Metric (SI) Prefix Converter
Convert between 25 metric prefix units instantly. Enter a value, pick your units and get the result with the formula, a full conversion table and worked examples.
1 M in all metric prefix units
Updates live as you type. Click a row to set it as the target unit.
| Unit | Symbol | Value |
|---|---|---|
| Quecto (q) | q | 1 × 1036 |
| Ronto (r) | r | 1 × 1033 |
| Yocto (y) | y | 1 × 1030 |
| Zepto (z) | z | 1 × 1027 |
| Atto (a) | a | 1 × 1024 |
| Femto (f) | f | 1 × 1021 |
| Pico (p) | p | 1 × 1018 |
| Nano (n) | n | 1 × 1015 |
| Micro (µ) | µ | 1,000,000,000,000 |
| Milli (m) | m | 1,000,000,000 |
| Centi (c) | c | 100,000,000 |
| Deci (d) | d | 10,000,000 |
| No prefix (base unit) | unit | 1,000,000 |
| Deca (da) | da | 100,000 |
| Hecto (h) | h | 10,000 |
| Kilo (k) | k | 1,000 |
| Mega (M) | M | 1 |
| Giga (G) | G | 0.001 |
| Tera (T) | T | 0.000001 |
| Peta (P) | P | 1 × 10−9 |
| Exa (E) | E | 1 × 10−12 |
| Zetta (Z) | Z | 1 × 10−15 |
| Yotta (Y) | Y | 1 × 10−18 |
| Ronna (R) | R | 1 × 10−21 |
| Quetta (Q) | Q | 1 × 10−24 |
How to Convert Metric Prefix Units
SI prefixes scale any unit by powers of ten, from quecto (10⁻³⁰) to quetta (10³⁰). Converting between prefixes is the same for any unit, so 1 mega equals 1000 kilo whether the unit is watts or ohms.
Every unit on this page is stored as a fixed factor relative to one reference unit, the no prefix (base unit) (unit). Converting is a two step multiply and divide:
- Multiply your value by the factor of the source unit to get the value in unit.
- Divide that result by the factor of the target unit.
Mega (M) to Kilo (k) conversion table
| Mega (M) (M) | Kilo (k) (k) |
|---|---|
| 1 M | 1,000 k |
| 2 M | 2,000 k |
| 3 M | 3,000 k |
| 4 M | 4,000 k |
| 5 M | 5,000 k |
| 6 M | 6,000 k |
| 7 M | 7,000 k |
| 8 M | 8,000 k |
| 9 M | 9,000 k |
| 10 M | 10,000 k |
| 15 M | 15,000 k |
| 20 M | 20,000 k |
| 25 M | 25,000 k |
| 30 M | 30,000 k |
| 40 M | 40,000 k |
| 50 M | 50,000 k |
| 75 M | 75,000 k |
| 100 M | 100,000 k |
| 250 M | 250,000 k |
| 500 M | 500,000 k |
| 1,000 M | 1,000,000 k |
Metric Prefix Units and Conversion Factors
Value of one unit expressed in unit.
| Unit | Symbol | In unit |
|---|---|---|
| Quecto (q) | q | 1 × 10−30 |
| Ronto (r) | r | 1 × 10−27 |
| Yocto (y) | y | 1 × 10−24 |
| Zepto (z) | z | 1 × 10−21 |
| Atto (a) | a | 1 × 10−18 |
| Femto (f) | f | 1 × 10−15 |
| Pico (p) | p | 1 × 10−12 |
| Nano (n) | n | 1 × 10−9 |
| Micro (µ) | µ | 0.000001 |
| Milli (m) | m | 0.001 |
| Centi (c) | c | 0.01 |
| Deci (d) | d | 0.1 |
| No prefix (base unit) | unit | 1 |
| Deca (da) | da | 10 |
| Hecto (h) | h | 100 |
| Kilo (k) | k | 1,000 |
| Mega (M) | M | 1,000,000 |
| Giga (G) | G | 1,000,000,000 |
| Tera (T) | T | 1,000,000,000,000 |
| Peta (P) | P | 1 × 1015 |
| Exa (E) | E | 1 × 1018 |
| Zetta (Z) | Z | 1 × 1021 |
| Yotta (Y) | Y | 1 × 1024 |
| Ronna (R) | R | 1 × 1027 |
| Quetta (Q) | Q | 1 × 1030 |
Frequently Asked Questions
How do I convert mega (m) to kilo (k)?
To convert mega (m) (M) to kilo (k) (k), multiply the value in mega (m) by 1,000. For example, 1 M = 1,000 k.
How do I convert milli (m) to micro (µ)?
To convert milli (m) (m) to micro (µ) (µ), multiply the value in milli (m) by 1,000. For example, 1 m = 1,000 µ.
How do I convert giga (g) to mega (m)?
To convert giga (g) (G) to mega (m) (M), multiply the value in giga (g) by 1,000. For example, 1 G = 1,000 M.
Can I see a value in every metric prefix unit at once?
Yes. Enter a value and choose the source unit; the "all units" table below the converter instantly lists the equivalent in all 25 supported units. Click any row to make it the target unit.
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