We have spent around 50 hours to find the right option for you and based on our research General Tools 29 Plastic Protractor and Angle Finder, Outside, Inside, Sloped Angles, 0° to 180° is our top pick for you. This is one of the best products currently available in the market. However, if you don’t want to spend extra then we have another great option for you is General Tools 17 Square Head Stainless Steel Angle Protractor, 0 to 180 Degrees, 6-Inch Arm. Below is a review of some of the best construction protractor, together with their specifications and functions. So, let’s Get Started!
Best construction protractor

Buy Now

Buy Now

Buy Now

Buy Now
GemRed Digital Angle Finder Protractor (Stainless steel, 7inch/200mm)
GemRed Digital Angle Finder Protractor (Stainless steel, 7inch/200mm)
$19.99 in stock
Features
- PATENTED MEASURING TECHNOLOGY -- Ruler and protractor combination for easy measuring inside and outside angles.
- DURABLE RULERS -- Well-made stainless steel rulers and laser etched measurements offer clear reading and years' usage.
- HIGH ACCURACY -- Accuracy of this protractor is ±0.3 degree. It is a good choice for most projects like woodworking, crown molding and daily use. Folded length: about 7.5 inch/220mm.Total length 400mm.
- LOCKING FUNCTION -- For read it easily, GemRed angle finder could be locked at any angle. *NO REVERSE ANGLE/DISPLAY FUNCTION.
- BATTERY -- CR2032 battery. Package contains battery.
General Tools 822 Digital Angle Finder Rule, 5-Inch
General Tools 822 Digital Angle Finder Rule, 5-Inch
$17.53 out of stock
6 used from $15.75
Features
- PREVENT WASTE: This digital 5” stainless-steel ruler and angle finder combination tool makes precise, easy and fast measurements.
- CORNER ANGLE FINDER: Digital angle gauge includes an LCD reader, makings measurements easy to read, while the innovative center check notch enables exact ruler placement markings. Use the electric meter for custom cuts and crown molding.
- LEVEL RULER: This tool is ideal for finding angles in tight spots, and with the lock feature, the user can improve accuracy and save time when finding the measurement. It's perfect for doing work on framing, custom furniture building, and flooring.
- PROTRACTOR WITH SWING ARM: Our stainless steel digital angle finder with measuring ruler has a built-in reverse angle function for usability and convenience. It's an essential tool and a great gift idea for a fellow carpenter, student, or machinist.
- GENERAL TOOLS: We're a recognized leader in designing and developing specialized precision tools dedicated to delivering exceptional customer service. We encourage artisans and DIYers to work smarter, measure better, and repair more productively.
General Tools 29 Plastic Protractor and Angle Finder, Outside, Inside, Sloped Angles, 0° to 180°
General Tools 29 Plastic Protractor and Angle Finder, Outside, Inside, Sloped Angles, 0° to 180°
Features
- INSIDE, OUTSIDE AND SLOPED ANGLES - this plastic protractor/angle finder measures inside, outside and slope angles.
- FOUR PIECE STURDY DESIGN – with brass lock nut
- TRANSFER ANGLES – with this plastic protractor, you can transfer odd angles to your miter saw
- FINE BLACK GRADUATIONS – from 0° to 180° in opposite directions
- VARIOUS PROJECTS – protractor/angle finder is ideal for construction jobs, cabinet-making and fine carpentry, where a standard protractor or t-bevel won't fit
General Tools 17 Square Head Stainless Steel Angle Protractor, 0 to 180 Degrees, 6-Inch Arm
General Tools 17 Square Head Stainless Steel Angle Protractor, 0 to 180 Degrees, 6-Inch Arm
$13.39 in stock
Features
- PROTRACTOR ARM: It's constructed of durable stainless steel and features a 6" adjustable arm for setting the bevel, transferring angles, and finding your measurement. It's an essential tool and gift idea for a fellow carpenter, student, or machinist.
- CONSTRUCTION PROTRACTORS: This square head protractor has a 0 to 180-degree semi-circle scale in forward and reverses directions to measure all angles on the job. The 3-3/8" x 2" head helps anchor the protractor against objects to hold it in place.
- ANGLE FINDER: Quickly and easily identify your angles with our rust-resistant measuring compass. The metal arm locks into place with a knurled thumb nut, allowing you to gauge the measurement of the inclination accurately.
- MEASUREMENT TOOLS: The project possibilities are endless when using our high-quality square-head protractor tool. You can master the art of building new cabinets, tables, chairs, wooden desks, framing, and various furniture makings.
- GENERAL TOOLS: We're a recognized leader in designing and developing specialized precision tools dedicated to delivering exceptional customer service. We encourage artisans and DIYers to work smarter, measure better, and repair more productively.
Swanson Tool S0101 7-inch Speed Square Layout Tool with Blue Book
Swanson Tool S0101 7-inch Speed Square Layout Tool with Blue Book
$9.98 in stock
Features
- MULTIPLE GRADATIONS: Make the exact mark you need! Gradations Included For Marking Common, Hip, Valley, And Jack Rafters; Useful For Determining And Marking Angles And Making Square Cuts On Boards
- FEATURES: Pocket-Sized Swanson Blue Book, A Comprehensive Guide To Help Workers Make Correct Angle Cuts For Any Pitched Roof, and it includes pages of inch rise per foot run data - meaning you don't have to do the math.
- INCLUDES: Features Common To 5 Different Tools (Try Square, Miter Square, Saw Guide, Line Scriber, And Protractor) Making The Speed Square Something That Belongs On Every Tradesman'S Tool Bench
- EASY TO USE: 1/4-In Spaced Scribing Notches And The Diamond Cutout For Easy Rafter Seat Cuts And Scribing The Most Common And Popular Stud Widths, and Black gradations against its non-glare, matte finish make for easy reading in any lighting conditions
- MADE IN USA: The Speed Square, made in the USA since 1925, is essential for every carpenter, construction professional, roofer, and DIYer
Starrett ProSite Miter Saw Protractor
Starrett ProSite Miter Saw Protractor
Features
- Accurate Measurements - Eliminates error-prone calculations by providing precise miter and single cut readings directly from the workpiece to your miter saw.
- Durable Construction - Crafted from hardened plastic, ensuring longevity and resilience in various working conditions.
- Easy-to-Read Scales - Features 2 laser-engraved scales: the miter cut scale for accurate miter joints and the single cut scale for fitting single pieces to angles.
- Compact and Lightweight - Designed for convenience, its 7-inch size and lightweight construction make it easy to carry and use on-site, in workshops, or for home projects.
- Versatile Application - Ideal for carpentry, plumbing, and all building trades requiring the measuring and transferring of angles; invaluable for home use and DIY projects.
Bosch 4-in-1 Digital Angle Finder GAM 220 MF
Bosch 4-in-1 Digital Angle Finder GAM 220 MF
$161.86 in stock
Features
- FOUR TOOLS IN ONE: The Bosch GAM 220 MF can be used as a angle finder, miter calculator, protractor and level.
- MEMORY: The angle finder provides angle memory, to provide the same angle measurement in different areas of the jobsite.
- DISPLAY: Easy-to-read illuminated, rotating flip display. The miter cut calculation has an input measurement from 0-220 degrees.
- DURABLE: Features robust housing with IP54 protection, making the angle finder water and dust resistant.
- LEG EXTENSION: The angle finder is extendable up to 16 inches long.
General Tools 823 Digital Angle Finder Rule, 10-Inch
General Tools 823 Digital Angle Finder Rule, 10-Inch
$33.59 out of stock
Features
- LARGE LED SCREEN: This digital ruler makes precise, easy, and fast measurements. It has a large, easy-to-read display with an accuracy of 0.3 degrees and a full 360-degree range, allowing it to measure interior, exterior, and reverse angles.
- LOCK IT AND REVERSE IT: Place the digital angle gauge where you need to measure, lock it, and make your cut. It will automatically show the reverse angle, and the display has a hold function to stop the movement for accuracy.
- MEASURES 360-DEGREES: Our carpenter tools are perfect for finding angles in tight spots and ideal for crown moldings, custom cuts, and other overhead work. It can be zeroed at any point in the swing, and the display can be inverted for easy reading.
- PREVENT WASTE: With stainless steel construction, you can count on this durable tool to withstand hours of use and facilitate exact miter cuts, minimizing debris. It requires a CR2032 Lithium-ion battery (included).
- GENERAL TOOLS: We have been a recognized leader in the innovation, design, and development of specialized precision tools for many years. We encourage craftspeople, artisans, and DIYers to work smarter, measure better, and increase productivity.
Miter Saw Protractor replace the model #505P-7 for carpenters, plumbers and all building trades also invaluable for home use and do-it-yourselfers.
Miter Saw Protractor replace the model #505P-7 for carpenters, plumbers and all building trades also invaluable for home use and do-it-yourselfers.
Features
- Simple reading: the bevel scale transmits the reading directly to the miter saw, and the single cut scale transmits the reading directly to the butt joint of the miter saw. Both upside and backward readings are correct.
- Include instructions: include compound cut comversion table.
- Accurate scale: laser engraved dial, the scale is even and accurate.
- Sturdy material: made of ABS plastic, will not rust, easier to store, very suitable for plumbers and construction industries.
- Separate packaging: flocking packaging is included, which is easy to carry and avoid scratches on the dial caused by place with other tools.
Neoteck Aluminum Digital Angle Finder Protractor 225° 16 inch Backlit LCD Digital with Horizontal and Vertical Bubble – Black
Neoteck Aluminum Digital Angle Finder Protractor 225° 16 inch Backlit LCD Digital with Horizontal and Vertical Bubble - Black
Features
- 【Digital Angle Finder Protractor】 with High Accuracy, Delicate Design and Modern Appearance, An Interior Designer Should Have!
- 【High Accuracy】 Angle Range is 0-225°, Measuring precision: ±0.5°, Increase/Decrease Angle: 0.1°
- 【Data Hold】If You Want to Use Data Holding Function, You Need to Press the HOLD Button in Red rather than Twist the Knob. (The Knob is Just for Loosening and Tightening. It Can't Hold the Angle Firm Completely!)
- 【Backlit LCD Display】 Come with Backlit LED Display Which Makes it Possible to Read the Data Clearly, Even under a Low Light Circumstance
- 【With Horizontal and Vertical Bubble Level】 It Also Can Be Used Like a Spirit Level, Helping You to Check and Calibrate (NOTE: It is NOT a Digital Level. Will Not Display a Number on LCD, Just Only Assist You to Judge If It Is Horizontal / Vertical or Not)
In this article, we have reviewed the best construction protractor for our readers. We hope you get the perfect construction protractor from our above list. If you didn’t find your desired one then check out General Tools 29 Plastic Protractor and Angle Finder, Outside, Inside, Sloped Angles, 0° to 180° one of the most valuable items in the market.