Best Digital Angle Finder in 2022 (Reviews and Comparison)

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Although a lot of people use a compass to measure the angles they need, a digital angle finder is a better option. They are easier to use and provide more accurate measurements.

Digital angle finders work by converting angles from degrees to radians or vice versa. This means that you can set them up for either US or metric units of measurement. 

Additionally, they are able to show you the angle in both degrees and radians on their screen, which helps you decide which unit of measurement will be best for your needs. 

In this article, you’ll find our top pick for the digital angle finder according to budget and purpose. Why trust us? We review products daily for our devoted readers to help them with their buying decisions. They value our honest and unbiased opinions and we really appreciate them putting their trust in us.

COMPARISON CHART

IMAGE PRODUCT
Starrett 12" Pro Site Protractor 1. Starrett 12″ Pro Site
  • Thick aluminum alloy is very durable
  • Fits in tight spaces easily
  • You can perform 5 different calculations
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BOSCH 5-in-1 Digital Angle Finder and Inclinometer GAM 270 MFL 2. Bosch GAM Digital Angle Finder
  • Display is very easy to read
  • Measurements can be saved for later use
  • Has both level and plumb function
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GemRed Digital Angle Finder Protractor (Aluminum, 200mm) 3. GemRed 200mm Digital
  • Highly readable scales
  • Beginners will be able to use the device very quickly
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General Tools T-Bevel Gauge & Protractor - Digital Angle Finder with Full LCD Display & 8" Stainless Steel Blade 4. General Tools 828 Digital Sliding T-Bevel
  • Has a tough ABS handle
  • Auto shutoff feature works nicely
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Johnson Level & Tool 1886-0000 Magnet Digital Angle Locator 5. JOHNSON LEVEL & TOOL
  • Design ensures it can be used in a wide variety of tasks
  • Small footprint means you can take it anywhere
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1. Starrett 12″ Pro Site

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Starrett 12" Pro Site Protractor

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Starrett 12" Pro Site Protractor

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Starrett 12" Pro Site Protractor

Specification

WEIGHT1.44 ounces
STYLE‎Gauge
LENGTH12 inches

The Starrett Pro Site Protractor is the best-selling digital angle finder on several sites we’ve researched. It can measure angles up to 30° with a strong 8-degree horizontal accuracy and 5-degree vertical accuracy. 

It’s the perfect way to measure any angle around your home, where you’re uncertain about the exact height or width. The 12-inch Pro Site Protractor is very easy to set up and it has a large and bright LCD screen. 

The thick aluminum body gives you a feeling of confidence in the quality of the angle finder. Some may find it hard to read the dial but we had no problems at all.

WHAT WE LIKE

The Starrette Pro is a perfect balance between features and accuracy. Features that users appreciate: 

  • It is highly accurate for measuring angles 
  • Easily set up 
  • No real learning curve 

They say you get what you pay for and in this case, it’s true. The 12″ Pro Site is a durable unit with a pleasing design that will likely last many years of usage. 

There’s a reason why this angle finder is our Editor’s Choice, and that’s because the Starrett protractor performs fantastically!

PROS

  • Thick aluminum alloy is very durable
  • Fits in tight spaces easily
  • You can perform 5 different calculations

CONS

  • Hash marks can be off sometimes so inspect when the product arrives
  • Can be hard to read depending on your application

2. Bosch GAM Digital Angle Finder – Best in Multi-Function

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BOSCH 5-in-1 Digital Angle Finder and Inclinometer GAM 270 MFL

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BOSCH 5-in-1 Digital Angle Finder and Inclinometer GAM 270 MFL

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BOSCH 5-in-1 Digital Angle Finder and Inclinometer GAM 270 MFL

Specification

WEIGHT1.44 ounces
STYLEDigital
LENGTH24 inches

The Bosch GAM Digital Angle Finder is a great choice for most. It is a digital angle finder that is easy to use, has a very large screen, and is accurate to within 0.1 degrees. 

It can measure from 0 to 180 degrees, and it is waterproof and shockproof, so it is perfect for construction sites, plumbing jobs, and many other places. The Bosch GAM is a great little device that will help you get the job done quickly and accurately.

The unit performs as it should in any of its functions – angle finder, cut calculator, protractor, or level. 

Yes, the unit is large and may be considered bulky, but we don’t care. Accuracy and durability are what count in this competition.

WHAT WE LIKE

  • You can get it with a 3-year warranty or with a 2-year warranty from Bosch
  • It has a huge level of sensitivity within 0 to 3 inches. You can even adjust it between a maximum of 7 inches, which makes it a good pick for those that need to measure a lot of angles
  • Dust and water-resistant

Although there is one negative issue that we have with the device: it’s quite bulky.

PROS

  • The display is very easy to read
  • Measurements can be saved for later use
  • Has both level and plumb function

CONS

  • Feels heavy when using
  • Measuring small, tight spaces will be a problem for this unit
  • Bulky but still quite nice

3. GemRed 200mm Digital – Best for Beginner

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GemRed Digital Angle Finder Protractor (Aluminum, 200mm)

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GemRed Digital Angle Finder Protractor (Aluminum, 200mm)

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GemRed Digital Angle Finder Protractor (Aluminum, 200mm)

Specification

WEIGHT4.2 ounces
STYLEDigital
LENGTH15.75 inches

The GemRed 200mm Digital Angle Finder is the most affordable of our picks, but you need to remember that accuracy far outweighs price when you need to get your angle measurements right. 

The GemRed’s range extends from -30 to +70. The model also has a very readable display. This is truly an angle finder that beginners will appreciate. 

It comes with a slim, ultra-light handle, and it features a long-lasting Li-Ion battery. The GemRed allows you to take (somewhat) accurate measurements.

WHAT WE LIKE

The GemRed 200mm Digital Angle Finder is equipped with LED light on the front for use during darker times. It has a 0.1-second response time so you can see the LCD at all times. 

The distance indicator on the front is long, with a black design against white lettering that is easy to see. This feature is perfect for measuring long distances in a pinch. 

The biggest letdown about this device is that it has a rather terrible quality control record. Be sure that if you wish to purchase this unit you immediately inspect it once it arrives.

PROS

  • Highly readable scales
  • Beginners will be able to use the device very quickly

CONS

  • Failure rates reported after only a few times of use
  • Some buyers feel that the unit is of cheap quality

4. General Tools 828 Digital Sliding T-Bevel – Best for Professional

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General Tools T-Bevel Gauge & Protractor - Digital Angle Finder with Full LCD Display & 8" Stainless Steel Blade

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General Tools T-Bevel Gauge & Protractor - Digital Angle Finder with Full LCD Display & 8" Stainless Steel Blade

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General Tools T-Bevel Gauge & Protractor - Digital Angle Finder with Full LCD Display & 8" Stainless Steel Blade

Specification

WEIGHT4.2 ounces
STYLEDigital
LENGTH15.75 inches

The 828 from General Tools is interesting if anything else. This digital angle finder uses a range of advanced technologies to measure angles. The unique T-bevel slider is easy to use and the device can get into tight places if needed.. 

You can set the angles that the finder measures in many different ways. Plus, with the slider, you can get additional length when needed. We especially liked the auto-shutoff feature because we know we’ve left our devices on a little too long before once too often. 

WHAT WE LIKE

The 828 T-Bevel Gauge & Digital Protractor has everything a digital angle finder needs to do the job. It comes with a precision digital ruler (8″), a t-bevel knob (1.25″), and an easy to read digital display. 

The handle of the device is formed from heavy-duty ABS plastic, so you definitely won’t need to have any concerns about breaking the device if it gets dropped.

PROS

  • Has a tough ABS handle
  • The auto shutoff feature works nicely

CONS

  • We consider this to be a “Get what you pay for” device. It’s just ‘OK’
  • Buttons feel cheap and clunky
  • Goes through batteries faster than anticipated

5. JOHNSON LEVEL & TOOL – Best in LCD Display

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Johnson Level & Tool 1886-0000 Magnet Digital Angle Locator

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Johnson Level & Tool 1886-0000 Magnet Digital Angle Locator

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Johnson Level & Tool 1886-0000 Magnet Digital Angle Locator

Specification

WEIGHT4.2 ounces
STYLEDigital
LENGTH15.75 inches

The JOHNSON LEVEL & TOOL doesn’t look like any of the others on our list. It has two buttons with different functions: the green button measures the rotational angle, and the red button measures the angular distance. 

With its simple square shape, you can either attach it to a belt or clip it where you need it. The backlight display is excellent, making it very easy to read from the device. 

It is possible to measure extremely long distances with this angle finder since it is nothing more than a box design.

WHAT WE LIKE

  • We liked the speed of the Level & Tool because it was (initially) so much faster than its competitors
  • The magnetic base is powerful and reliable 
  • It is also battery-operated, which is a huge bonus as some of the other models require plugging in
  • It also has an indicator light and three preset fields that you can use for setting your accuracy. There are three preset frequencies and the two lowest frequencies are 60° and 35°, which are perfect for measuring angles from flat surfaces
  • The side of the digital angle finder has a USB charging port so you can charge the battery when needed. This is great if you travel a lot

What lets this device down is that it gets extremely slow after a couple of times using it. Sometimes the display spits out the craziest measurements that no one can understand.

PROS

  • The design ensures it can be used in a wide variety of tasks
  • The small footprint means you can take it anywhere
  • A magnetic base lets you place the angle finder nearly anyplace

CONS

  • Sometimes the unit simply displays gibberish
  • It can be very slow to take a measurement at times

Conclusion

We hope you enjoyed this article about the best RV vent cover. Our top recommendation goes to the Starrett 12″ Pro Site Protractor

The Starrette can handle any measurement you can throw at it so you’ll be certain that you are getting an accurate angle measurement.

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