Inches to Decimal Converter

Convert fractional inches to decimal format quickly and accurately. Perfect for construction, engineering, and design professionals.

Inches to Decimal Converter
Common Fraction Conversions Quick Reference

Click any button to quickly set fraction values

How to Use

How to Use:

  1. Enter whole inches part (optional)
  2. Enter fraction numerator and denominator
  3. Click 'Convert to Decimal' button
  4. View precise decimal result
  5. Copy or download result

Examples:

  • 2 3/4 inches = 2.75 inches
  • 1/8 inch = 0.125 inches
  • 5 7/16 inches = 5.4375 inches
  • 3/32 inch = 0.09375 inches

About Inches to Decimal Conversion

Understanding Inches to Decimal

Converting fractional inches to decimal format is essential for precision work in construction, engineering, and manufacturing. Our free online inches to decimal converter makes this process quick and accurate.

Whether you're working with architectural drawings, machining parts, or doing carpentry work, converting between fractional and decimal measurements is a common requirement.

Why Use Decimal Format?

  • Precision - More accurate for calculations
  • CAD Software - Most design software uses decimals
  • Manufacturing - CNC machines work with decimal values
  • Engineering - Standard format for technical drawings
  • Calculations - Easier mathematical operations

Common Inches to Decimal Conversions

FractionDecimalFractionDecimal
1/16"0.0625"9/16"0.5625"
1/8"0.125"5/8"0.625"
3/16"0.1875"11/16"0.6875"
1/4"0.25"3/4"0.75"
5/16"0.3125"13/16"0.8125"
3/8"0.375"7/8"0.875"
7/16"0.4375"15/16"0.9375"
1/2"0.5"1"1.0"

How to Use

How to Use:

1

Enter whole inches part (optional)

2

Enter fraction numerator and denominator

3

Click 'Convert to Decimal' button

4

View precise decimal result

5

Copy or download result

Examples:

2 3/4 inches = 2.75 inches
1/8 inch = 0.125 inches
5 7/16 inches = 5.4375 inches
3/32 inch = 0.09375 inches

Common Use Cases for Inches to Decimal Conversion

Construction & Carpentry

Convert tape measure readings to decimal format for precise cuts and measurements in construction projects.

Engineering & Design

Convert fractional dimensions to decimal format for CAD software, technical drawings, and engineering calculations.

Manufacturing & Machining

Convert measurements for CNC programming, quality control, and precision manufacturing processes.

Architecture & Planning

Convert architectural measurements for building plans, space planning, and construction documentation.

Frequently Asked Questions

How do I convert inches to decimal manually?
To convert fractions to decimals, divide the numerator by the denominator. For example, 3/4 = 3 ÷ 4 = 0.75 inches.
What's the most accurate decimal place for inches?
For most applications, 4 decimal places (0.0001") provides sufficient accuracy. This equals about 1/10,000 of an inch.
Why use decimal inches instead of fractions?
Decimal inches are easier for calculations, required by most CAD software, and standard in manufacturing and engineering.
Is this converter free to use?
Yes, our inches to decimal converter is completely free with no registration required. Use it as many times as you need.