Atto to Deci Conversion

Convert between Atto and Deci quickly and accurately.

a
d

How to Convert Atto to Deci

Conversion Formula

1 a = 1E-17 d
1 d = 1E+17 a

Example

Convert 15 a to d:

15 a = 15 × 1E-17 d = 1E-16 d

Unit Information

Learn about the prefixes units you're converting between

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

Deci

d

Definition

A metric prefix equal to 10^-1, representing one-tenth of the base unit.

History/Origin

Introduced in 1795 by the French Academy of Sciences, derived from the Latin word "decimus" meaning tenth.

Current Use

Used in scientific measurements, particularly in decibel measurements and some engineering applications.

Multiplier

0.1

Offset

0

Atto to Deci Conversion Table

Atto [a] Deci [d]
1 a 1E-17 d
10 a 1E-16 d
25 a 3E-16 d
50 a 5E-16 d
100 a 1E-15 d
0 a 0E+0 d
-10 a -1E-16 d
-40 a -4E-16 d