Author: Brady Gavin / Source: How-To Geek
The built-in Windows calculator has come a long way since first being introduced with Windows 1.0 in 1985. It includes different modes, date calculations, and some handy everyday conversions functions. Here’s how you can get the most out of the often overlooked calculator app.
Switching Between Calculator Modes
As you’ll see below, the Calculator does a lot more than add, subtract, multiply, and divide. You can choose from four modes, depending on your needs.
To switch between modes, click the menu button at the top left and then select a mode from the options below.
Here’s what those different modes do.
Standard Mode
The Standard mode is useful for basic math operations like adding, subtracting, multiplying, and dividing, as well as for finding square roots, calculating percentages, and working with fractions. This is probably the mode that most people will feel comfortable with most of the time.
Scientific Mode
Scientific mode expands on the Standard mode, giving you the additional functions you’d find on a typical scientific calculator. In addition to the Standard mode operators, it contains functions like log, modulo, exponent, trigonometric degrees, and SIN, COS, and TAN.
Programmer Mode
This mode is designed for programmers. It adds the ability to switch between different number systems—binary, decimal, hexadecimal, and octal. It also adds new operations for working with logic gates—Or, And, Xor, and Not—and bit shifting—Lsh, Rsh, RoR, and RoL.
Also, Programmer mode lets you switch between Byte (8 bits), Word (16 bits), DWord (32 bits), and QWord (64 bits) and has an option for binary bit toggling.
Date Calculation Mode
The Date Calculation mode is a handy little tool that lets you calculate the difference between two specific dates. This is perfect for figuring out things like how many days old you are or how many days it is until your next vacation.
All you have to do is select the start and end date, and the calculator will determine the months, weeks, and days between the two.
Converting Measurements
Ever come across a recipe and it calls for milliliters when you want fluid ounces or been shopping online, and all the prices are in Euros? Well, the calculator has you covered for those and quite a few more everyday conversions you might encounter. Some other conversions include temperature, speed (mph to km/h, knots, or Mach), weight and mass, and data storage, to name just a few.
Click the menu button and select a type of conversion from the list in the “Converter” section.
Click the first measurement—this will be the input—and select a unit from the list…
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