Unit converter

Metric Prefixes converter

Convert SI-prefixed values from nano and micro through giga and tera.

Enter a value and choose units. Results update instantly.

1 m = 1,000 μ

All Metric Prefixes units

From 1 m
UnitValue
Nano n 1,000,000
Micro μ 1,000
Milli m 1
Centi c 0.1
Deci d 0.01
No prefix 1 0.001
Deca da 0.0001
Hecto h 0.00001
Kilo k 0.000001
Mega M 0.000000001
Giga G 1e-12
Tera T 1e-15
Peta P 1e-18
Exa E 1e-21
Recent conversions
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Common tasks

Milli to Microm to μ Kilo to No prefixk to 1 Mega to KiloM to k Giga to MegaG to M Nano to Micron to μ Tera to GigaT to G

Reference

How metric prefixes conversion works

SI prefixes scale a unit by an exact power of ten. Prefix symbols are case-sensitive: m means milli while M means mega.

Values are converted to no prefix first, then from that reference into the requested unit. Keeping a single documented reference reduces inconsistent pair-by-pair constants.

Accuracy note: Every listed prefix is an exact decimal power. Binary prefixes such as Ki and Mi belong to the IEC system.

Unit reference

UnitSymbol1 unit in 1
Nanon0.000000001
Microμ0.000001
Millim0.001
Centic0.01
Decid0.1
No prefix11
Decada10
Hectoh100
Kilok1,000
MegaM1,000,000
GigaG1,000,000,000
TeraT1e12
PetaP1e15
ExaE1e18

Long-tail directory

Every indexed conversion

Choose a source unit to see all available destinations.

From Nano (n)
Nano to MicroNano to MilliNano to No prefixNano to KiloNano to MegaNano to GigaNano to Tera
From Micro (μ)
Micro to NanoMicro to MilliMicro to No prefixMicro to KiloMicro to MegaMicro to GigaMicro to Tera
From Milli (m)
Milli to NanoMilli to MicroMilli to No prefixMilli to KiloMilli to MegaMilli to GigaMilli to Tera
From No prefix (1)
No prefix to NanoNo prefix to MicroNo prefix to MilliNo prefix to KiloNo prefix to MegaNo prefix to GigaNo prefix to Tera
From Kilo (k)
Kilo to NanoKilo to MicroKilo to MilliKilo to No prefixKilo to MegaKilo to GigaKilo to Tera
From Mega (M)
Mega to NanoMega to MicroMega to MilliMega to No prefixMega to KiloMega to GigaMega to Tera
From Giga (G)
Giga to NanoGiga to MicroGiga to MilliGiga to No prefixGiga to KiloGiga to MegaGiga to Tera
From Tera (T)
Tera to NanoTera to MicroTera to MilliTera to No prefixTera to KiloTera to MegaTera to Giga

Primary source

Definitions and standards

Conversion constants and definitions for this category are checked against BIPM SI prefixes.

See Methods & sources for rounding rules, exact-value handling, and review policy.

Questions

Metric Prefixes FAQ

What is the reference unit for metric prefixes conversions?

ConvertWin uses no prefix (1) as the internal reference for this category, then converts to the selected output unit.

How accurate is this metric prefixes converter?

Every listed prefix is an exact decimal power. Binary prefixes such as Ki and Mi belong to the IEC system.