Overview

Cookie's Measure Aid is a simple, powerful conversion tool that converts between traditional feet & inches measurements and decimal feet. Perfect for construction, architecture, engineering, and any profession that works with measurements.

Quick Start

The app has two conversion modes:

  1. Feet & Inches → Decimal Feet - Convert traditional measurements to decimal format
  2. Decimal Feet → Feet & Inches - Convert decimal measurements back to feet and inches

Results are calculated and displayed in real-time as you enter values.

Converting Feet & Inches to Decimal Feet

How to Use

  1. Enter the Feet value in the feet input field
  2. Enter the Inches value (0-11) in the inches input field
  3. Select a Fraction using the picker wheel (optional)
  4. The decimal feet result appears automatically below

Fraction Options

The fraction picker supports common construction fractions:

  • 1/16, 1/8, 3/16, 1/4, 5/16, 3/8, 7/16
  • 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16

You can also select no fraction (empty option) if you only need whole inches.

Example

To convert 5 feet, 8 inches, and 3/4 inch to decimal feet:

  1. Enter 5 in the Feet field
  2. Enter 8 in the Inches field
  3. Select 3/4 from the fraction picker
  4. Result: 5.73 ft

Converting Decimal Feet to Feet & Inches

How to Use

  1. Tap the Decimal Feet input field
  2. Enter the decimal value using the numeric keypad
  3. The feet & inches result appears automatically below

Input Method

The decimal feet input uses an ATM-style entry method:

  • Enter numbers as if entering cents (e.g., enter 573 for 5.73 feet)
  • The value is automatically divided by 100 and displayed as a decimal
  • Results are displayed to 2 decimal places

Example

To convert 5.73 feet to feet & inches:

  1. Tap the Decimal Feet field
  2. Enter 573 (which displays as 5.73)
  3. Result: 5' 8 3/4"

Features

  • Two-Way Conversion - Convert in both directions instantly
  • Fraction Support - Supports all common construction fractions (1/16 through 15/16)
  • Real-Time Results - Calculations update automatically as you type
  • Precise Fractions - Automatically reduces fractions to lowest terms (e.g., 4/16 becomes 1/4)
  • Smart Rounding - Rounds to nearest 1/16 inch for accurate conversions
  • Input Validation - Inches are automatically limited to 0-11 (prevents invalid entries)
  • Haptic Feedback - Tactile feedback when changing fraction selections
  • Easy Keyboard Dismissal - Swipe down anywhere on screen to hide keyboard
  • Dark Theme - Easy on the eyes with black background and white text

Tips & Best Practices

For Accurate Conversions

  • Always enter inches as a value between 0-11 (the app will automatically cap at 11)
  • Use the fraction picker for precise measurements down to 1/16 inch
  • When entering decimal feet, remember to enter as "cents" (e.g., 1250 for 12.50 feet)

Common Use Cases

  • Construction: Convert blueprint measurements to decimal for calculations
  • Architecture: Switch between traditional and decimal measurements
  • Engineering: Quick conversions for CAD and design work
  • Estimating: Convert measurements for material calculations

Understanding the Results

Decimal Feet Format

Decimal feet are displayed with 2 decimal places, followed by "ft":

  • 5.73 ft means 5 feet and 0.73 feet (approximately 8.76 inches)
  • 12.50 ft means 12 feet and 6 inches exactly

Feet & Inches Format

Traditional measurements are displayed as:

  • 5' 8 3/4" means 5 feet, 8 inches, and 3/4 of an inch
  • 12' 6" means 12 feet and 6 inches (no fraction)
  • Fractions are automatically reduced (e.g., 8/16 becomes 1/2)

Technical Details

  • Precision: Decimal feet displayed to 2 decimal places
  • Fraction Precision: Rounds to nearest 1/16 inch
  • Conversion Formula: Decimal Feet = Feet + (Inches + Fraction) / 12
  • Platform: iOS (iPhone & iPad)
  • Input Method: Numeric keypad for all inputs

Troubleshooting

Inches field won't accept values above 11?

  • This is by design - inches are automatically limited to 0-11
  • If you need more inches, add them as feet (e.g., 13 inches = 1 foot 1 inch)

Decimal input not working as expected?

  • Remember to enter values as "cents" - enter 1250 for 12.50 feet
  • The display shows the decimal value, but you enter whole numbers

Fraction not showing in result?

  • If the conversion results in a whole number of inches, no fraction is displayed
  • Fractions are only shown when there's a fractional part

Keyboard won't dismiss?

  • Swipe down anywhere on the screen to hide the keyboard
  • You can also tap outside the input field

Conversion Examples

Example 1: Simple Conversion

Input: 6 feet, 3 inches

Result: 6.25 ft

(3 inches = 0.25 feet, since 3 ÷ 12 = 0.25)

Example 2: With Fraction

Input: 4 feet, 7 inches, 1/2 inch

Result: 4.63 ft

(7.5 inches = 0.625 feet, since 7.5 ÷ 12 = 0.625)

Example 3: Decimal to Feet & Inches

Input: 8.75 ft (enter as 875)

Result: 8' 9"

(0.75 feet = 9 inches, since 0.75 × 12 = 9)

Example 4: Complex Conversion

Input: 10.42 ft (enter as 1042)

Result: 10' 5"

(0.42 feet ≈ 5 inches, rounded to nearest 1/16)