Best Roofing Rafter Calculator Apps

212+ iOS apps curated and reviewed

3.9 avg rating
17 free apps
Updated May 2026

The best roofing rafter calculator apps on iPhone average 3.9★ across 212+ titles — we've ranked them by what real users actually keep on their phones. Updated May 2026.

Top Picks for Roofing 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

A powerful construction tool for roof design and calculations, featuring a free rafter calculator and various tools for different roofing projects like trusses, valleys, and rafters. Save time and get precise measurements with this user-friendly app.

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#3

Construction Master Pro Calc by Calculated Industries, Inc.

Feet Inch Fraction Calculator
Worth Considering
🔧 Utilities
4.8😐(38K ratings)
FreeIn-App Purchases
#59in 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

An essential tool for professionals working with dimensions, this app optimizes speed and accuracy while reducing errors. Try it for free before purchase on your App Store account. Ideal for enhancing productivity on the go.

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

More Roofing Rafter Calculator apps to explore

4
Rafter Help
Rafter Help
Rafter Help
Roof Pitch + Length Calculator
$1.99

This application helps users calculate rafter length and associated values for building, allowing them to quickly find roof pitch, rafter lengths, and ridge height for gable roofs. With various input options and features, users can accurately solve rafter equations and get precise results, try it out to make your building calculations easier.

🔧 Utilities
(206)
5
RoofCalc - Roofing Calculator
RoofCalc - Roofing Calculator
RoofCalc - Roofing Calculator
Roof & Framing Carpenters
Free
$12.99 | 100% OFF

This roofing and framing carpentry calculator is an essential tool for construction professionals, offering easy-to-use calculations for various roof types and timber layouts, with features such as metric and imperial conversions, and the ability to print, email, or message results. Download now to streamline your roofing construction calculations and estimates.

🔧 Utilities
(9)
6
Roofing Calculator Pro
Roofing Calculator Pro
Roofing Calculator Pro
Calculate in meter, cm, in, ft
Free

This application quickly calculates and converts roofing measurements between imperial and metric units, allowing users to easily determine roof pitch, rafter length, and roof area. Simply input your rise, run, and house area, and get instant results in various units, including meters, centimeters, inches, and feet.

🔧 Utilities
(31)
7
Roof Calculator: Pitch, Angle
Roof Calculator: Pitch, Angle
Roof Calculator: Pitch, Angle
Cost, area, material: m2, ft2
Free

This application helps users calculate the area and cost of their roof by simply entering the roof size or house area parameters. It provides an easy and automatic way to get accurate calculations for roof area and material costs in both square meters and square feet.

🔧 Utilities
(30)
8
Roof Guide - Carpentry Calc
Roof Guide - Carpentry Calc
Roof Guide - Carpentry Calc
Carpenters Framing Calculator
Free

This construction calculator app provides a comprehensive set of tools for carpenters, roofers, contractors, and builders to perform calculations for roofing, framing, decking, stairs, and concrete, with features to estimate quantities and costs. With this app, users can save time and effort on calculations, and easily generate reports, making it an indispensable tool for construction professionals.

🔧 Utilities
(16)
9
Span Calc
Span Calc
Span Calc
Span calculator using NDS®
Free

This application calculates maximum horizontal spans for wood joists and rafters based on the 2021 National Design Specification for Wood Construction, allowing users to compare different species and grades. Try it out to determine joist and rafter spans for common loading conditions and make informed decisions for your wood construction projects.

🔧 Utilities
(15)
10
Chippy Tools: Construction
Chippy Tools: Construction
Chippy Tools: Construction
Construction Calculator
Free

"Empower your carpentry work with Chippy Tools, the ultimate Construction Calculator for precise and quick calculations on the job. From baluster spacing to concrete calculations, this user-friendly app is a must-have for architects, builders, and woodworkers. No ads, just pure efficiency. Try it now!"

🔧 Utilities
(946)
11
Pitch Gauge
Pitch Gauge
Pitch Gauge
Roofing & Construction
Free

Pitch Gauge is a roofing tool that accurately measures the pitch of a roof to assist with construction and renovation projects. Simply download the app to easily determine roof pitch angles and improve your roofing work today.

💼 Business
(261)
12
Carpentry Calculator
Carpentry Calculator
Carpentry Calculator
Calculations made easy
Free
🔧 Utilities
(0)
13
Roof Tool
Roof Tool
Roof Tool
by Blue Dog Training PTY LTD
Free

This handy app calculates the pitch and geometrical length of all roofing members for various roof types, including Hip and Valley, Splayed End Hip, Hexagonal, and Octagonal roofs. Try it now to easily get roofing calculations and visualize your roof design.

🔧 Utilities
(3)
14
Construction Master 5 Calc
Construction Master 5 Calc
Construction Master 5 Calc
Feet Inch Fraction Calculator
Free

An innovative feet-inch-fraction calculator designed for construction professionals, the app offers versatile functionality, advanced calculation capabilities, and comprehensive solutions for various projects. Optimized for mobile devices, it enhances efficiency and accuracy in measurements, making it a valuable tool for builders, contractors, designers, and advanced DIYers. Simplify complex calculations and elevate your projects with the Construction Master 5 – your indispensable partner for precision and professionalism.

🔧 Utilities
(12K)
15
Roof Carpenter - Rafter Calc
Roof Carpenter - Rafter Calc
Roof Carpenter - Rafter Calc
Pitched Roof - Length & Angle
$0.99

This application helps users calculate rafter and roof measurements, including lengths, angles, and areas, for various construction projects. Simply input your roof pitch and measurements, and the app will provide calculations and display angles that can be transferred to materials using a smartphone screen, mitre saw, or bevel.

🔧 Utilities
(2)
16
Right Way Roofing
Right Way Roofing
Right Way Roofing
Roofing Calculator
Free
🔧 Utilities
(0)
17
Concrete Calculator Plus
Concrete Calculator Plus
Concrete Calculator Plus
by Inch Calculator
Free

Estimate concrete quantities with ease using 15 free calculators available in the app for various construction projects such as slabs, walls, and columns. Input dimensions in different units and receive results in both US customary and metric measurements. Access these trusted calculators by visiting www.inchcalculator.com.

🔧 Utilities
(21K)
18
Loan Calculator‰
Loan Calculator‰
Loan Calculator‰
Simple Loan Calculator
Free

Calculate your loans or mortgages effortlessly with this simple loan calculator app. Just input the amount, term, and rate to get quick results. Try it now!

💰 Finance
(96K)
19
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
OneCalc: All-in-one Calculator
Calculates everything. Try it.
Free

A versatile calculator app for iPhone and iPad offering over 40 calculators and unit converters for finance, health, and more. Simplify your calculations with just one app today!

📊 Productivity
(4.8K)
20
BuildersCalcsRoof
BuildersCalcsRoof
BuildersCalcsRoof
by Robert Thompson
$2.99

This application helps users calculate dimensions and angles for roofing projects, providing instant calculations for rafter lengths, overhangs, and angle cuts, making it easier to work with hip roofs. With a user-friendly interface and support for both metric and imperial units, it streamlines the process, allowing users to get accurate results quickly and efficiently.

🔧 Utilities
(8)

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