Convert Pico to Yocto

Pico (p) to Yocto (y) 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+12 y

1 Pico = 1E+12 Yocto

1 Yocto = 1E-12 Pico

1 p in every supported prefix

Conversion chart: Pico to Yocto

Conversion table

Pico (p)	Yocto (y)
0.01 p	1E+10 y
0.1 p	1E+11 y
1 p	1E+12 y
2 p	2E+12 y
3 p	3E+12 y
5 p	5E+12 y
10 p	1E+13 y
20 p	2E+13 y
50 p	5E+13 y
100 p	1E+14 y
1000 p	1E+15 y

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.

Yocto (y)

Definition: An SI prefix denoting a factor of 10⁻²⁴ — one septillionth of the base unit, the smallest of the classical SI prefixes.

History: Adopted by the CGPM in 1991 alongside yotta-, giving the SI a matched pair of prefixes at the extreme large and small ends of the scale.

Current use: Used almost exclusively in physics and chemistry to express the mass of individual subatomic particles and atoms in SI-coherent units.

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 → Yocto: multiply by 1E+12. For example, 1 p × 1E+12 = 1E+12 y.

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+12 y. 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 Yocto are in 1 Pico?

1 Pico (p) equals exactly 1E+12 Yocto (y).

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

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