Convert Giga to Peta

Giga (G) 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 G = 1E-06 P

1 Giga = 1E-06 Peta

1 Peta = 1000000 Giga

1 G in every supported prefix

Conversion chart: Giga to Peta

Conversion table

Giga (G)	Peta (P)
0.01 G	1E-08 P
0.1 G	1E-07 P
1 G	1E-06 P
2 G	2E-06 P
3 G	3E-06 P
5 G	5E-06 P
10 G	1E-05 P
20 G	2E-05 P
50 G	5E-05 P
100 G	0.0001 P
1000 G	0.001 P

Giga (G)

Definition: An SI prefix denoting a factor of 10⁹ — a billion times the base unit.

History: Adopted by the CGPM in 1960, giving science and engineering a standard name for the billion-scale quantities that were becoming common in physics and electronics.

Current use: Everywhere in modern technology — gigabytes of storage, gigahertz processor clock speeds, and gigawatts of power-plant output.

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 Giga → Peta: multiply by 1E-06. For example, 1 G × 1E-06 = 1E-06 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 G equals 1E-06 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 Giga?

1 Giga (G) equals exactly 1E-06 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 Giga to Other Prefixes

Possible Prefix Conversions

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