Best Free Carpentry Calculator Apps

250+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated August 2026

Looking for free free carpentry calculator apps? 20 of our 250+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Free Carpentry Calculator Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Carpentry CalculatorCarpentry CalculatorFree5.0★ (1)NoYesAug 2026
2Feet and Inches CalculatorFeet and Inches CalculatorFree4.6★ (401)YesYesAug 2026
3Carpenter Tools - CalculatorCarpenter Tools - CalculatorFree4.9★ (8)NoYesJul 2026
4Construction Master 5 CalcConstruction Master 5 CalcFree4.8★ (13K)NoYesAug 2026
5Construction Master Pro CalcConstruction Master Pro CalcFree4.8★ (39K)NoYesAug 2026
6Construction CalculatorConstruction CalculatorFree4.6★ (619)NoYesAug 2026
7Carpentry & Trim CalculatorCarpentry & Trim CalculatorFree4.4★ (5)NoYesAug 2026
8Construction Calculator .Construction Calculator .Free4.5★ (65)NoYesAug 2026

Top Picks for Free Carpentry Calculator

Carpentry Calculator#1

Carpentry Calculator by Matthew Spencer

Calculations made easy
Editor's Choice
🔧 Utilities
5.0(1 ratings)
FreeIn-App Purchases
Carpentry Calculator screenshot 1
Carpentry Calculator screenshot 2
Carpentry Calculator screenshot 3
Carpentry Calculator screenshot 4
Carpentry Calculator screenshot 5
Carpentry Calculator screenshot 6

This app simplifies complex calculations for carpenters, builders, and DIY enthusiasts. It handles tasks like roofing, stairs, and decking, offering both metric and imperial units. Visual aids and detailed measurements enhance accuracy and efficiency on any project.

Feet and Inches Calculator#2

Feet and Inches Calculator by Evan Winograd

Perfect Construction Calc!
Strong Contender
🔧 Utilities
4.6😊(401 ratings)
FreeAdsIn-App Purchases
Feet and Inches Calculator screenshot 1
Feet and Inches Calculator screenshot 2
Feet and Inches Calculator screenshot 3
Feet and Inches Calculator screenshot 4
Feet and Inches Calculator screenshot 5
Feet and Inches Calculator screenshot 6

A powerful construction calculator designed for tradespeople. It offers a wide range of tools for estimating, layout, framing, and jobsite calculations, helping to save time and improve accuracy. Supports both imperial and metric units.

What We Love

  • 🚀 Easy to use
  • 🚀 Provides both feet/inches and decimal results
  • 🚀 Lots of additional tools and features
  • 👍 Consistently updated

Room to Improve

  • 🐛 Occasional calculation errors
  • 🐛 Rotation issues after updates
  • 🔋 High battery usage
Carpenter Tools - Calculator#3

Carpenter Tools - Calculator by Sergii Nesterenko

Framing, Stairs, Roof & More
Worth Considering
🔧 Utilities
4.9(8 ratings)
FreeIn-App Purchases
Carpenter Tools - Calculator screenshot 1
Carpenter Tools - Calculator screenshot 2
Carpenter Tools - Calculator screenshot 3
Carpenter Tools - Calculator screenshot 4
Carpenter Tools - Calculator screenshot 5
Carpenter Tools - Calculator screenshot 6

This app simplifies carpentry calculations for framing, roofing, stairs, and more. Quickly get accurate measurements and material counts without complex formulas or spreadsheets. Ideal for on-site work, shop use, or estimating.

More Free Carpentry Calculator apps to explore

4
Construction Master 5 Calc
Construction Master 5 Calc
Construction Master 5 Calc
Feet Inch Fraction Calculator
Free

This app is a powerful feet-inch-fraction calculator designed for construction professionals. It offers advanced calculation capabilities for layouts, bids, and estimates, simplifying complex measurements and conversions for enhanced project accuracy and efficiency.

Feet-inch-fraction calculationsRight angle and rafter calculationsArea and volume solutions
🔧 Utilities
(13K)
free with in-app purchases
5
Construction Master Pro Calc
Construction Master Pro Calc
Construction Master Pro Calc
Feet Inch Fraction Calculator
Free

This app is a powerful construction calculator designed for professionals working with dimensions. It offers a wide range of solutions for dimensional math, right angle calculations, area and volume, and special functions, helping to improve speed and accuracy in layouts, bids, and estimates.

Dimensional math and conversionsRight angle and rafter calculationsArea and volume solutions
🔧 Utilities
(39K)
free with in-app purchases
6
Construction Calculator
Construction Calculator
Construction Calculator
Carpentry & Stair Trigonometry
Free

This app is a powerful calculator designed for construction and woodworking professionals, as well as students. It simplifies calculations involving feet, inches, and fractions, offering conversions between various measurement units and displaying equations and results simultaneously. Advanced features are available through optional in-app purchases.

Decimal to fraction converterFraction to decimal conversionSimultaneous equation and result display
🔧 Utilities
(619)
free with in-app purchases
7
Carpentry & Trim Calculator
Carpentry & Trim Calculator
Carpentry & Trim Calculator
Pro Woodworking & Framing Math
Free

This app provides professional-grade calculators for carpentry tasks, helping users work faster, reduce material waste, and make informed decisions. It offers a variety of tools for layout, framing, and sizing, designed for efficiency and accuracy on any job site.

Board and Batten LayoutFraming MathCabinet Door Sizing
🔧 Utilities
(5)
free with in-app purchases
8
Construction Calculator .
Construction Calculator .
Construction Calculator .
Feet Inch Calculator
Free

This app provides essential tools for contractors, builders, and DIYers to perform fast, accurate construction calculations on the job site. It streamlines planning, estimating, and material measurement for various building tasks, reducing errors and saving costs.

Specialized calculators for concrete, lumber, drywall, and roofingAdvanced stair and framing calculatorsInstant unit conversions
🔧 Utilities
(65)
freemium
9
Carpenter's Calculator
Carpenter's Calculator
Carpenter's Calculator
Supports mixed numbers
Free

This app simplifies calculations involving US Customary units, especially fractions and mixed numbers. It offers a user-friendly interface for woodworking measurements and general calculations, storing recent expressions for easy recall.

US Customary unit calculationsMixed number arithmeticFraction support
🔧 Utilities
(14)
free
10
Concrete Calculator Plus
Concrete Calculator Plus
Concrete Calculator Plus
by Inch Calculator
Free

This app provides 15 calculators for estimating concrete, blocks, mortar, rebar, and gravel. It supports various shapes and units, offering material cost estimations for construction projects.

15 concrete estimation calculatorsEstimates cubic yards or bagsCalculates material costs
🔧 Utilities
(21K)
ad-supported
11
Chippy Tools: Construction
Chippy Tools: Construction
Chippy Tools: Construction
Construction Calculator
Free

This app simplifies complex calculations for construction professionals. It offers a variety of tools for tasks like spacing, measurements, and material estimation, helping to reduce errors and save time on job sites. Available on iPhone and iPad, it aims to be an essential tool for tradespeople.

Baluster spacing calculatorFlat run attached baluster calculatorSquare calculator
🔧 Utilities
(903)
freemium
12
Feet Inch Calculator Tape Mate
Feet Inch Calculator Tape Mate
Feet Inch Calculator Tape Mate
Fraction & Measure Converter
Free

This construction calculator streamlines measurements with a visual ruler and smart keypad, reducing taps for faster calculations. It offers real-time results, history recall, and one-handed operation for tradespeople.

Visual ruler for zero-typing inputSmart keypad for fast fraction entryReal-time results with unit conversions
📊 Productivity
(2)
free with in-app purchases
13
Sixteenths: Construction Calc
Sixteenths: Construction Calc
Sixteenths: Construction Calc
Feet Inch Fraction Calculator
Free

This app simplifies complex construction calculations by handling feet, inches, and fractions accurately. It offers specialized solvers for common jobsite tasks like stairs, roof pitch, and concrete, with results saved automatically for easy recall. It's designed for offline use and provides a one-time purchase for full access.

Exact fraction math for feet and inchesTen jobsite solvers (stairs, roof pitch, etc.)Automatic result saving and naming
🔧 Utilities
(1)
free with in-app purchases
14
CutOnce - Builder's Calculator
CutOnce - Builder's Calculator
CutOnce - Builder's Calculator
Stairs, Rafters & Fractions
Free
$19.99 | 100% OFF

This app provides essential jobsite calculations for contractors and builders, including stair and rafter plans, feet-inch-fraction math, and right triangle solutions. Generate detailed PDF plans offline and export them for shop use or sharing with your crew.

Stair and rafter PDF plan generationOffline jobsite calculationsFeet-inch-fraction math
🔧 Utilities
(5)
free
15
Calculator‰
Calculator‰
Calculator‰
Default Calculator
Free

This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.

Large buttonsClear displayFast calculations
🔧 Utilities
(409K)
ad-supported
16
Construction Calc - Civil Calc
Construction Calc - Civil Calc
Construction Calc - Civil Calc
All-in-One Building Calculator
Free
📊 Productivity
(0)
17
Hammer Construction Calculator
Hammer Construction Calculator
Hammer Construction Calculator
Multi-Unit, Fractions & Tools
Free
🔧 Utilities
(0)
18
Construction Calculator: Tape
Construction Calculator: Tape
Construction Calculator: Tape
Measure Feet, Inch, Fraction
Free
🔧 Utilities
(0)
19
Toolbox Calculator
Toolbox Calculator
Toolbox Calculator
by Beyzano Tech LLC
Free
💼 Business
(0)
20
Kerf: Board Foot Calculator
Kerf: Board Foot Calculator
Kerf: Board Foot Calculator
Hardwood & lumber cost quote
Free
🔧 Utilities
(0)

FAQ about Free Carpentry Calculator

What are the best free carpentry calculator apps for iPhone?
Carpentry Calculator tops our free carpentry calculator apps ranking as of August 2026, with a 5.0-star average from 1 App Store ratings, and it's free to download.
Carpentry Calculator has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 250+ free carpentry calculator apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Carpentry Calculator handles a wide range of calculations including roofing, stairs, concrete slabs and post holes, cladding, decking, balustrades, and trigonometry. It aims to simplify these often tricky tasks for users.
Yes, Carpentry Calculator supports both metric and imperial units, making it versatile for users working with different measurement systems.