📖 Glossary

500 money, math, and health terms explained in plain English — each with an example and a free calculator.

16 terms found in Everyday Tools. Clear filters

A

Aspect Ratio Aspect ratio is the proportional relationship between the width and height of an image, screen, or video…

B

Binary Number A binary number is a number written in base 2, using only the digits 0 and 1. Each position represents a…

C

Currency Denomination A currency denomination is the face value of a banknote or coin, such as a 20 note or a 25-cent coin…

D

Data Storage Units (KB, MB, GB, TB) Data storage units measure the size of digital information. A byte is 8 bits. In the decimal (SI) system used…

E

Exchange Rate An exchange rate is the price of one currency expressed in another, such as how many euros one US dollar…

H

Hexadecimal Hexadecimal (hex) is a base-16 number system that uses the digits 0–9 and the letters A–F to represent…

I

Internet Speed (Mbps) Mbps (megabits per second) measures data transfer speed, commonly used for internet connections. Because…

K

Kilowatt-Hour (kWh) A kilowatt-hour (kWh) is a unit of energy equal to using 1,000 watts of power for one hour. It is the unit…

M

Metric System The metric system is a decimal-based system of measurement used by most of the world, formalized as the…

P

Password Entropy Password entropy is a measure of how unpredictable a password is, expressed in bits. For a randomly generated…

Q

QR Code A QR (quick response) code is a two-dimensional barcode made of black and white squares that stores…

R

Reading Time Reading time is an estimate of how long it takes to read a text, calculated by dividing its word count by an…

T

Temperature Conversion Temperature conversion changes a temperature from one scale to another. To convert Celsius to Fahrenheit… Title Case Title case is a capitalization style used for titles and headings in which major words are capitalized, while…

U

Unit Conversion Unit conversion is changing a measurement from one unit to another while keeping the same quantity, by… US Customary Units US customary units are the system of measurement commonly used in the United States, including inches, feet…
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Definitions are for general educational purposes only and are not financial, tax, legal, or medical advice.