Base 18 to base 10

Convert Base 18 to Decimal

Convert base 18 values to base 10. Integers remain exact even when they exceed JavaScript's ordinary safe-number limit.

Number From base

Result

42

To base

26₁₈ = 42₁₀

Same value in common bases

Base	Value

Method

How to convert base 18 to base 10

Each base 18 digit is evaluated by its power of 18. The exact value is then repeatedly divided by 10 to produce the destination digits.

value₁₀ = sum(digit x 18^position)

For fractional digits, the converter keeps an exact rational numerator and denominator, then generates up to 32 destination digits. An ellipsis marks a repeating or longer expansion.

Examples

Base 18 to Decimal table

Base 18 (base 18)	Decimal (base 10)
1	1
2	2
A	10
26	42
5A	100
E3	255
32G	1024

Continue converting

Decimal to Base 18Reverse conversion Binary to decimalBase 2 to base 10 Decimal to hexadecimalBase 10 to base 16