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Convert None (base unit) to Pico

None (base unit) (—) 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.

The numeric value you want to convert. Decimals are accepted.

Result

1 — = 1E+12 p

1 None (base unit) = 1E+12 Pico

1 Pico = 1E-12 None (base unit)

1 — in every supported prefix

Conversion chart: None (base unit) to Pico

Conversion table

None (base unit) (—) Pico (p)
0.01 — 1E+10 p
0.1 — 1E+11 p
1 — 1E+12 p
2 — 2E+12 p
3 — 3E+12 p
5 — 5E+12 p
10 — 1E+13 p
20 — 2E+13 p
50 — 5E+13 p
100 — 1E+14 p
1000 — 1E+15 p

None (base unit) (—)

Definition: The unprefixed base value — a multiplier of exactly 1, representing a quantity with no SI prefix attached at all (e.g. a plain gram, meter, or watt rather than a kilogram, kilometer, or milliwatt).

History: This isn't a historical unit in its own right — it's simply the reference point the entire SI prefix ladder is built around, against which every prefix above and below is defined as a power of ten.

Current use: Used as the baseline whenever a quantity is expressed without any prefix, and as the anchor point for converting any other prefix on this page to any other.

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 None (base unit) → Pico: multiply by 1E+12. For example, 1 — × 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 — 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 Pico are in 1 None (base unit)?

1 None (base unit) (—) equals exactly 1E+12 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 None (base unit) to Other Prefixes

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

Possible Prefix Conversions

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

See also