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Best Free Carpentry Calculator Apps

227+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated June 2026

Looking for free free carpentry calculator apps? 20 of our 227+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Free Carpentry Calculator

Construction Master 5 Calc#1

Construction Master 5 Calc by Calculated Industries, Inc.

Feet Inch Fraction Calculator
Editor's Choice
🔧 Utilities
4.9😊(12K ratings)
FreeIn-App Purchases
Construction Master 5 Calc screenshot 1
Construction Master 5 Calc screenshot 2
Construction Master 5 Calc screenshot 3
Construction Master 5 Calc screenshot 4
Construction Master 5 Calc screenshot 5
Construction Master 5 Calc screenshot 6

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.

What We Love

  • 👍 Convenient to have on phone
  • 💡 Useful for construction work
  • 🚀 Performs like physical calculator
  • 👍 Helpful for calculations and estimates

Room to Improve

  • 💰 Expensive subscription model
  • 🤔 Prefer one-time purchase option
  • 🤔 Subscription cost as much as physical calculator
Feet and Inches Calculator#2

Feet and Inches Calculator by Evan Winograd

Perfect Construction Calc!
Strong Contender
🔧 Utilities
4.6😊(384 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
4.8(5 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
Carpentry Calculator
Carpentry Calculator
Carpentry Calculator
Calculations made easy
Free

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.

Roofing calculationsStair and decking measurementsConcrete slab and post hole calculations
🔧 Utilities
(0)
free
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
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
7
Construction Calculator
Construction Calculator
Construction Calculator
Feet Inch Calculator
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
(554)
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
(61)
freemium
9
Carpentry & Trim Calculator
Carpentry & Trim Calculator
Carpentry & Trim Calculator
Pro Woodworking & Framing Math
Free
🔧 Utilities
(0)
10
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
(946)
freemium
11
Construction Calculator: Pro²
Construction Calculator: Pro²
Construction Calculator: Pro²
Deck, Roof, Stairs & Concrete
Free

This app provides a comprehensive suite of tools for construction professionals and DIY enthusiasts. It offers precise calculations for decking, roofing, stairs, concrete, and more, with support for both metric and imperial units. Designed for jobsite use, it works offline and provides clear visuals for accurate on-site measurements.

Decking and flooring calculationsRoofing material and coverage estimatorsStair and stringer rise/run calculations
🔧 Utilities
(17)
free with in-app purchases
12
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
13
Calculator for iPad!
Calculator for iPad!
Calculator for iPad!
Basic & Scientific Calculator
Free

This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.

Basic and scientific calculator modesOver 30 scientific operationsCustomizable appearance (iPad)
🔧 Utilities
(60K)
free
14
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
(404K)
ad-supported
15
Calculator·
Calculator·
Calculator·
Big Basic Calculator
Free

This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.

Basic arithmetic operationsPercentage calculationsMultiple color schemes
🔧 Utilities
(33K)
free with in-app purchases
16
Calculator with History +
Calculator with History +
Calculator with History +
No ads & Scientific calculator
Free

This free calculator app offers a fast, ad-free experience with a visual input and calculation history. Customize your experience with various keyboard sounds and colors, and access advanced scientific functions when needed.

Ad-free experienceCalculation historyVisual input
💰 Finance
(23K)
free with in-app purchases
17
Calculator - Simple & Basic
Calculator - Simple & Basic
Calculator - Simple & Basic
by The App Tower Inc.
Free

This utility app offers a straightforward calculation experience with a vast selection of over 80 customizable themes. Personalize your calculator's appearance to suit your style while performing everyday math tasks.

Basic calculationsOver 80 themesTheme customization
🔧 Utilities
(146K)
free with in-app purchases
18
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
Calculates everything. Try it.
Free

This app offers a comprehensive suite of over 40 calculators and unit converters for various needs, including finance, health, construction, and everyday math. It features standard, scientific, and specialized calculators for tasks like loan amortization, currency conversion, and material estimation.

Over 40 calculators and unit convertersStandard and scientific calculator functionsFinancial calculators (interest, loan, currency)
📊 Productivity
(4.8K)
free with in-app purchases
19
Calculator Pro Lite
Calculator Pro Lite
Calculator Pro Lite
Best Calculator
Free

A highly customizable calculator app offering a modern interface and extensive features. Personalize themes, button layouts, and visual elements. Track your calculations with a detailed history and access scientific functions.

Customizable themes and colorsDual-line displayCalculation history
🔧 Utilities
(3K)
ad-supported
20
Calculator with History Tape
Calculator with History Tape
Calculator with History Tape
No Ads Calculator with Memory
Free

This app provides a straightforward calculator experience with a comprehensive history log of all your computations. Customize the keyboard, display, and history records to suit your needs. Easily add annotations and titles to past calculations for better organization.

History record functionDisplay input equationAdjustable keyboard size and font
📊 Productivity
(3.2K)
free with in-app purchases