A digital protractor is an electronic tool that measures angles with unparalleled accuracy and convenience. You get a display screen on it that shows you accurate measurements instantly. But are all digital protractors the same? Not at all…they come with different features, pros and cons, applications, and obviously different prices.
In addition to that, digital protractors are very easy to use. You just have to set the protractor reading to zero and align the blades of the protractor to both surfaces. The display screen will give you the angle reading on the spot. Note that you will need an inclinometer for measuring the slope angle or surface level because a protractor can only estimate the angle between two surfaces.
Digital protractors can be used for many different purposes, including building, carpentry, plumbing, construction, engineering projects, DIY home projects, and much more. They can make your task of accurate angle measurement much easier, but only if you choose the right product. It will definitely save you time and effort and will also be an excellent value for your money.
That’s what we are here for. We will give a list of detailed reviews of the top quality, reliable digital protractors trusted by professionals, along with a buying guide to help you get the right product.
Top 10 Best Digital Protractors in 2023
1. Mitutoyo 187-552 Digital Bevel Protractor [Most Accurate]
Whether you are a machinist or a woodworker, a digital bevel protractor that offers you very high accuracy can never be a wrong choice. For those reasons, we have the Mitutoyo 187-552 digital bevel protractor at the top of the list.
This incredible protractor comes with 12-inch stainless steel blades that are resistant to corrosion. You get on/off button, zero button, preset button and hold screen feature on the protractor. You also get a data output function for the statistical recording of data. The protractor is powered by a CR2032 lithium battery which lasts up to 2000 hours.
Mitutoyo 187-552 Digital Bevel Protractor is superior in terms of accuracy. It offers you an accuracy of up to 2 minutes of arc and resolution of up to 1 minute of arc. Another thing about this precision instrument is it gives you dust and water protection of up to IP40 rating. For applications, it is ideal for crown moulding and installing baseboards.
- High Accuracy
- Removable and lockable blades
- It can be measured in both degrees and minutes
- Can be attached to height gage for additional measuring capacity
2. BOSCH GAM 220 MF Digital Angle Finder (4 in 1)
Bosch digital angle finder is the ultimate choice if you are looking for a device that serves the purpose of multiple tools. You can use this device as an angle finder, mitre calculator, protractor and a level too. In addition to being diverse, this device does not compromise on output quality.
It offers IP54 protections, which means it is resistant to water and dust. You get a robust body with a hold function and mechanical lock function that allows you to record readings and transfer them without losing accuracy. It is powered by 1.5 volts AA batteries which are included in the package.
The Bosch angle finder gives you the accuracy of ±0.1 degrees up to 220 degrees. It is ideal for carpenters, remodelers and contractors. You also get a thermoformed case and leg extension in the package.
- Illuminated flip display
- Easy to use
- Clearly labelled buttons
- Provides angle memory
- A bit heavy
3. STABILA 39018 Digital Inclinometer 18″
A lot of features and functions are great, but for certain kinds of projects, you just need a simple and minimal device that is easy to use and serves the purpose. And Stabila 39018 digital inclinometer is one such device. It is a sturdy 11-inch tool that offers a range of 0-270 degrees.
The display of the Stabila 39018 shows enlarged digits with light that can be enhanced and dimmed. In this device, you get a locking function that allows you to lock at a certain angle and transfer the angle. You also get a reference function that can accept, save and transfer the angles to other components.
- Comes with IP54 protection
- Displays angle bisectors
- High accuracy up to ± 0.1 degrees
- Auto switch off after 60 minutes of inactivity
- Offers lesser features
4. Wixey WR412 Digital Protractor
The Wixey Digital Protractor WR412 is another very classic and minimal digital protractor that comes with stainless steel blades. As it comes with mitre functions, it is ideal for carpentry and plumbers and other tasks that require measuring angles and transferring them.
One of the amazing features of this device is that it comes with strong magnets on all the edges of the blades, which makes aligning it much easier for you. For holding angle measurements, you can tighten them and transfer them very quickly. On the protractor, you get a display along with on/off, zero and set mitre buttons. It offers you a range of ± 180 degrees with an accuracy of ± 0.1 degrees.
- Strong embedded magnets
- Includes batteries
- Easy to use
- Affordable price
- Comparatively shorter range
5. Neoteck Aluminum Digital Angle Finder
A good-quality digital protractor with some excellent features can help you get through many projects without much effort. The Neoteck Aluminum Digital angle finder is a very efficient device with two spirit levels (note that the levels are not digital). Along with that, you get an LCD that is backlit, a hold function and a lock knob.
The Neoteck digital angle finder offers you high accuracy. It has a very delicate and modern design and gives you a range of 225 degrees with an accuracy of ±0.5 degrees. You also get a hold button which conveniently holds the angle for you without the effort of tightening the knob. This device is ideal for DIYs and home projects.
- Multiple features
- Affordable price
- Backlit LCD
- Comes with a long-lasting 9 volts battery
- Comparatively shorter range
6. General Tools 822 Digital Angle Finder Ruler 5″
If you need a smaller protractor, this 5-inch General Tools 822 Digital protractor can be your choice. Nicely, its blades come with graduation so you can easily draw lines or measure the surface length. You get a knob on one side that allows you to hold the angle. This digital protractor has a very minimalistic design and hence is suitable for carpentry and minor projects. It is also good for crown moulding and custom cuts.
It also features a reverse angle function for convenience. In addition, it helps you find both interior and exterior angles within no time. The General Tool digital angle finder offers you a wide range of 360 degrees with an accuracy of ± 0.3 degrees. As it is small, it gives you accurate measurements even in small places.
- Stainless steel blades
- The notch allows the exact making of angles
- Offers complete 360 degrees range
- Easy to use
- Lacks diverse features
7. General Tools 828 T-Bevel Gauge & Protractor
We can say that this is the best digital protractor for woodworking. If you need a protractor that its blade length is adjustable, you can pick this one. Still from the same brand, this General Tools 828 is a pretty long 8-inch digital protractor that comes with a T-bevel blade. The sliding bevel allows easy transfer of angles. On the protractor, you get on/off, reading hold, read reverse, flip display and clear readout buttons.
The measurement range of this digital protractor is from 0 to 360°, with an accuracy of ±0.3°. The resolution of this digital protractor is awesome which is 0.05°. Moreover, the blade length is 8″.
It is powered by a very long-lasting lithium battery. The features make it ideal for wood projects such as cabinetry, picture frames and furniture.
- Sturdy impact-resistant ABS handle
- 360-degree range
- Comes with a locking screw to lock angles
- Not very accurate
8. GemRed 82305 Digital Angle Finder Protractor 7″
Next on the list, we have the GemRed 82305 Digital Protractor. It is an 8-inch two-in-one tool as the blades come with graduation, which means it can be used as a ruler too. The blades of the protractor are made from stainless steel and are very durable too. You get a display unit with a very minimal design and an on/off button, and a zero button.
It is a pretty simple device that can serve the purpose of an angle finder and a ruler. You can easily use it to measure inner and outer angles. It offers you an accuracy of ± 0.3 degrees with a resolution of 0.1 degree and is ideal for sketching, drawing, crown molding, and woodworking.
- Easy to use
- Laser etched measurements
- Sharp edges
9. Proster LCD Digital Protractor
Proster LCD Digital protractor is a device that not only offers you many features but also comes with a modern and elegant design which means that it will be an aesthetic addition to your toolbox. Not to forget that along with its sleek design, it also offers you high accuracy and a lot of useful features.
You get two bubble levels on the protractor that are pretty accurate. Along with those, you get a data holding feature and a mechanical lock system. It offers you a range of 225 degrees with an accuracy of 0.5 degrees which makes a decent choice for measuring angles for trays, sloping roofs, handrails and other woodwork projects.
- Auto shutdown after 5 minutes of inactivity
- Long-lasting battery life
- Backlit LCD
- Lesser resolution
10. iGaging 35-408 Digital Protractor (10″)
If you are in search of a digital protractor that is simple and minimal yet comes with long arms, the iGaging 35-408 can be a decent choice as it has a blade length of about 10 inches. The blades are made from stainless steel.
You get a large LCD for displaying measurements along with a knob that allows you to hold angles. It offers you a full range of 360 degrees with an accuracy of ±0.2 degrees. Nicely, the smallest reading (the resolution it can display on the LCD) is great which is down to 0.05 degree.
The battery has been included when buying. In case of replacement, you could prepare the battery CR2032 which is easy to get.
Another great feature is the buttons. There are 3 buttons: on/off, zero, and hold/reverse. The zero button lets you turn the reading to be zero (0 degree) at any angle you want. While the hold/reverse button allows you to hold the reading although you swing the ruler.
If you need the longer one, pick the 14-inch model iGaging 35-412.
- Easy to use
- Minimal design
- Sturdy and well-calibrated blades
- Sharp edges
Things to Consider Buying Digital Protractor
There are a few things that you need to consider while choosing a digital protractor:
1. Accuracy, Resolution, and Range
First of all, you need to see how accurate the protractor is. The more precise the protractor is, the better the results. Its accuracy should not vary more than ± 0.1 degrees. Also, check the resolution and range of the digital protractor so you can minimize the chances of getting errors.
The next thing that you need to keep in mind is its use. If you want to use it for engineering projects or machine making, go for the one with magnetic blades. That way, you can align the protractor easily. If you want to use it for DIYs, woodwork and carpentry, then there’s no need for magnetic blades.
3. Advance features
If you want to use the protractor for small and domestic projects, then there’s no need for advanced features and buying a minimal and easy-to-use device will save you a lot of money. Alternatively, if you are a professional and need it for more extensive and more complicated projects, advanced features such as wireless measurement, device memory and storage, and its compatibility with other devices will make your job much easier.
So, this brings us to the ending of the guide. We hope that you found this article very informative and got to know a lot about digital protractors. You can use the buying guide to select the right product for yourself. If you are still unsure about which one you should get, we have some recommendations for you based on our research.
The best overall digital protractor would be the Mitutoyo 187-552 Digital Bevel Protractor due to its high accuracy and wide range. You can use this protractor for any kind of work as there are no limitations. Lastly, if you are looking for a protractor that offers multiple features for small projects, then you should go for the BOSCH Digital Angle Finder, as this device provides pretty diverse functionalities.
Lastly, if you want a minimal digital protractor that is very simple to use, then you should get the Wixey WR412 Digital Protractor as it is ideal for carpentry, plumbing, DIYs and much more.