Calculate economically : Citizen Business Line desktop calculators. The economic series for the every day office use.

A normal working day is often made of effort and hard. And for every day tasks you need the perfect tool to perform on your target. So for this we create the Business Line Desktop calculators.  With the Citizen CMB1001BK, there is no compromise, just the performance and the reliability of the Citizen products

Citizen CMB1001BK: Applications & key features

The Citizen CMB1001BK is the perfect partner for a wide range of demanding user applications :

-1-Line Display

-10-Digit Display

-Dual power: Battery & Solar

-Fixed Angled Display

-Square Root Function

-Auto-sleep mode

-4-Keys Memory Function: MC,MRC, M+, M-


The Citizen CMB1001BK is a product from Citizen's extremely wide and diversified range of calculators, which includes everything from compact pocket devices to highly sophisticated calculator models.


About Citizen


With more than a century of producing ground-breaking technologies and electronic solutions, Citizen’s business is based around that of innovation and the company’s work ethos of ‘loved by citizens, working for citizens.’ This is a philosophy that is engrained throughout its 21,000 strong workforce. Combined with Citizen’s exceptional engineering expertise, this makes Citizen’s products responsive to the market with each and every product designed and manufactured with ultimate functionality, style and usability in mind.

Color black
Dimensions 102 mm x 31 mm x 137 mm
Weight 90 g
business desktop calculator
business desktop calculatorbusiness desktop calculator
  • 1-Line Display
  • 10-Digit Display
  • Battery & Solar
  • Fixed Angled Display
  • Square Root Function
  • Auto sleep mode


Square root Mathematical Function
Change (+/-)
Double Zero
4-Keys Memory Function Four Memory Keys (MC, MR, M+, M-)

Display & Power

Display LCD
Display Style Fixed Angled
Lines 1
Digits 10
Power supply Battery & Solar
Battery type AG-10 (LR1130)
Auto Turn Off Switches off the calculator automatically after a certain period of time

Support and Downloads

We truly care about our users and our product.