How much is 10 in numbers

Metric Numbers(See also Metric/Imperial Conversion Charts and Unit Converter)What is kilo, mega, giga, tera ... ?In the Metric System there are standard ways to talk about big and

How much is 10 in numbers

Metric Numbers

(See also Metric/Imperial Conversion Charts and Unit Converter)

What is kilo, mega, giga, tera ... ?

In the Metric System there are standard ways to talk about big and small numbers:

  • "kilo" for a thousand,
  • "mega" for a million,
  • and more ...
long rope

Example: A long rope measures one thousand meters

It is easier to say it is 1 kilometer long,

and even easier to write it down as 1 km.

So we used kilo in front of the word meter to make "kilometer".

And the abbreviation is "km" (k for kilo and m for meter, put together).

Some more examples:

Example: You put your bag on a set of scales and it shows 2000 grams, we can call that 2 kilograms, or simply 2 kg.

Teaspoonful

Example: Teaspoon

A teaspoon holds 5 thousandths of a liter (51000 of a liter), but it is better to say "5 milliliters", or write it simply as 5 mL.

"kilo", "mega", "milli" etc are called "prefixes":

Prefix: a word part that can be added to the beginning of another word to create a new word

So, using the prefix "milli" in front of "liter" creates a new word "milliliter".

Here we list the prefix for commonly used big and small numbers:

Common Big and Small NumbersNameThe NumberPrefixSymboltrillion1,000,000,000,000teraTbillion1,000,000,000gigaGmillion1,000,000megaMthousand1,000kilokhundred100hectohten10dekadaunit1tenth0.1decidhundredth0.01centicthousandth0.001millimmillionth0.000 001microµbillionth0.000 000 001nanontrillionth0.000 000 000 001picop

Just remember for large values (each one a thousand times bigger):

"kilo mega giga tera"

and for small values (each one a thousand times smaller):

"milli micro nano pico"

Try To Do Some Yourself!

  • How do you refer to a million liters?
  • How about one billionth of a meter?

See the bottom of this page for more questions to challenge yourself ...

How Big Are They?

There is a lot of difference between them. Think in terms of time:A million seconds is about 12 days
A billion seconds is about 32 years

A longer list:

  • A thousand seconds is about a quarter of an hour
  • A million seconds is about 12 days
  • A billion seconds is about 32 years, almost half a lifetime
  • A trillion seconds is about 32,000 years (the last Ice Age finished 12,000 years ago)

Much Bigger and Smaller

There are also prefixes for much bigger and smaller numbers:

Some Very Big, and Very Small NumbersNameThe NumberPrefixSymbol
Very Big !septillion1,000,000,000,000,000,000,000,000yottaYsextillion1,000,000,000,000,000,000,000zettaZquintillion1,000,000,000,000,000,000exaEquadrillion1,000,000,000,000,000petaPVery Small !quadrillionth0.000 000 000 000 001femtofquintillionth0.000 000 000 000 000 001attoasextillionth0.000 000 000 000 000 000 001zeptozseptillionth0.000 000 000 000 000 000 000 001yoctoy

length continuum thumb

Also see
Lengths From Very Small
to Very Large

All Big Numbers We KnowNameAs a Power of 10As a DecimalThousand1031,000Million1061,000,000Billion1091,000,000,000Trillion10121,000,000,000,000Quadrillion1015etc ...Quintillion1018
Sextillion1021
Septillion1024
Octillion1027
Nonillion1030
Decillion1033
Undecillion1036
Duodecillion1039
Tredecillion1042
Quattuordecillion1045
Quindecillion1048
Sexdecillion1051
Septemdecillion1054
Octodecillion1057
Novemdecillion1060
Vigintillion10631 followed by 63 zeros!

And a Googol is 1 followed by one hundred zeros (10100) :

10,000,000,000,000,000,000,000,000,000,000,000,
000,000,000,000,000,000,000,000,000,000,000,
000,000,000,000,000,000,000,000,000,000,000

Then there is the Googolplex. It is 1 followed by Googol zeros. I can't even write down the number, because there is not enough matter in the universe to form all the zeros:

10,000,000,000,000,000,000,000,000,000,000, ... (Googol number of Zeros)

And a Googolplexian is a 1 followed by Googolplex zeros. Wow.

All Small Numbers We KnowNameAs a Power of 10As a Decimalthousandths10-30.001millionths10-60.000 001billionths10-90.000 000 001trillionths10-12etc ...quadrillionths10-15quintillionths10-18sextillionths10-21septillionths10-24octillionths10-27nonillionths10-30decillionths10-33undecillionths10-36duodecillionths10-39tredecillionths10-42quattuordecillionths10-45quindecillionths10-48sexdecillionths10-51septemdecillionths10-54octodecillionths10-57novemdecillionths10-60vigintillionths10-63

5627,5632,1927,1928,1929,1930,3473,3474,3475,3476Decimals Ordering Decimals Powers of 10 Doubling Paper Rounding Numbers Unit Converter

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