Convert Pico to Peta

Pico (p) 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 p = 1E-27 P

1 Pico = 1E-27 Peta

1 Peta = 1E+27 Pico

1 p in every supported prefix

Conversion chart: Pico to Peta

Conversion table

Pico (p)	Peta (P)
0.01 p	1E-29 P
0.1 p	1E-28 P
1 p	1E-27 P
2 p	2E-27 P
3 p	3E-27 P
5 p	5E-27 P
10 p	1E-26 P
20 p	2E-26 P
50 p	5E-26 P
100 p	1E-25 P
1000 p	1E-24 P

Pico (p)

Definition: An SI prefix denoting a factor of 10⁻¹² — one trillionth of the base unit.

History: Adopted by the CGPM in 1960 alongside nano-, extending the SI's small-scale prefixes as electronics and physics needed to describe ever-tinier quantities.

Current use: Common in electronics (picofarads for small capacitors) and in describing extremely short time intervals (picoseconds) in laser and telecommunications research.

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 Pico → Peta: multiply by 1E-27. For example, 1 p × 1E-27 = 1E-27 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 p equals 1E-27 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 Pico?

1 Pico (p) equals exactly 1E-27 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 Pico to Other Prefixes

Possible Prefix Conversions

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