feet inch calculator

MyTechTools

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About this app

Feet Inch Calculator is an offline construction calculator for feet, inches, fractions and job-site measurements.

Built for carpenters, framers, builders, pipefitters, contractors, woodworkers, DIY users and students, it combines 10 useful construction calculators in one simple app.

Enter measurements naturally using decimal inches, fractions or feet and inches. Type values like 12.5, 3 1/2, 5' 6" or 8' and get accurate results instantly.

FEET & INCH CALCULATOR

Add, subtract, multiply and divide feet, inches and fractional measurements. Results are shown in feet and inches, decimal inches and millimetres.

10 CONSTRUCTION CALCULATORS

• Feet & Inches Calculator — calculate measurements with fractions
• Triangle Calculator — find diagonal, angles and area for square layouts
• Unit Converter — convert inches, feet, mm, cm and metres
• Plan Scale Calculator — convert drawing measurements to actual dimensions
• Pipe Fitting Calculator — calculate travel, run, rolling offset and required angle
• Circle & Column Calculator — calculate area, circumference and volume
• Advanced Circle Calculator — chord, arc length, segment height and sector area
• Stair Stringer Calculator — calculate risers, treads, run, pitch and diagonal
• Board Foot Calculator — calculate lumber board feet, quantity and cost
• Baluster & Fence Calculator — calculate spacing, gaps, centres and post counts

WORK WITH FEET, INCHES & FRACTIONS

The calculator supports:

• Decimal inches such as 12.5
• Mixed fractions such as 3 1/2
• Feet and inches such as 5' 6"
• Whole feet such as 8'
• ft, in, ′ and ″ measurement notation

Choose fraction precision from 1/8", 1/16", 1/32" or 1/64". Calculations use full precision while results are displayed in the format you prefer.

STAIR, PIPE & LUMBER TOOLS

Plan stair stringers with riser height, tread count, total run and pitch angle.

Calculate pipe fitting geometry including true offset, rolling offset, travel and required angles.

Use the board foot calculator to estimate lumber quantities and pricing, then save items to your material take-off.

SAVE CALCULATIONS & TAKE-OFFS

Save useful calculations to History for quick reference.

Create labelled lumber take-off entries with running board-foot and price totals. Share calculations or export your take-off as plain text using the Android share menu.

LIVE RESULTS & DIAGRAMS

Results update while you type.

Each construction tool includes a visual schematic diagram and shows the formula behind the calculation, making measurements easier to understand and verify.

If an input is invalid, the app explains the problem instead of returning a misleading result.

BUILT FOR THE JOB SITE

• Fast feet and inch calculations
• Fraction measurement support
• Construction geometry tools
• Stair stringer calculator
• Pipe fitting and offset calculator
• Board foot and lumber calculator
• Baluster and fence spacing calculator
• Metric and imperial unit converter
• Saved calculation history
• Material take-off
• Works completely offline

What’s new

Initial release of Feet Inch Calculator.

• Calculate feet, inches and fractions
• 10 construction tools for stairs, triangles, pipe fitting, circles, lumber and fencing
• Board foot calculator with material take-off
• Unit and plan scale converter
• Save calculation history and share results
• Live diagrams and instant calculation results