Convert Exa to Pico

Exa (E) to Pico (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 E = 1E+30 p

1 Exa = 1E+30 Pico

1 Pico = 1E-30 Exa

1 E in every supported prefix

Conversion chart: Exa to Pico

Conversion table

Exa (E)	Pico (p)
0.01 E	1E+28 p
0.1 E	1E+29 p
1 E	1E+30 p
2 E	2E+30 p
3 E	3E+30 p
5 E	5E+30 p
10 E	1E+31 p
20 E	2E+31 p
50 E	5E+31 p
100 E	1E+32 p
1000 E	1E+33 p

Exa (E)

Definition: An SI prefix denoting a factor of 10¹⁸ — a quintillion times the base unit.

History: Adopted by the CGPM in 1975, at a time when the largest practical prefixes needed to keep pace with growing quantities in physics and, later, computing.

Current use: Common in describing large-scale computing performance (exaflops) and total global data storage and traffic figures (exabytes).

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.

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 Exa → Pico: multiply by 1E+30. For example, 1 E × 1E+30 = 1E+30 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 E equals 1E+30 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 Pico are in 1 Exa?

1 Exa (E) equals exactly 1E+30 Pico (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 Exa to Other Prefixes

Possible Prefix Conversions

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