Convert Pico to Femto

Pico (p) to Femto (f) 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 = 1000 f

1 Pico = 1000 Femto

1 Femto = 0.001 Pico

1 p in every supported prefix

Conversion chart: Pico to Femto

Conversion table

Pico (p)	Femto (f)
0.01 p	10 f
0.1 p	100 f
1 p	1000 f
2 p	2000 f
3 p	3000 f
5 p	5000 f
10 p	10000 f
20 p	20000 f
50 p	50000 f
100 p	100000 f
1000 p	1000000 f

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.

Femto (f)

Definition: An SI prefix denoting a factor of 10⁻¹⁵ — one quadrillionth of the base unit. From the Danish/Norwegian 'femten' (fifteen).

History: Adopted by the CGPM in 1964, one of the first prefixes named after a Scandinavian numeral rather than a Greek or Latin root.

Current use: Used in nuclear and particle physics (femtometers describe the scale of atomic nuclei) and ultrafast laser physics (femtosecond pulses).

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 → Femto: multiply by 1000. For example, 1 p × 1000 = 1000 f.

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 1000 f. 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 Femto are in 1 Pico?

1 Pico (p) equals exactly 1000 Femto (f).

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

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