10 Best Adding Machine 2025 in the United States

The Sharp EL-1801V Ink Printing Calculator is a solid choice if you're looking for an efficient and user-friendly adding machine. One of its standout features is the large 12-digit blue fluorescent display, which makes it easy to read calculations, even in low light conditions. The 2-color ink printer adds a nice touch, allowing you to easily differentiate between positive and negative figures, and it operates at a speed of 2.5 lines per second, which is quite decent for everyday tasks.

Functionality is another strong point. With features like one-touch change calculation, cost/sell/margin keys, and the ability to compute grand totals and averages, it caters well to users who need to perform various calculations quickly and accurately. Additionally, it uses a replaceable ink roller (Victor IR40T), which simplifies maintenance and keeps printing costs low.

However, there are a few drawbacks to consider. The calculator is powered by AC, which means it’s less portable compared to battery-operated options. If you often need to take your calculator on the go, this may not be ideal. Also, while its size (2.5 x 7.6 x 10.1 inches) is manageable for a desktop, it could be considered bulky for some users who prefer compact devices. This calculator is well-suited for office environments, small businesses, or anyone who frequently handles financial calculations and needs a reliable tool for printing receipts or reports. If you value ease of use and clarity in display, this model is a compelling option to consider.

The Casio HR-170RC Plus is a robust desktop printing calculator tailored for those who need both calculating and printing functionalities. It boasts a large 12.9 cm screen, making it easy to read and use. One of its standout features is the Check & Correct function, allowing you to review and correct entries before printing. The After-Print and Re-Print functions add convenience by letting you print corrections or duplicates as needed.

Additionally, its Clock & Calendar function is handy for timestamping your work, and the Cost/Sell/Margin function is perfect for business calculations, showing versatility in its use. With a print speed of 2.0 lines per second, it’s fairly quick for standard tasks but may not suit high-volume needs. The calculator can be powered by batteries or a cord, adding flexibility depending on your workspace requirements.

However, it weighs 1.72 pounds and measures 11.61 x 6.49 x 0.1 inches, making it less portable and more suitable for a fixed desk setup. Some potential drawbacks include its size and weight, which could be cumbersome for those needing a more portable solution. Additionally, while it ranks highly in its category, it might not have the fastest print speed for users needing rapid, high-volume calculations.

The Canon P23-DHV-3 Printing Calculator is a solid choice for anyone looking for a reliable adding machine, especially small business owners or students who need quick calculations for taxes and general business purposes. One of its biggest strengths is the built-in tax and business calculation functionality, which can save users time and reduce errors during financial transactions. The double-check feature is also a nice touch for ensuring accuracy, making it suitable for accounting tasks.

The display type is clear and easy to read, which is essential for quickly verifying calculations. Additionally, the easy paper loading design helps avoid the common frustration of paper jams, enhancing user experience. The built-in clock and calendar features add value, allowing users to keep track of time while working.

The P23-DHV-3 is battery-powered, which might be a drawback for those who prefer a plug-in model that doesn’t require frequent battery changes. Its size and weight are reasonable for portability, yet it may not be the most compact option for users who need to transport it frequently. While it has a good number of features, it doesn't cover advanced functionalities found in more professional-grade calculators, which might limit its appeal to high-level accounting needs.