Inches Decimal Equivalents

Overview

Engineering reference data for Inches Decimal Equivalents in miscellaneous.

Key Formulas

Unit Conversion

$y = x \cdot k$

Multiply by conversion factor.

Linear Interpolation

$y = y_1 + \frac{(x - x_1)(y_2 - y_1)}{x_2 - x_1}$

Estimate between two known points.

Percentage

$p = \frac{\text{part}}{\text{whole}} \times 100\%$

Part as fraction of whole.

Variables

Symbol	Description	Unit
$x$	Input value	—
$y$	Output value	—
$k$	Conversion factor	—

Conversion Example

To convert a fractional inch to decimal, divide the numerator by the denominator:

$\text{Decimal Inches} = \frac{\text{Numerator}}{\text{Denominator}}$

Example: Convert 1/8" to decimal:

1. Numerator (top number) = 1
2. Denominator (bottom number) = 8
3. Divide: 1 ÷ 8 = 0.125"

Fractional to Decimal Reference Table

Interactive Charts

References

• Original Source