Galculator is desktop scientific calculator software that lets you work in algebraic notation, reverse Polish notation (RPN), or formula-entry mode. It also includes a paper-style calculation list, scientific functions, configurable number bases and angle units. The exact package version can vary by distribution; Debian’s trixie manual, for example, documents version 2.1.4-1.2.
What Galculator does
Galculator is a GTK-based calculator project whose documentation describes support for GTK 2 and GTK 3. It offers basic and scientific calculator modes, with several ways to enter calculations. Debian’s trixie manual page identifies its packaged version as 2.1.4-1.2; a different distribution or release may package another version.
The project documentation describes algebraic notation, RPN, formula entry and paper mode. These are different interaction styles rather than separate claims about calculation accuracy or speed.
Choose an input style
Algebraic notation
Enter an expression in the familiar form, with operators between values. Galculator handles arithmetic precedence, so an expression can be evaluated according to the usual order of operations.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Reverse Polish notation (RPN)
RPN is an alternative entry workflow listed in both the Debian manual and the project documentation. If you already work with a stack-based calculator, you can switch Galculator to RPN rather than entering expressions in algebraic form.
Formula entry
Formula entry accepts expressions directly. The project README says it is “one more step towards a calculator accepting input as written on the paper.” Supported operators include addition, subtraction, multiplication, division, percent, powers, modulo, left and right shifts, and bitwise AND, OR and XOR. Most function arguments need parentheses; documented examples include sin(0.5) and sqrt(3).
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
For non-decimal values in formula entry, the README documents 0x or 0h prefixes for hexadecimal, 0b for binary and 0o for octal.
Paper mode
Paper mode uses formula-entry rules as a lightweight calculation history. Press Return or click the adjacent button to evaluate an expression and add the expression and result to a list. Double-click a listed row to copy its expression back into the entry field. The documented workflow is a history list, not a symbolic-algebra or variable-based notebook.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Scientific functions, number bases and angle units
The Debian manual documents arithmetic with precedence handling, trigonometric functions, powers, square roots, natural and common logarithms, constants including e and π, memory, inverse and hyperbolic functions, and user-defined functions. It also lists four number bases and three angle units:
| Setting | Documented choices |
|---|---|
| Number base | Decimal, hexadecimal, octal, binary |
| Angle unit | Radian, degree, grad |
The project README also documents user-defined functions created in Preferences. A function takes one variable, and user-defined functions can depend on other user-defined functions; this does not make Galculator a general-purpose symbolic algebra system.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Keyboard shortcuts listed by the project
The project’s shortcut page labels its list “current (complete?)”, so a shortcut may differ in a particular build. Check the installed version’s help or menus if one does not work.
| Action | Shortcut listed |
|---|---|
| Algebraic notation | Ctrl+A |
| RPN | Ctrl+N |
| Formula entry | Ctrl+F |
| Decimal | Ctrl+D |
| Hexadecimal | Ctrl+H |
| Octal | Ctrl+O |
| Binary | Ctrl+B |
| Degree | Ctrl+E |
| Radian | Ctrl+R |
| Grad | Ctrl+G |
To switch to RPN, use Ctrl+N according to that list. For formula entry, use Ctrl+F; number-base and angle shortcuts are listed above.
The Tool Desk
Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Is Galculator a fit?
Galculator suits someone who wants desktop calculator software with a choice of algebraic, RPN and expression-based entry, plus scientific functions and selectable bases or angle units. Its paper mode provides a simple way to revisit prior expressions. The documentation cited here does not establish comparative performance rankings or usage statistics, so those are not a sound basis for choosing it.
Galculator is software, not a hardware calculator accessory. A physical RPN calculator is a separate alternative for someone who prefers a dedicated device; an HP manual, for example, describes RPN and algebraic operation, but that does not make such a device necessary to use Galculator.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
