Base 9 to Base 4 Conversion

Convert between Base 9 and Base 4 quickly and accurately.

b9
b4

How to Convert Base 9 to Base 4

Conversion Formula

1 b9 = 2.25 b4
1 b4 = 0.444 b9

Example

Convert 15 b9 to b4:

15 b9 = 15 × 2.25 b4 = 33.75 b4

Unit Information

Learn about the numbers units you're converting between

Base 9

b9

Definition

Base 9 is a base-9 numeral system using digits 0-9 and letters A-?. It is rarely used in practice but has theoretical applications in computer science and mathematics.

History/Origin

Base 9 systems have been studied in mathematics and computer science, though they have limited practical applications compared to more common bases like binary, decimal, or hexadecimal.

Current Use

Base 9 is used in mathematical research, theoretical computer science, and some specialized encoding applications.

Multiplier

9

Offset

0

Base 4

b4

Definition

Base 4 is a base-4 numeral system using digits 0-9 and letters A-:. It is rarely used in practice but has theoretical applications in computer science and mathematics.

History/Origin

Base 4 systems have been studied in mathematics and computer science, though they have limited practical applications compared to more common bases like binary, decimal, or hexadecimal.

Current Use

Base 4 is used in mathematical research, theoretical computer science, and some specialized encoding applications.

Multiplier

4

Offset

0

Base 9 to Base 4 Conversion Table

Base 9 [b9] Base 4 [b4]
1 b9 2.25 b4
10 b9 22.5 b4
25 b9 56.25 b4
50 b9 112.5 b4
100 b9 225 b4
0 b9 0E+0 b4
-10 b9 -22.5 b4
-40 b9 -90 b4