Calcium - A Better Calculator For The Nokia E61
Let me publicly profess how much I admire the two geniuses behind the free calculator Calcium. The application is so simple and smart - a real delight to use. It makes me wish that I would have thought of this.

Not only is the application stylish but it provides the best usage of the joystick on the Nokia E61 I have seen so far. While most applications only use the joystick as a means to navigate on the screen Calcium incorporates actions into the joystick! Very clever. Why didn't I think of that…
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The application has assigned a joystick movement to each of the four basic arithmetic operations. Moving the joystick up represents addition, down represents subtraction etc.
The application is not as advanced as the built in calculator but much easier to use. My major complaint with the native application is the number of clicks/movements to perform a simple calculation. I dislike math as it is but being forced to move the cursor up, down and sideways makes me really irritated.![]()
Not counting entering the numbers it is a simple 2 clicks/movement procedure to calculate 2.1x 89 = using Calcium. You just enter 2.1, move the joystick to the right (multiplication) enter 89 and press in the joystick - voila!

However, using the native calculator it takes 6 clicks/movements to perform the same calculation.
Head over to Mtvoid and take a look at Calcium and their other product - Controlfreak 2.
July 30th, 2006 at 5:43 pm
all i can say is it looks like…… IPOD! (like everything else… lol)
but, yeah it looks like a great replacement to the current calculator. however i’m still looking for something that does scientific calculations, much like what i have in my palm t|x (which i’m replacing with my E61). can this one do that?
great post!
July 30th, 2006 at 10:48 pm
It gave an error saying ’sis not supported’ when i tried to install it over my E61
July 30th, 2006 at 10:50 pm
This one is really nice… The design is great and It’s so easy to use !
As usual, thanks again for finding for us these kind of tools
July 31st, 2006 at 12:22 am
Something which does percentages would be useful too.
July 31st, 2006 at 12:29 am
Nice… is it made on FlashLite?
July 31st, 2006 at 4:42 am
Smart, but not so usefull for percentage calcules.
July 31st, 2006 at 9:16 am
Yes, the native calculator has more functions than Calcium but for the basic four operations Calcium is much easier to use. Also, the UI is as “lickable” as the iPod
July 31st, 2006 at 10:57 pm
Looks like too many people have tried to get the application today. I’m getting 509 errors for b/w limit exceeded from the calcium site. Next time I’ll be the first to d/l your recommended software.
August 1st, 2006 at 9:51 am
Wonderful!Cool!It’s so simply but is so nice that I like that so much.Thank you.Got it.
August 1st, 2006 at 12:39 pm
Great! But, maybe I am missing something really obvious here. How do you enter a decimal point? I can’t enter something as simple as 2.1, when I try I just get 21 as the program seems to ignore the decimal point (full stop) on the keyboard.
August 1st, 2006 at 1:51 pm
Hi Simon,
To enter a decimal just use the # key. 2#1 = 2.1.
Cheers
August 2nd, 2006 at 5:44 pm
This is replacing the calculator on my phone. Though I must say that it is a bit out-of-the-norm to use the # for the decimal. I would readily press the fullstop.
August 2nd, 2006 at 6:31 pm
I agree Patrick, I had to read the manual to figure that one out - it wasn’t logical to me to use the pound key for a decimal.
August 6th, 2006 at 9:56 am
[...] I really like the phone and have been pleased with most aspects of it. Check out the most excellent blog on the Nokia E-Series devices. I just learned about Calcium - A Better Calculator for the Nokia E61 there (thank goodness - the built in one sucks) and this Automatic Key Lock Application. [...]
August 13th, 2006 at 3:14 am
this software is just superb and great help and ease in navigating!
August 13th, 2006 at 10:46 am
Armand, I do find it very easy to use I do a lot of calculations
August 14th, 2006 at 5:03 pm
Hi.. I was given a nokia E61 as a gift.. My problem is that my E61 it stop receving text messages. I have to hard reset my devices. In order to receive them.. I’ve spend several hours on the phone with cingular. My provider is cingular. ANY solutions… please help. I work in the system department @ work and I need my text message, because my server goes down it will text page us…
August 27th, 2006 at 12:28 pm
: } ((((
Calcium site is over bandwidth, no downloads or any sort of access!
September 5th, 2006 at 11:29 pm
Hi, I am the programmer of Calcium. I managed to get an E61 for testing and fixed the decimal point bug. I have also made a customised version for QVGA devices like the E61 so the operations dial doesn’t look so ugly (due to resizing). The link is:
http://mtvoid.com/calcium/Calcium_qvga.sis
- Trent
September 7th, 2006 at 6:56 am
[...] I have mentioned before how much I like the application Calcium. Now mtvoid, the makers of Calcium and Control Freak, has released a new version of Calcium. [...]
October 29th, 2006 at 2:25 pm
Hi! Calcium is really great app, but in the new, for nokia e61-optimized version is still 1 bug: no 3 needs still pressing a blue button:-(
December 29th, 2006 at 8:58 am
Funny thing with Calcuim. After I installed it on my E61 I tried it out. I can not seem to enter numbers. The joystick seems to function, but pressing the 0-9 keys on the keypad only results in a beep. Am I doing something really stupid?
Tks
December 29th, 2006 at 9:04 am
I submitted the earlier reply stating that I could not enter numbers into Calcuim. I later found the optimized version of Calcuim for the E61, installed it and all is great now. Tks
February 22nd, 2007 at 5:04 am
Has anyone seen a calculator who knows mathematical rules like calculating ^ before x and / and before + and - without using (). Calcium doesnt support this (as many other calculators for the series).
Any suggestions ?
Wishes from austria
HP
February 22nd, 2007 at 6:56 am
Hi Netpet,
Did you try this capable calculator:
http://www.e-series.org/archives/220