Convert Kilo to Peta

Kilo (k) to Peta (P) SI prefix conversion — enter any value below to get an instant result, or use the table for common values.

Results from this calculator are estimates provided for general informational purposes only, based on formulas, rates, and standards commonly accepted as of 2026. Figures may differ slightly from other calculators or professional sources due to rounding methods, differing assumptions, or regional regulations, and rules may change over time. Always consult a qualified professional — such as a financial advisor, healthcare provider, or other relevant specialist — before making decisions based on these results.

Value

From

Result

1 k = 1E-12 P

1 Kilo = 1E-12 Peta

1 Peta = 1E+12 Kilo

1 k in every supported prefix

Conversion chart: Kilo to Peta

Conversion table

Kilo (k)	Peta (P)
0.01 k	1E-14 P
0.1 k	1E-13 P
1 k	1E-12 P
2 k	2E-12 P
3 k	3E-12 P
5 k	5E-12 P
10 k	1E-11 P
20 k	2E-11 P
50 k	5E-11 P
100 k	1E-10 P
1000 k	1E-09 P

Kilo (k)

Definition: An SI prefix denoting a factor of 10³ — one thousand times the base unit.

History: One of the original six metric prefixes adopted by the French Academy of Sciences in 1795, alongside hecto-, deka-, deci-, centi-, and milli-.

Current use: The most familiar SI prefix in daily life — kilograms, kilometers, and kilowatts are all in routine common use worldwide.

Peta (P)

Definition: An SI prefix denoting a factor of 10¹⁵ — a quadrillion times the base unit.

History: Adopted by the CGPM in 1975 as part of the same extension that introduced exa-, tera having already proven insufficient for emerging large-scale scientific quantities.

Current use: Widely used in computing (petabytes of storage, petaflops of processing power) and in physics for large energy and frequency quantities.

Supported Units

Prefix	Symbol	Multiplier (× base)
Yotta	Y	1E+24
Zetta	Z	1E+21
Exa	E	1E+18
Peta	P	1E+15
Tera	T	1E+12
Giga	G	1E+09
Mega	M	1000000
Kilo	k	1000
Hecto	h	100
Deka	da	10
None (base unit)	—	1
Deci	d	0.1
Centi	c	0.01
Milli	m	0.001
Micro	µ	1E-06
Nano	n	1E-09
Pico	p	1E-12
Femto	f	1E-15
Atto	a	1E-18
Zepto	z	1E-21
Yocto	y	1E-24

About These Parameters

Value: The number of "From" prefix units you want to re-express in the "To" prefix. Since prefixes are just multiplier scales, this value can represent anything from a physical quantity's leading digits to a plain abstract number.
From Unit: The SI prefix your value is currently scaled by — for example, the "kilo" in "kilogram" or the "nano" in "nanosecond," entered here without the base unit attached.
To Unit: The SI prefix you want the value re-expressed in. Use the swap button to flip From and To instantly, handy when converting a datasheet figure from one prefix scale to another.

How Prefix Conversion Works

The Formula

Every SI prefix is defined by a fixed power-of-ten multiplier relative to the unprefixed base value. To convert a value from one prefix scale to another:

result = value × (multiplier of "From" prefix ÷ multiplier of "To" prefix)

For Kilo → Peta: multiply by 1E-12. For example, 1 k × 1E-12 = 1E-12 P.

A History of Powers of Ten

The original six metric prefixes — kilo, hecto, deka, deci, centi, milli — were adopted by the French Academy of Sciences in 1795 alongside the metric system itself. As science and industry needed to describe ever-larger and ever-smaller quantities, the CGPM (Conférence Générale des Poids et Mesures) extended the table repeatedly: mega and micro in 1960 when the modern SI was formalized, giga and nano the same year, tera and pico following soon after, then peta/femto (1975), exa/atto (1975), and finally zetta/zepto and yotta/yocto in 1991 — the classical range covered on this page. In 2022 the CGPM went further still, adding ronna/ronto and quetta/quecto to keep pace with data-storage and astrophysical quantities that had begun to outgrow even yotta.

Why a Prefix-Only Converter Is Useful

Every other unit converter on this site attaches these same prefixes to one specific base unit — grams, watts, bytes, farads — because that's how the prefix is actually used in practice. But the underlying math of "how much bigger is giga than mega" never changes no matter which unit it's modifying, so it's often faster to reason about the prefix scale on its own: quickly checking that a "giga" figure is a billion and not a million, or converting a "nano" measurement from one datasheet into the "micro" scale used by a different one, without needing to know or care what physical quantity either figure describes.

Example

1 k equals 1E-12 P. Whatever base unit these prefixes are actually attached to — grams, bytes, watts, seconds — the same multiplier ratio applies: 1 kilo- is always 1,000 times 1 (unprefixed), and 1 mega- is always 1,000 times 1 kilo-, regardless of the quantity being measured.

Frequently Asked Questions

How many Peta are in 1 Kilo?

1 Kilo (k) equals exactly 1E-12 Peta (P).

Is giga a billion or a million?

Giga is always a billion (10⁹) times the base unit — a common point of confusion is with "mega," which is a million (10⁶). The two are frequently mixed up in casual conversation about data storage and computing speed, which is exactly the kind of mistake this converter is designed to catch.

Does this converter work for any unit, like grams or bytes?

Yes — this converter deliberately ignores the underlying unit and works purely with the multiplier scale. "1 kilo- to mega-" gives the same ratio (0.001) whether you mentally attach it to grams, watts, bytes, or any other quantity, because the prefix's multiplier is independent of what it's modifying.

What does "None (base unit)" mean in the unit list?

"None (base unit)" represents a value with no prefix attached at all — a plain gram, meter, or watt rather than a kilogram, kilometer, or milliwatt. It's included so you can convert directly between an unprefixed value and any prefixed scale, such as figuring out how many kilo- units equal one plain (unprefixed) unit.

Are ronna, ronto, quetta, and quecto included here?

Not yet — this page covers the classical SI prefix range from yotta (10²⁴) down to yocto (10⁻²⁴), which was complete from 1991 until 2022. The newer 2022 additions (ronna/ronna-, quetta/quecto) sit beyond even yotta and yocto and aren't included in this table.

Convert Kilo to Other Prefixes

Possible Prefix Conversions

Mega to Peta Exa to Yotta Zepto to None (base unit) Giga to Kilo Micro to Milli Atto to Femto Atto to Pico Yotta to Zepto Zepto to Tera Yotta to Peta Zepto to Pico Hecto to None (base unit) Hecto to Centi Micro to None (base unit) Hecto to Femto Giga to None (base unit) Tera to Hecto Tera to Zepto None (base unit) to Exa None (base unit) to Mega Zepto to Zetta Kilo to None (base unit) Nano to Deka Nano to Deci Nano to Pico Zepto to Deka Hecto to Atto Atto to Hecto Atto to Milli Yotta to Deci Mega to Yotta Centi to Exa Deka to Yotta Kilo to Atto Peta to Giga Nano to Giga Centi to Tera Deci to Zepto Femto to Centi Yocto to Exa Milli to Hecto Centi to Micro Milli to Micro Zepto to Giga Micro to Kilo Milli to Giga None (base unit) to Deka Kilo to Giga Pico to Kilo Hecto to Micro Hecto to Zetta Hecto to Deka Zetta to None (base unit) Micro to Zepto Zetta to Tera Centi to Pico Nano to Exa Pico to Nano Giga to Femto Micro to Femto Yocto to Giga Deci to Femto Yocto to Tera Pico to Zetta Yocto to Mega Deci to Zetta Peta to Mega Deka to Zetta Atto to Deci Giga to Milli Hecto to Exa None (base unit) to Atto None (base unit) to Yocto Yocto to Atto Nano to Kilo Deka to Milli Centi to Yocto Mega to Kilo Tera to Deka Centi to Atto None (base unit) to Zetta Femto to Deka Tera to Micro Exa to Peta Exa to Tera Atto to Micro Hecto to Pico None (base unit) to Yotta Centi to Zepto Tera to None (base unit) Milli to Deci Kilo to Tera Peta to Micro None (base unit) to Milli Tera to Yocto Tera to Deci Mega to Yocto Exa to Micro Centi to Deka Zepto to Exa Giga to Pico Zetta to Milli Zepto to Centi Micro to Yotta Mega to Deci Mega to Tera Atto to Deka Deci to Tera Centi to Femto Milli to Kilo Kilo to Centi None (base unit) to Kilo None (base unit) to Pico Hecto to Tera Tera to Exa Giga to Nano Hecto to Kilo Nano to None (base unit) Deci to Kilo Mega to Deka Deci to Deka Centi to Giga Exa to Milli Yotta to Atto Peta to Centi Deka to Deci Atto to None (base unit) Kilo to Micro Zetta to Peta Nano to Zetta Kilo to Femto Giga to Zetta Pico to Hecto Yotta to Pico Exa to Zetta Micro to Tera Zepto to Nano Exa to Mega Exa to Giga Deka to Micro Tera to Pico Peta to Zepto Milli to Nano Zepto to Peta Mega to Giga Atto to Nano Mega to Micro Atto to Zetta Micro to Atto Deka to Yocto Kilo to Pico Yocto to Zetta Kilo to Exa Femto to None (base unit) Pico to Yotta Mega to Pico Giga to Exa Yocto to Micro Yotta to Micro Zetta to Hecto Kilo to Yotta Pico to Atto Hecto to Peta Yocto to Pico Yotta to Hecto Femto to Deci Zetta to Mega Micro to Hecto Peta to Exa Kilo to Nano Yocto to Zepto Pico to Deci Tera to Zetta Zetta to Deka Yotta to Nano Zetta to Giga Kilo to Deci Hecto to Milli Nano to Femto Deka to Zepto Tera to Nano Zepto to Atto Yocto to Peta Yocto to None (base unit) Milli to Mega Kilo to Deka Giga to Zepto Hecto to Nano None (base unit) to Nano Centi to Hecto Peta to Yotta Deci to Yotta Peta to Yocto Deka to Peta Yocto to Kilo Giga to Yotta Atto to Yotta Yotta to Deka Centi to Mega Hecto to Mega Zepto to Yotta Yocto to Femto Yocto to Deci Femto to Milli Milli to Deka Deci to Micro Atto to Tera Deka to Exa Femto to Mega Deci to Yocto Milli to Peta Giga to Atto Yotta to Giga Atto to Yocto Peta to Milli Deka to Atto None (base unit) to Peta Nano to Milli Zetta to Kilo Hecto to Yocto Deci to None (base unit) Peta to Femto Hecto to Deci Pico to Zepto Mega to Hecto Peta to Hecto Peta to Tera Exa to Zepto Milli to Tera Yotta to Zetta None (base unit) to Centi Giga to Centi Zetta to Exa Deka to Giga Deka to Femto Nano to Centi Femto to Zepto Pico to Femto Zetta to Centi None (base unit) to Tera Milli to Yotta Yotta to None (base unit) Micro to Deci Mega to Milli Yocto to Yotta Micro to Centi Centi to Nano Tera to Kilo Pico to Exa Pico to None (base unit) Femto to Hecto Atto to Kilo Mega to None (base unit) Micro to Pico Mega to Exa Yotta to Femto Exa to Kilo Deka to Nano Giga to Micro Milli to Yocto Peta to Deka Micro to Yocto Deci to Peta Giga to Deci Zetta to Micro Kilo to Hecto Zepto to Milli Atto to Exa Yotta to Milli Zetta to Zepto Hecto to Yotta Pico to Tera Nano to Micro Yotta to Yocto Giga to Yocto Deka to Tera Centi to None (base unit) Tera to Peta Yotta to Centi Centi to Yotta Yocto to Nano Deci to Milli Exa to None (base unit) Giga to Tera Femto to Pico Micro to Giga Nano to Yocto Femto to Giga Centi to Zetta Exa to Yocto Micro to Deka Pico to Peta Femto to Nano Pico to Micro Nano to Tera Zepto to Femto Milli to Zepto Kilo to Yocto Femto to Kilo Yocto to Centi Micro to Mega None (base unit) to Zepto Femto to Tera Nano to Atto Mega to Atto Zetta to Pico Deka to Centi Zetta to Atto Hecto to Zepto Micro to Zetta Exa to Centi Tera to Atto Yotta to Tera Centi to Milli Pico to Yocto Zepto to Hecto Peta to Atto Milli to Femto Yocto to Hecto Deci to Nano None (base unit) to Micro Deka to Pico Pico to Mega Giga to Peta Femto to Exa Nano to Zepto Micro to Exa Zepto to Deci Deci to Exa Peta to None (base unit) Kilo to Mega None (base unit) to Giga Zepto to Kilo Femto to Zetta Deka to None (base unit) Deci to Atto Exa to Hecto None (base unit) to Deci Yocto to Deka Mega to Zepto Exa to Pico Mega to Centi Pico to Deka Giga to Deka Pico to Milli None (base unit) to Hecto Mega to Femto Exa to Nano Peta to Zetta Milli to Centi Exa to Femto Giga to Mega Yotta to Kilo Atto to Peta Tera to Mega Zetta to Yocto Deka to Mega Tera to Yotta Peta to Kilo Deci to Mega Deci to Giga Yocto to Milli Kilo to Milli Centi to Deci Yotta to Exa Peta to Pico Deka to Kilo Femto to Yocto Zepto to Micro Tera to Milli Giga to Hecto Yotta to Mega Zetta to Yotta Mega to Nano Atto to Zepto Femto to Micro Milli to Exa Nano to Peta Deci to Pico Nano to Yotta Zepto to Mega Tera to Giga Peta to Nano Exa to Atto Deci to Centi Milli to None (base unit) Zetta to Deci Atto to Giga Zetta to Nano Exa to Deka Milli to Zetta Kilo to Zepto None (base unit) to Femto Exa to Deci Deka to Hecto Nano to Mega Zepto to Yocto Femto to Atto Pico to Centi Milli to Pico Micro to Nano Centi to Peta Zetta to Femto Atto to Mega Kilo to Zetta Deci to Hecto Mega to Zetta Peta to Deci Tera to Femto Centi to Kilo Nano to Hecto Femto to Peta Kilo to Peta Femto to Yotta Pico to Giga Milli to Atto Tera to Centi Hecto to Giga Atto to Centi Micro to Peta