Current version is 2.7

Download Precise Calculator 64-bit (269 kB) - recommended

Download Precise Calculator 32-bit (205 kB) - for older Windows versions

Download command-line calculator (108 kB) - for automated batch scripts

System requirements:

• Intel or AMD processor
• Microsoft Windows operating system (tested on Windows 98/ME/2000/XP/Vista/7/8/10/11)

Installation:

1. Extract ALL files from the ZIP archive. There are many apps for working with ZIP files, for example 7-zip. Some archivers allow to double-click EXE file inside the ZIP and run it from a temporary folder, but it doesn't work.
2. Right-click the EXE file and choose Create shortcut. Then move this shortcut to the desktop.
3. Drag & drop the EXE file to the taskbar which is at the bottom of the screen.

Benefits of the 64-bit version:

• Fractions can have larger numerator and denominator. For example, expression (123456 * 12345678 / 3087105371) returns 493.714285714 in Precise Calculator 32-bit, but it returns 3456 / 7 in Precise Calculator 64-bit.
• Precise Calculator 32-bit cannot display numbers greater than 4E+20686623764, but Precise Calculator 64-bit maximum is 1E+9223372036854774730
• 64-bit version is much faster especially if you need precision greater than 1000 digits