Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

This is an AMP page - Open full page! for all features.

Decimal System Prefixes

Sponsored Links

Decimal multiples of units:

PrefixMeasureDecimal equivalentExponential
expression
y - yocto   0.000 000 000 000 000 000 000 001 E-24
z - zepto   0.000 000 000 000 000 000 001 E-21
a - atto one-quintillionth 0.000 000 000 000 000 001 E-18
f - femto one-quadrillionth 0.000 000 000 000 001 E-15
p - pico one-trillionth 0.000 000 000 001 E-12
n - nano one-billionth 0.000 000 001 E-9
μ - micro one-millionth 0.000 001 E-6
m - milli one-thousandth 0.001 E-3
c - centi one-hundredth 0.01 E-2
d - deci one-tenth 0.1 E-1
Uni one 1 E0
d - deka ten 10 E1
h - hecto one hundred 100 E2
k - kilo one thousand 1 000 E3
M - mega one million 1 000 000 E6
G - giga one billion 1 000 000 000 E9
T - tera one trillion 1 000 000 000 000 E12
P - peta   1 000 000 000 000 000 E15
E - exa   1 000 000 000 000 000 000 E18
Z - zetta   1 000 000 000 000 000 000 000 E21
Y - yotta   1 000 000 000 000 000 000 000 000 E24

Prefixes used in the SI system.

Sponsored Links

Related Topics

• Basics

The SI-system, unit converters, physical constants, drawing scales and more.

• Mathematics

Mathematical rules and laws - numbers, areas, volumes, exponents, trigonometric functions and more.

Related Documents

Binary Adding, Subtraction, Multiplicaton and Division

Adding, subtracting, multiplying and dividing binary numbers.

Binary, Octal and Hexadecimal Numbers

Decimal, binary, octal and hexadecimal numbers.

British Imperial System

A principal system of units.

Complex Numbers

Complex numbers are used in alternating current theory and mechanical vector analysis.

Designation of Large Numbers

Designation of large number in US vs. other countries.

Exponents - Powers and Roots

The laws of fractional and integer exponents.

Factorials

The product of all positive integers.

Laws of Indices

Simplifying calculations by involving indices.

Numbers - Square, Cube, Square Root and Cubic Root Calculator

Calculate square, cube, square root and cubic root. Values tabulated for numbers ranging 1 to 100.

Numbers - Standard Form, Scientific and Engineering Notation

The difference between standard, scientific and engineering number notation.

Prefixes for Binary Multiplies

IEC International Standard names and symbols

SI System

An introduction to the SI metric system.

Symbols Used to Denote a Chemical Reactions and Process or Condition

Explanation of symbols used as subscripts or superscripts to tell more about the type of chemical reaction, process or condition.

Sponsored Links

Search Engineering ToolBox

  • the most efficient way to navigate the Engineering ToolBox!

SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!

Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.