Mega to Atto Conversion

Convert between Mega and Atto quickly and accurately.

From Mega

To Atto

How to Convert Mega to Atto

Conversion Formula

1 M = 1E+24 a

1 a = 1E-24 M

Example

Convert 15 M to a:

15 M = 15 × 1E+24 a = 1E+25 a

Unit Information

Learn about the prefixes units you're converting between

Mega

Definition

A metric prefix equal to 10^6, representing one million times the base unit.

History/Origin

Introduced in 1960 by the International Committee for Weights and Measures, derived from the Greek word "megas" meaning great, representing 10^6 = (10^3)^2.

Current Use

Used in computer science, data storage, telecommunications, and physics for large quantities.

Multiplier

1000000

Offset

Atto

Definition

A metric prefix equal to 10^-18, representing one-quintillionth of the base unit.

History/Origin

Introduced in 1964 by the International Committee for Weights and Measures, derived from the Danish word "atten" meaning eighteen.

Current Use

Used in physics, chemistry, and nanotechnology for extremely small quantities.

Multiplier

1E-18

Offset