Best Rafter Calculator Apps

222+ iOS apps curated and reviewed

4.5 avg rating
18 free apps
Updated May 2026

Looking for free rafter calculator apps? 18 of our 222+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Rafter Calculator

RedX Roof - Rafter Calculator#1

RedX Roof - Rafter Calculator by RedX Technology Inc

Rafters, Valleys, Trusses
Editor's Choice
🔧 Utilities
4.7😐(810 ratings)
FreeIn-App Purchases
RedX Roof - Rafter Calculator screenshot 1
RedX Roof - Rafter Calculator screenshot 2
RedX Roof - Rafter Calculator screenshot 3
RedX Roof - Rafter Calculator screenshot 4
RedX Roof - Rafter Calculator screenshot 5
RedX Roof - Rafter Calculator screenshot 6

This app is a 3D roof builder and rafter calculator for contractors and DIYers. It automatically generates professional blueprints with labeled parts, cut lists, and material estimates. Design complex roof systems in interactive 3D and export plans for the job site.

What We Love

  • 🚀 Great app
  • 👍 Easy to use
  • 👍 Helpful for roofing work
  • 👍 Saves time

Room to Improve

  • 🐛 Crashes
  • 🔒 Requires account signup
  • 💰 Paid features
Construction Master Pro Calc#2

Construction Master Pro Calc by Calculated Industries, Inc.

Feet Inch Fraction Calculator
Strong Contender
🔧 Utilities
4.8😐(39K ratings)
FreeIn-App Purchases
#52in Utilities
Construction Master Pro Calc screenshot 1
Construction Master Pro Calc screenshot 2
Construction Master Pro Calc screenshot 3
Construction Master Pro Calc screenshot 4
Construction Master Pro Calc screenshot 5
Construction Master Pro Calc screenshot 6

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.

What We Love

  • 🚀 Convenient and always available
  • ⚙️ Comprehensive construction calculations
  • 💪 Industry-standard tool
  • 🔍 Accurate and reliable

Room to Improve

  • 💰 Subscription model too expensive
  • 🔒 Locks data behind subscription
  • 🔄 Forced to re-purchase after device changes
Roof Guide - Carpentry Calc#3

Roof Guide - Carpentry Calc by Infoguide Pty Ltd

Carpenters Framing Calculator
Worth Considering
🔧 Utilities
4.1(16 ratings)
FreeIn-App Purchases
Roof Guide - Carpentry Calc screenshot 1
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Roof Guide - Carpentry Calc screenshot 3
Roof Guide - Carpentry Calc screenshot 4
Roof Guide - Carpentry Calc screenshot 5
Roof Guide - Carpentry Calc screenshot 6

This app provides specialized calculators for roofing, framing, decking, stairs, and concrete projects. It helps construction professionals estimate quantities, costs, and set out materials accurately using US or metric measurements.

More Rafter Calculator apps to explore

4
Roofing Rafter Calculator
Roofing Rafter Calculator
Roofing Rafter Calculator
Calculate rafter cuts
Free
🔍 Reference
(0)
5
Roofing Calculator Pro
Roofing Calculator Pro
Roofing Calculator Pro
Calculate in meter, cm, in, ft
Free

This tool quickly calculates roofing pitch, rafter length, and roof area. It seamlessly converts between imperial and metric units in real-time, supporting various input and output formats for measurements.

Real-time unit conversion (imperial/metric)Calculate roof pitchCalculate rafter length
🔧 Utilities
(31)
free with in-app purchases
6
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
(12K)
free with in-app purchases
7
Rafter Calculator Easy
Rafter Calculator Easy
Rafter Calculator Easy
by YAVUZ BULAMADIK
Free
🔧 Utilities
(0)
8
Feet and Inches Calculator
Feet and Inches Calculator
Feet and Inches Calculator
Perfect Construction Calc!
Free

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.

Construction math and estimatingLayout, framing, and jobsite calculationsImperial and metric unit conversion
🔧 Utilities
(384)
free with in-app purchases
9
Rafter Help
Rafter Help
Rafter Help
Roof Pitch + Length Calculator
$1.99

This app simplifies roof construction by calculating rafter lengths and related measurements. It supports various input formats for pitch and length, offering both quick calculations for gable roofs and advanced control for more complex needs.

Calculate rafter length and associated valuesDetermine roof pitch, rafter lengths, and ridge heightSupports gable roofs
🔧 Utilities
(206)
free
10
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
11
The Chippy Calc: Calculator
The Chippy Calc: Calculator
The Chippy Calc: Calculator
Stairs, Decks, Rafters, Walls
Free

This app provides carpenters, builders, and DIYers with precise, visual construction calculations. It offers specialized tools for stairs, decks, rafters, and more, with support for both metric and imperial units. All calculations can be saved and accessed offline.

Visual results with scaled diagramsMetric and imperial unit supportOffline functionality
🔧 Utilities
(2)
free with in-app purchases
12
RoofCalc - Roofing Calculator
RoofCalc - Roofing Calculator
RoofCalc - Roofing Calculator
Roof & Framing Carpenters
Free
$12.99 | 100% OFF

This app assists roofing and framing carpenters with complex calculations for various roof types and stud walls. It offers metric and imperial unit conversion, a standard calculator, and the ability to share results via email or message. Optimized for iPhones and iPads, it's designed for ease of use by construction professionals.

Hipped, gabled, and single-pitch roof calculationsStud wall calculations and estimatingMetric and imperial unit conversion
🔧 Utilities
(9)
free with in-app purchases
13
Construction Calculator SS
Construction Calculator SS
Construction Calculator SS
Design & Building Math Calc
Free

This app provides construction professionals and DIYers with precise calculations for area, volume, and measurements. It includes material estimation for concrete, tiles, and paint, along with multi-language support and an intuitive interface.

Area and volume calculationsFeet-inch calculationsUnit conversions
🔧 Utilities
(8)
ad-supported
14
Roof Calculator: Pitch, Angle
Roof Calculator: Pitch, Angle
Roof Calculator: Pitch, Angle
Cost, area, material: m2, ft2
Free

Easily calculate roof area and cost by entering roof or house dimensions. This tool simplifies complex roofing calculations, helping you estimate materials and expenses.

Automatic roof area calculationRoof cost estimationInput roof or house dimensions
🔧 Utilities
(30)
free with in-app purchases
15
Feet & Inches Tape Calculator
Feet & Inches Tape Calculator
Feet & Inches Tape Calculator
Calculate feet & inches
Free

This app provides a convenient way to perform calculations involving feet and inches. It features a visual tape measure display and supports fractions and mixed decimals, showing results in feet, inches, and centimeters.

Swift measurement calculationsSupport for fractions and mixed decimalsDisplay results in feet, inches, and centimeters
🔧 Utilities
(9.2K)
free with in-app purchases
16
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
17
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
18
Construction Calculator Master
Construction Calculator Master
Construction Calculator Master
Feet Inch Fraction Rafter Cm
Free

This advanced construction calculator simplifies complex measurements for builders, carpenters, and remodelers. It offers a comprehensive suite of math functions, multi-unit support, and visual aids for calculations involving fractions, trigonometry, and rafters. Reduce errors and save time with its intuitive interface and customizable options.

Multi-unit fraction support (feet, inches, yards, metric)Trigonometric functions with visualizationRafter and triangle visualization
🔧 Utilities
(436)
free with in-app purchases
19
BuildCalc
BuildCalc
BuildCalc
Construction Calculator
$24.99

This app enhances traditional construction calculators with advanced functions for layout, material estimation, and complex calculations. It offers interactive features, customizable material sizes, and streamlined results presentation to reduce complexity and improve accuracy for professionals.

Advanced baluster and stair layoutFence post and material estimationInteractive calculation adjustments
🔧 Utilities
(68)
paid
20
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

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