Giga to Atto Conversion

Convert between Giga and Atto quickly and accurately.

G
a

How to Convert Giga to Atto

Conversion Formula

1 G = 1E+27 a
1 a = 1E-27 G

Example

Convert 15 G to a:

15 G = 15 × 1E+27 a = 1E+28 a

Unit Information

Learn about the prefixes units you're converting between

Giga

G

Definition

A metric prefix equal to 10^9, representing one billion times the base unit.

History/Origin

Introduced in 1960 by the International Committee for Weights and Measures, derived from the Greek word "gigas" meaning giant, representing 10^9 = (10^3)^3.

Current Use

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

Multiplier

1000000000

Offset

0

Atto

a

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

0

Giga to Atto Conversion Table

Giga [G] Atto [a]
1 G 1E+27 a
10 G 1E+28 a
25 G 2E+28 a
50 G 5E+28 a
100 G 1E+29 a
0 G 0E+0 a
-10 G -1E+28 a
-40 G -4E+28 a