Price: GBP7.34 - GBP6.61
(as of May 12, 2026 03:55:39 UTC – Details)

Product description

Mr. Pen Calculators

Add to Cart

Add to Cart

Add to Cart

Add to Cart

Add to Cart

Customer Reviews

4.5 out of 5 stars 3,121

4.3 out of 5 stars 212

4.4 out of 5 stars 1,040

4.3 out of 5 stars 2,544

4.4 out of 5 stars 766

Price

GBP 6.61GBP6.61

GBP 5.03GBP5.03

GBP 4.40GBP4.40

GBP 5.14GBP5.14

GBP 4.30GBP4.30

Theme Color

Pink

Blue

Pastel Green

Classic Black

Classic Black

Type

Basic Desktop

Basic Desktop

Basic Desktop

Scientific

Scientific

Digits Display

12 Digits

10 Digits

12 Digits

10 + 2 Digits

10 + 2 Digits

Power Source

Battery

Battery

Solar + Battery

Battery

Solar + Battery

Functions

Basic Math

Basic Math

Basic Math

Algebra, Trig, Stats

Algebra, Trig, Stats

Mr. Pen 12-digit calculator is perfect for completing basic numerical calculations, making it ideal for office, primary school, market, or even home use. It features big, sensitive keys that are easy to press down and offer quick data entry.
The mechanical switch buttons offer a responsive and satisfying click with each press, similar to a mechanical keyboard, improving the overall user experience and precision of data entry. Equipped with essential functions like memory recall, percentage calculation, and more, it meets a variety of computational needs.
Mr. Pen calculator is portable and small in size at 6.2 x 4.4 inches, so it doesn’t take up much desk space but is still comfortably sized for easy usage. It also has a large 12-digit display, increasing its visibility from any angle.
Operating on just one AAA battery (not included), this calculator is designed with an automatic shutdown feature that activates after 10 minutes of inactivity, conserving battery life and ensuring longevity.
Mr. Pen calculator is the perfect tool for quickly dealing with everyday calculation problems in various settings such as schools, offices, or even at home! It offers a fast, efficient, and user-friendly experience that makes it an ideal choice for anyone looking for a reliable calculator.