Monroe Systems for Business

Monroe 8130X 12-Digit Basic Function Heavy-Duty Accounting Printing Calculator

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  • Front view of Monroe 8130X Ivory Print Calculator/Adding Machine
  • Front view of Monroe 8130X Black Print Calculator/Adding Machine


Monroe 8130X Heavy-Duty Printing Calculator

The standard for heavy-duty desktop printing calculators, the Monroe 8130X serves as the entry-level, heavy-duty model with one of the strongest followings. This model is popular within casino cages and supermarket chains because of its ability to run 24/7 without failure and because it outlasts and outperforms any other competing model available. The Monroe 8130X features our newly updated printer which, for the first time in Monroe history, is compatible with supplies such as the Monroe M33X ribbon cartridges, Monroe P65M ribbon spools and our signature 15 lb. or 20 lb. paper rolls. Using our high-quality Monroe supplies will provide you with the optimal print quality.

Key Features

  • Print speed of 5 lines per second
  • Slide switch to select running subtotal or grand total
  • Enclosed paper roll to protect from dust build up (read our blog on the enclosed paper roll)
  • Indicator lamp (making users aware of an active calculation)
  • Automatic total print above tear-off knife
  • Hidden storage compartment for a spare paper roll and a twin-spooled ribbon to reduce downtime
  • Independent operation of multiplication and division capability, enabling the user to multiply and divide during addition and subtraction

Those who know, choose Monroe.


Click here to view the product manual.

Recommended Supplies and Accessories

2 ¼” x 150′ Paper Rolls  -- Universal premium 15 lb. or 20 lb. single-ply paper rolls for calculators
Monroe M33X Ribbons -- Ribbon cartridge compatible with all Monroe X Series printing calculators
Large Elevation Wedge -- Foam wedge designed to elevate heavy-duty calculators
Calculator Supply Kit -- Starter supplies kit for Monroe calculators with ribbons & paper rolls


WHAT THE EXPERTS SAY: Joe Spurka, Vice President of Operations at Monroe on the 8130X:  


1. What are some of the common jobs that customers use the 8130X for?
The 8130X is the most basic and the most popular of our heavy-duty calculators. The 8130X is used by just about every type of customer that has a heavy workload: supermarkets, casinos, bookkeeping, accounting offices, etc. 

2. What's something people should know about the 8130X? Why should they choose this Monroe printing calculator over another machine?
The 8130X is simple, which is what most customers want. It features a single set of independent memory, a large display, a fast print speed, and an enclosed paper roll.  

3. What’s some positive feedback you have heard from customers about the 8130X?
The 8130X is durable and easy to use. This model has also outlived any other brand of printing calculators that have been used in their offices.

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Warranty Information

Lifetime phone support and 6-month warranty for parts & service.
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Additional Information

Calculator Type:
12-Digit Print/Display
Product Dimensions:
15.30 x 9.50 x 3.70 in
4.08 lbs
Print Speed:
5.0 lines per second
Display Type/Color:
Fluorescent, green
Inking System:
Black/red ribbon cartridge or spools
10 key numeric pad, 00 and decimal point
Decimal Settings:
=, F, 0, 1, 2, 3, 4, 6
Non-Add/Date Function:
Yes, print entered reference number or date
Single set of independent memory
115Volts - 0.2Amps - 60HZ
Truncate, 5/4 Round Off, Round Up
Yes, automatic
Yes, with %+ and %- capability
Yes, (1) with %+ and %- capability
Grand Total:
Yes, group and grand total
Item Count:
Yes, intelligent item count, automatic averaging
Percent Change:
Yes, computes amount and % of change
Square Root:
Yes, entry followed by divide then equals
Change Sign:
Yes, changes the sign of an entered amount
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10 Reviews

  • 5

    Posted by Rhea Boepple on Nov 22, 2022

    Received in a flash and in perfect condition. I retired 10 years ago and always used Monroe calculators at my office. I wanted a new model for home use and am quite pleased with the 8130. So far it has lived up to my expectations!

  • 5
    50+ year Monroe...

    Posted by John Moseley on Oct 17, 2022

    Great machine, user manual needs work. It took over an extra week and a replacement machine to figure paper feeds in TOP of printer, not in rear as manual illustrates and describes. Much older machines fed paper into rear so why not follow instructions as written? Boy, was I red-faced!!

  • 5
    Monroe 8130X

    Posted by Monroe Customer on Mar 03, 2022

    Reliable calculator as always. The transition from a 7130 to the 8130X was seamless.

  • 5
    Best Calculator

    Posted by Monroe Customer on Feb 17, 2022

    I've worked in the accounting field for over 30 years. Started with a Monroe calculator and will never switch. By far, the best machine on the market.

  • 5
    Monroe 8130X

    Posted by Leland Waggoner on Feb 15, 2021

    I have been using Monroe calculators for over forty years. They are absolutely the best on the market in my opinion.

  • 4

    Posted by Buie Norman on Feb 01, 2021


  • 5
    Monroe Calculator

    Posted by Monroe Customer on Dec 31, 2020

    Monroe is always my calculator of choice.

  • 5
    Monroe 8130X

    Posted by Vickey on Nov 12, 2020

    Just got my new 8130X - they are the work horse of the office I've been using them for almost 37 years - wouldn't think of using anything else. Reliable and easy and a good value for the money!

  • 5
    A workhorse

    Posted by Larry on Aug 13, 2020

    I just purchased this model after having my last Monroe for over 15 years. This is noticeably better than my previous Monroe. I’m glad to know that you guys are still producing the best calculator products out there

  • 5

    Posted by Bill on Sep 28, 2018

    The 8130X has a great touch and feel to it. We have all Monroe's throughout our office.

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