1/8 as a Decimal
The fraction 1/8 equals exactly 0.125 as a decimal.
How to use this tool
- Enter numerator and denominator in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your decimal and the full breakdown beneath it.
One eighth (1/8) equals 0.125, a key reference point in inch-based measurements.
Frequently asked questions
- How do you convert a fraction to a decimal?
- Divide the numerator by the denominator. For example, 3/4 = 3 ÷ 4 = 0.75.