calculator app, however is awesome. Ended my search! Tons of options, and really like the fact the scientific buttons are on one screen in both portrait and landscape mode. Lots of other apps either lack the scientific buttons, you have to swipe to get to them, or can only be accessed in landscape mode.
Kristin Cole
1 year ago
Simple & beyond expectations -- I was delighted at all of the options, many I wouldn't need to use but after I went through them all I ended up with 20 that I kept as "favorites" that I can reasonably expect to use with regularity. The app is fast, smooth, easy to understand, very customizable; has no unnecessary or distracting elements--everything about this app has value/purpose and looks clean & modern. I have been very pleasantly surprised & use it often.
Robert Britton
2 years ago
At first I didn't understand the UI. Figured it out pretty quickly. Overall quantity of functionality is very good, but it lacks a functionality set I actually need as a programmer. I need logical bitwise operations. AND, OR, XOR, NAND and NOR. Bitwise left and right shifts are needed too. Also, it needs the ability to specify word length.
A Google user
5 years ago
Ads are not intrusive but I wish there was a paid version to get rid of them just the same [[edit, very prompt response from developer, thanks!!]] . otherwise a great app with a lot of tools in one. The interface is very intuitive to find exactly the tool you need quickly and I am vompletely in love with being able to put it on my status bar for quick access
Megan Elizabeth
1 year ago
I've only ever used the calculators that already came loaded onto my devices. Or Google's version, which is fine, but extremely basic. So, when I started using this FREE calculator app I was really pleasantly surprised by just how many functions are offered. You'll be able to accomplish any calculation both simple and difficult, as well as unit conversions, and any other complex equation you may need to solve. Which, overall makes this app the best!
Anna Nabil
2 years ago
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!
Broderick Elliott
1 year ago
This calculator is excellent is many ways. However, it has one major flaw. It only allows limited input of variables. For instance, in calculating a right triangle, it only allows the user to enter sides A+B. If the user knows side A and angles A+B, the calculator won't allow the user to input the angles. This limits the usefulness of the app for certain applications, such as accurately selecting the needed length of a crown molding face over an open closet.
Neil O'Brien
1 year ago
Really a perfect calculator app. The basic calculator function has everything I've ever needed and includes history. Where it really shines is the unit conversion calculators. Almost any type of conversion and unit you could ever need is included, you can mark the ones you use frequently as favorites so you can access them faster, and you can see the same value in however many different units you want all on the same screen. I use this literally all the time and have nothing bad to say about it.
Main Trane
1 year ago
The increased functionality over standard calculators is indispensable, and worth the price I payed. Having shortcuts to easily evaluate simple equations and perform conversions is the primary criterion for installing this. What it's missing is the option - or preferably defaulting - to have your inputs remembered when using the different modules within a session. The real detriment is that it routinely forgets the entire *calculator* history; forcing me to revert to my stock Android calculator.
R G O 2 (BaelRathLian)
1 year ago
Great app missing a few things. Would probably buy pro version if it had the missing stuff added. BTW : Found part of what I was looking for. I was expecting a different directory from the one it was in. UPDATE: After all this time it still can't do a conversion of mAh to Wh. Really need this to be added. Also where is the cubic inches calculated? Have not found that one either.
Some RandomJim
1 year ago
In general, I really like this app. The one thing that really bothers me is when you minimize the app after doing a calculation, and then bring the app back up to enter a new calculation, it doesn't automatically clear the previous calculation. It just adds the numbers that you're starting to type on the end of the previous calculation. It also annoys me when you press C to clear, the weird flash across the display.
Chelsea Nolder
1 year ago
So far it's been GREAT! Was looking for a calculator widget, and this was it for me! Simple layout - I do wish you could adjust it's opacity though but it can be resized and that's convenient. You can also use it as an app and has SO many different equations, conversions, and other things that I may never personally use but it's cool that it's available if I ever needed to, FOR FREE! 🎉 (ex. Algebra, Geometry, BMI, etc.) I will update if I run into an inconvenience, annoyance, or actual problem.
Michael Hagerty
1 year ago
Looks like a great app. Popup every other screen with delay x. It is very annoying while searching for features. There are so many features that are difficult to locate the most common. I couldn't find the converter i needed with all the ads. I would buy the add free version of this app if i was sure i could use it. But so many adds I couldn't effectively evaluate its utility.
Quinn Harleem
1 year ago
This calculator is one of the best I have ever seen/used, it has several features helpful in day-to-day tasks. It also contains a widget to keep on your home screen. One of my favorites is the currency converter, easy and reliable. This calculator also helps create and solve missing equations, including quadratic equations, which I must say is a wonderful equation, parabolas, am I right? It has tabs on many important parts of our lifestyle, such as finance. It also has basics, like algebra.
Grant Williams
10 months ago
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.
