Chris Messina

Omni Calculator 2.0 - Your life in 777 free calculators

by
Top Hunter

There are numbers in everything you do. Omni Calculator has 777 easy to use, fast and amazingly fun calculators, so you always get the number you need.

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Mateusz Mucha
Hey there! First of all, thanks @chrismessina and @farhan_khan23, you guys are great! I'm Matt, the founder of the Omni Calculator Project. The whole project is meant to scratch a huge mental itch I've always had - people rely on intuition way too much. They don't calculate because they lack basic arithmetic skills, don't have the time or simply hate doing maths. We're here to remove these obstacles and make calculations easy, fast, and kinda fun. We built all sorts of calculators - simple ones for the simplest tasks (even as simple as properties of the circle or square root) or more complicated, such as Thermodynamic Process ( https://www.omnicalculator.com/p... ) or Online Marketing ROI Calculator ( https://www.omnicalculator.com/f... ). We're also super lucky in being able to use our own product to build awareness around important problems that face the planet, we built The Plastic Footprint Calculator ( https://www.omnicalculator.com/e... , just covered by The New York Times and National Geographic!), Smog Calculator ( https://www.omnicalculator.com/e... ), Car vs Bike Calc ( https://www.omnicalculator.com/e... ) and Social Media Time Alternatives ( url ). Something for the PH community: we started a startup collection recently - https://www.omnicalculator.com/c... (thanks @writerpollock for the idea!). Top features: - All calculators are freely embeddable on 3rd party websites. - Most of them are multidirectional (you can start anywhere you like, any variable can be either an input or an output of a calculation). We're a team of 21 people from Poland, Spain, India, Hungary, Philippines, and England. Most calculators are built by Ph.D. students who want to make their expertise useful for others. All calculators are free and will stay free forever, that's the only way to reach everyone on the planet :-) Please visit the site and enjoy our hard work!
Marcin Manias

you would think a "calculator website" would be limited in scope to the "math' stuff. You could not be more wrong. They have a big range - from finances, to health, construction and everyday. Basically if something can be calculated they do it.

Pros:

-easy to use -varied categories -each calculator has an easy to follow explanation

Cons:

-could implement a way to star or upvote a calculator

Radek Zaleski
one of my favorite web apps ever. fun fact - I advised Mateusz to develop Omni as mobile apps sometime ago. I am idiot.
Derek Shanahan
Finally a time value of money calculator that isn't ugly as sin + easy to use. Nice work!
Farhan Khan
@dshan That's exactly how we want our users to feel. Thanks for your kind words. :)
Piotr Małek
I absolutely love this platform, it has proven to be really useful in so many situations, I can't even count them all. Lots of really fun, intriguing tools along with hundreds of calculators for almost any real-life situation. The team is also very responsive to feedback and are always on the lookout for new tools to build. Awesome platform.
Farhan Khan
@piotr_malek1 Thanks for the kind words ;) We are always exploring new ideas and welcome every silly-genius idea. So much so, we want to make an open system where people can build their own calculators. (Shhhh) Hope we start this project soon.
Beata Mosór-Szyszka
Congrats Mateusz and the team - looking for evidences is crucial nowadays, and you help people to decide based on facts, numbers.
Mateusz Mucha
@beatamosor Thank you, we love you guys :-)
Łukasz Białek
Congratulations Omni Calculator for a great product!
a
Absolutely love this calculator! Have used it numerous times for homework.
Mateusz Mucha
@gabef I'm glad our work is useful. Please share Omni with your classmates :-)
Jack Bowater

my go to place for my calculator needs

Pros:

intuitive design

Cons:

could allow you to build collections

Belei Margallo

Keep it up.

Pros:

Very useful

Cons:

Nothing to say. Good job.

Valeria Orlova

some calculators are really impressive. I think everyone should try plastic usage calculator, nice to know such things

Pros:

great tool for everyday life and specific needs

Cons:

did not find

Well done Farhan and Mateusz! Bookmarked and will be using multiple times a week.
Farhan Khan
@jarrod_morris thank you :) These tools can be embedded conveniently to websites too.
Reina
Got excited to see the Stress Calculator!! Turns out it’s a Physics equation 😲 There should be a Human Stress Calculator, don’t you think?
Farhan Khan
@reina hahahahaha duly noted. Will dig out some algorithms for that. In case you need to share more ideas let us know at farhan@omnicalculator.com
Marta Todorczuk
Combination of solid data & genuine fun. Great example of minimalistic design working together with engaging storytelling! :)
Mateusz Mucha
What a nice copy :D
Tomasz Jedynak

how far are you going to get? Is a magic 777 caclulators your last word? are you still developing new calculators?

Pros:

- hundreds of calculators in one place - intuitive layout - brief description how each calculator works

Cons:

- I wish I had an oportunity to develop my own callculator on the webpage

Rodolfo Marques
Just wanted to thank you all, this is such a time saver on building projects for clients! Please make a donation button avaliable on your website!
Farhan Khan
@rodolfo_marques Thank you so much for your kind words. Hahaha there is our contact address below on the website. We accept huge bags of cash via mail. 😝
Chris Parjaszewski
@mateusz_mucha - do you consider more graphs in future? Numbers are sexi, but graphs, animations are easier to understand. If I would be able to modify graph parameters to get different results - that would be killer feature in understanding & further explaining complex calculations, starting from diet ending with buying a new house/mortgages!
Mateusz Mucha
@chrisparjaszewski we have fairly basic support for graphs, but they aren't really interactive (other than the fact that you can click on a chart and see what's the value at any given point). Here's one example: https://www.omnicalculator.com/f...
Farhan Khan
Dear Hunters, Did you know there is a Lost Socks Calculator (https://www.omnicalculator.com/e...). Tell us which one is YOUR favorite?
Anna Rys

To illustrate the above: in the body fat calculator, an image of where/how exactly to measure the forearm, the wrist and the hip would be great.

Pros:

The UX is great, I love how simple and straightforward it is. The extra content/tips next to the calculator are a good idea too.

Cons:

The "for fun" calculators are awesome but I wish there were more tips on how to do certain measurements in the more "serious ones.

Mateusz Mucha
Thanks a very insightful comment, thank you :-). We're planning a big'ish project where we'll go through all of our calculators and see if we can improve them with features implemented over the recent months. One of them is an ability to add text/charts/pics anywhere within the calculator, not just at the end, like here: https://www.omnicalculator.com/a... (this one is not published yet; I believe it has precisely what you're asking for :-))
Tomasz Konik

Whether you like or not - it is really worth trying!

Pros:

Everything ;-)

Cons:

No satisfying calculation for chinese Moon landing programme yet ;-)