# Best Laser Measures for Home Projects (2026) Six laser measures ranked on published specs for measuring rooms, slabs and roofs, with one room run through the floor, paint and drywall calculators. Buying guide page: (published 2026-10-06, updated 2026-10-06). This Markdown version has the picks, how they were ranked, their published specs and the figures behind them; product links and the full article are on the page. ## Key takeaways - For rooms, any of these picks is accurate enough: a 1/16 in error on both readings of a 14 × 12 ft room moves its floor area by at most 0.14 sq ft, against a 53.4 sq ft drywall allowance. - Choose on functions and conditions instead: area, volume and indirect functions, a tilt sensor for roof angles, Bluetooth, and a green beam or a camera for outdoor work in daylight. - Three readings measure a room for the calculators: length, width and wall height give 168 sq ft of floor, 366 sq ft of wall to paint and 19 sheets of 4 × 8 ft drywall. - Picks are ranked on the makers' published specs for home measuring jobs, not on our own use of them. ## In this guide 1. [Quick picks](https://www.howmanyyardsdoineed.com/best/laser-measures/#quick-picks) 2. [How we chose](https://www.howmanyyardsdoineed.com/best/laser-measures/#methodology) 3. [The picks in detail](https://www.howmanyyardsdoineed.com/best/laser-measures/#picks) 4. [Spec comparison](https://www.howmanyyardsdoineed.com/best/laser-measures/#comparison) 5. [What to look for in a laser measure](https://www.howmanyyardsdoineed.com/best/laser-measures/#what-to-look-for) 6. [Measuring a room, a slab and a roof for the calculators](https://www.howmanyyardsdoineed.com/best/laser-measures/#measuring-for-the-calculators) 7. [How accurate does a laser measure need to be?](https://www.howmanyyardsdoineed.com/best/laser-measures/#how-accurate) 8. [Frequently asked questions](https://www.howmanyyardsdoineed.com/best/laser-measures/#faq) ## Quick picks **Quick picks, in rank order** | Rank | Pick | Best for | Range | Accuracy | | --- | --- | --- | --- | --- | | 1 | Bosch GLM165-27CGL BLAZE Connected Green-Beam 165 ft Laser Measure | Best overall for rooms, slabs and roofs | Up to 165 ft | ±1/16 in | | 2 | DEWALT DWHT77200 200 ft. Laser Distance Measurer | Best for paint and drywall math on the tool | Up to 200 ft (60 m) | ±1/16 in at 32 ft | | 3 | Bosch GLM400CL BLAZE Outdoor 400 ft Connected Laser Measure with Camera | Best for outdoor measuring in daylight | Up to 400 ft | ±1/16 in | | 4 | Milwaukee 48-22-9803 330 ft Laser Distance Meter | Best for long, level runs without a phone | Up to 330 ft | ±1/16 in | | 5 | Bosch GLM165-40 BLAZE Pro 165 ft Laser Measure | Best pocket-size measure with area and volume | Up to 165 ft | ±1/16 in | | 6 | Klein Tools 93LDM100C Compact Laser Distance Measurer | Best for simple length readings | 2 in to 100 ft (5.1 cm to 30.5 m) | ±1/16 in up to 33 ft; ±1/8 in up to 100 ft | ## How we chose Ranked on published manufacturer specs and features for measuring rooms, slabs and roofs for home-project material estimates; not hands-on tested. Every spec is quoted from the maker's product page or manual and was checked on 2026-10-06. No prices or ratings are shown; the order is a judgment on these criteria: 1. **Area, volume and indirect functions.** Built-in area and volume math saves a step when you measure many rooms, and indirect functions work out a height or length you cannot reach, from a right triangle of readings. 2. **Tilt sensor (angle measurement).** A tilt sensor reads a slope's angle directly, such as a rafter's, which is the number you need for a roof's pitch and its sloped length. 3. **Range for the job.** Rooms need a fraction of any pick's range. Long outdoor runs, such as a lot line, a driveway or the side of a house, need a longer range and a way to see the dot in daylight. 4. **Published accuracy.** Every pick publishes ±1/16 in for room-length readings, so accuracy separates them less than functions do. We favor makers that state the distance their figure holds to. 5. **Bluetooth.** Sending readings to a phone app saves copying a list of room dimensions by hand, and keeps them with notes and photos of the job. 6. **Dust and water protection.** A published IP rating means the maker rates the case against dust and water, which matters on a job site and outdoors. ## The picks in detail ### 1. Best overall for rooms, slabs and roofs: Bosch GLM165-27CGL **Bosch GLM165-27CGL BLAZE Connected Green-Beam 165 ft Laser Measure.** It covers every measuring job on this site: area, volume and indirect measurements with add and subtract, a 165 ft range at a published ±1/16 in, and an inclinometer that reads tilt up to 360°, so it gives a rafter's angle directly. Bluetooth 4.2 sends readings to Bosch's MeasureOn app, and it is the only pick rated IP65. Its green beam, which Bosch says is up to 4× brighter than a standard red one, is easier to see outdoors. It runs on an included 3.7 V lithium-ion pack. Ranked on: area, volume and indirect functions, tilt sensor (angle measurement), published accuracy, bluetooth, dust and water protection, range for the job. - Range: Up to 165 ft - Accuracy: ±1/16 in - Functions: Distance, area, volume and indirect; add/subtract - Angle measurement: Inclinometer, up to 360° - Data transfer: Bluetooth 4.2 (Bosch MeasureOn app) - Beam: Green, up to 4× brighter than a standard red beam - Protection: IP65 - Batteries: 3.7 V 1.0 Ah lithium-ion pack (included) - Weight: 0.22 lb Specs from [Bosch BLAZE Connected Green-Beam 165 Ft. Laser Measure (GLM165-27CGL) product page](https://www.boschtools.com/us/en/products/glm165-27cgl-0601072U14) (checked 2026-10-06). ### 2. Best for paint and drywall math on the tool: DEWALT DWHT77200 **DEWALT DWHT77200 200 ft. Laser Distance Measurer.** Its functions include wall area as well as area, volume and indirect height, the measurements the paint and drywall calculators start from, on a backlit color display. DEWALT publishes ±1/16 in at 32 ft, a 200 ft range and IP54 protection. DEWALT publishes no Bluetooth or angle reading for it, and its 2 AA batteries are not included. Ranked on: area, volume and indirect functions, published accuracy, range for the job, dust and water protection. - Range: Up to 200 ft (60 m) - Accuracy: ±1/16 in at 32 ft - Functions: Distance, area, wall area, volume and indirect height - Display: Backlit color - Protection: IP54 - Batteries: 2 × AA (not included) - Weight: 4.05 oz (115 g) with batteries - Warranty: 3-year limited, 1-year free service, 90-day satisfaction Specs from [DEWALT 200 ft. Alkaline Laser Distance Measurer (DWHT77200) product page](https://www.dewalt.com/en-us/product/dwht77200/200-ft-alkaline-laser-distance-measurer), [DEWALT DWHT77200 laser distance measurer instruction manual (PDF)](https://assets.dewalt.com/GLOBALBOM/QU/DWHT77200/1/Instruction_Manual/EN/NA645793_DWHT77200_NA.pdf) (checked 2026-10-06). ### 3. Best for outdoor measuring in daylight: Bosch GLM400CL **Bosch GLM400CL BLAZE Outdoor 400 ft Connected Laser Measure with Camera.** A zoom camera finds the laser spot at long distances outdoors, where a dot is hard to see, and its 400 ft range is the longest of these picks, at a published ±1/16 in. It has the same kinds of functions as the top pick, an inclinometer (360°) and Bluetooth, and shows the last 50 measurements. It is IP54-protected and runs on a built-in, rechargeable 3.6 V battery. Ranked on: range for the job, tilt sensor (angle measurement), bluetooth, area, volume and indirect functions, published accuracy. - Range: Up to 400 ft - Accuracy: ±1/16 in - Functions: Distance, area, volume and indirect; add/subtract - Angle measurement: Inclinometer, 360° - Data transfer: Bluetooth (Bosch MeasureOn app) - Camera: Zoom camera to find the laser spot outdoors - Memory: Last 50 measurements - Protection: IP54 - Batteries: 3.6 V lithium-ion, built in, rechargeable - Weight: 0.46 lb Specs from [Bosch BLAZE Outdoor 400 Ft. Connected Lithium-Ion Laser Measure with Camera (GLM400CL) product page](https://www.boschtools.com/us/en/products/glm400cl-0601072F13) (checked 2026-10-06). ### 4. Best for long, level runs without a phone: Milwaukee 48-22-9803 **Milwaukee 48-22-9803 330 ft Laser Distance Meter.** A 330 ft range and a digital auto-level, which takes the reading when the meter is level, suit long horizontal runs such as a driveway or a lot line, and its digital level also shows the angle. It calculates area, volume, and indirect height and length, and has a 2 in color screen and IP54 protection. Milwaukee publishes ±1/16 in accuracy and no Bluetooth for it. Ranked on: range for the job, area, volume and indirect functions, tilt sensor (angle measurement), published accuracy, dust and water protection. - Range: Up to 330 ft - Accuracy: ±1/16 in - Functions: Distance, area, volume and indirect height and length; add/subtract - Angle measurement: Digital level with angle readout - Leveling: Digital auto-level - Display: 2 in color screen - Protection: IP54 - Batteries: 2 × AAA Specs from [Milwaukee 330' Laser Distance Meter (48-22-9803) product page](https://www.milwaukeetool.com/products/details/330-laser-distance-meter/48-22-9803), [Milwaukee 48-22-9802 and 48-22-9803 laser distance meter operator's manual (PDF)](https://documents.milwaukeetool.com/58-14-0858d2.pdf) (checked 2026-10-06). ### 5. Best pocket-size measure with area and volume: Bosch GLM165-40 **Bosch GLM165-40 BLAZE Pro 165 ft Laser Measure.** A pocket-sized 0.39 lb measure that still reaches 165 ft at a published ±1/16 in, with area (square footage), volume and indirect functions, add and subtract, and storage for 10 measurements. It is IP54-protected and runs on 2 AAA batteries. Bosch publishes no Bluetooth or tilt sensor for it. Ranked on: area, volume and indirect functions, published accuracy, dust and water protection. - Range: Up to 165 ft - Accuracy: ±1/16 in - Functions: Distance, area (square footage), volume and indirect; add/subtract - Memory: 10 measurements - Protection: IP54 - Batteries: 2 × AAA - Weight: 0.39 lb Specs from [Bosch BLAZE Pro 165 Ft. Laser Measure (GLM165-40) product page](https://www.boschtools.com/us/en/products/glm165-40-0601072916) (checked 2026-10-06). ### 6. Best for simple length readings: Klein Tools 93LDM100C **Klein Tools 93LDM100C Compact Laser Distance Measurer.** At 2.3 oz it is the lightest pick that publishes a weight. It measures length only, from 2 in to 100 ft, in inches, feet and inches, or meters, and Klein publishes ±1/16 in up to 33 ft and ±1/8 in up to 100 ft, which covers any room. With no area or volume functions, you enter the readings in the calculators instead. Ranked on: published accuracy, range for the job. - Range: 2 in to 100 ft (5.1 cm to 30.5 m) - Accuracy: ±1/16 in up to 33 ft; ±1/8 in up to 100 ft - Functions: Length only; inches, feet and inches, or meters - Batteries: 2 × AAA - Protection: IP54 - Weight: 2.3 oz (65 g) Specs from [Klein Tools Compact Laser Distance Measurer (93LDM100C) product page](https://www.kleintools.com/catalog/laser-distance-measures/compact-laser-distance-measurer) (checked 2026-10-06). ## Spec comparison **Published specs of each pick** | Pick | Range | Accuracy | Functions | Angle measurement | Data transfer | Protection | Batteries | | --- | --- | --- | --- | --- | --- | --- | --- | | 1. Bosch GLM165-27CGL | Up to 165 ft | ±1/16 in | Distance, area, volume and indirect; add/subtract | Inclinometer, up to 360° | Bluetooth 4.2 (Bosch MeasureOn app) | IP65 | 3.7 V 1.0 Ah lithium-ion pack (included) | | 2. DEWALT DWHT77200 | Up to 200 ft (60 m) | ±1/16 in at 32 ft | Distance, area, wall area, volume and indirect height | Not published | Not published | IP54 | 2 × AA (not included) | | 3. Bosch GLM400CL | Up to 400 ft | ±1/16 in | Distance, area, volume and indirect; add/subtract | Inclinometer, 360° | Bluetooth (Bosch MeasureOn app) | IP54 | 3.6 V lithium-ion, built in, rechargeable | | 4. Milwaukee 48-22-9803 | Up to 330 ft | ±1/16 in | Distance, area, volume and indirect height and length; add/subtract | Digital level with angle readout | Not published | IP54 | 2 × AAA | | 5. Bosch GLM165-40 | Up to 165 ft | ±1/16 in | Distance, area (square footage), volume and indirect; add/subtract | Not published | Not published | IP54 | 2 × AAA | | 6. Klein Tools 93LDM100C | 2 in to 100 ft (5.1 cm to 30.5 m) | ±1/16 in up to 33 ft; ±1/8 in up to 100 ft | Length only; inches, feet and inches, or meters | Not published | Not published | IP54 | 2 × AAA | “Not published” means the maker's page or manual does not state it. ## Figures behind the picks Computed with this site's calculators; the page shows the working. - Room floor, 14 × 12 ft (square footage calculator): 168 sq ft - Walls, 52 ft around × 8 ft high, less 50 sq ft of doors and windows (paint calculator): 366 sq ft; 1.83 gal for 2 coats at 400 sq ft/gal, so 2 × 1-gallon cans - Walls and ceiling, less 50 sq ft of openings, plus 10% (drywall calculator): 534 sq ft net; 19 sheets of 4 × 8 ft - The same floor with both readings 1/16 in long: 168.14 sq ft (0.14 sq ft more, 0.08%) - The drywall calculator's 10% allowance on that room: 53.4 sq ft - Concrete slab 10 × 10 ft, 4 in thick, 10% allowance (concrete calculator): 1.36 cu yd - Roof at 6 in of rise per 12 in of run (roof pitch calculator): 26.6° on a tilt sensor; a 14 ft run is 15.65 ft along the slope ## Frequently asked questions ### How accurate are laser distance measures? All six picks publish ±1/16 in for room-length readings; DEWALT states it at 32 ft, and Klein's figure holds to 33 ft and becomes ±1/8 in out to 100 ft. On a 14 × 12 ft room, both readings 1/16 in long add 0.14 sq ft to the floor, 0.08% of it. ### Can a laser measure calculate square footage? Five of the six picks have an area function that multiplies two readings, and most also do volume. The Klein 93LDM100C measures length only, so you enter its readings in the square footage calculator, which also adds and subtracts shapes for L-shaped rooms. ### Do laser measures work outdoors? Yes, but the dot is harder to see in daylight, so the usable distance outdoors can be shorter than the published range. Bosch says its green beam is up to 4× brighter than a standard red one, and the GLM400CL has a zoom camera to find the spot at long distances. ### How do I measure roof pitch with a laser measure? Lay a measure with a tilt sensor along a rafter, for example from the attic, and read the angle: a roof that rises 6 in per 12 in of run reads 26.6°. The roof pitch calculator works from rise and run, and turns a 14 ft horizontal run on that roof into 15.65 ft along the slope. ### Do I need Bluetooth on a laser measure? Only if you want readings in an app. The two Bluetooth picks send measurements to Bosch's MeasureOn app, which keeps them with floor plans, photos and notes. For a few rooms, writing the readings down and entering them in the calculators works as well. ### Did you test these laser measures? No. They are ranked on each manufacturer's published specs for measuring rooms, slabs and roofs, and every spec on this page links to the maker's own page or manual. The room, slab and roof figures are computed with this site's calculators. ## Related calculators and guides ### Calculators - [Square Footage Calculator](https://www.howmanyyardsdoineed.com/square-footage-calculator/) — Total area in square feet, square meters, square yards, and acres from rectangles, triangles, circles, and trapezoids, minus cut-outs. - [Paint Calculator](https://www.howmanyyardsdoineed.com/paint-calculator/) — Gallons or liters of paint for your walls and number of coats, using the coverage printed on your paint's label. - [Drywall Calculator](https://www.howmanyyardsdoineed.com/drywall-calculator/) — Drywall sheet count for walls and ceilings from room dimensions or total area, minus openings, by sheet size. - [Concrete Calculator](https://www.howmanyyardsdoineed.com/concrete-calculator/) — Slab volume in cubic feet, cubic yards, and cubic meters, with ready-mix order size and bag counts for documented products. - [Roof Pitch Calculator](https://www.howmanyyardsdoineed.com/roof-pitch-calculator/) — Pitch as x/12, roof angle in degrees, slope percentage, and the sloped length for a given horizontal run. ### Guides - [How to Measure a Room for Paint and Drywall](https://www.howmanyyardsdoineed.com/guides/how-to-measure-a-room-for-paint-and-drywall/) — Measure each wall and ceiling, subtract openings, handle gables, slopes, and stairwells, and keep it all on one sheet. - [How to Measure an Irregular Area](https://www.howmanyyardsdoineed.com/guides/measuring-irregular-areas/) — Split odd shapes into rectangles, triangles, circles, and trapezoids, then average width and depth. - [How to Measure Roof Pitch](https://www.howmanyyardsdoineed.com/guides/how-to-measure-roof-pitch/) — Measure rise over 12 in of run from the attic or roof, read an angle, or work it out from plans, then convert. ## Sources - [Benjamin Moore Regal Select Interior Paint & Primer, Eggshell (N549) technical data sheet](https://media.benjaminmoore.com/WebServices/prod/assets/stage/datasheets/TDS_0549/N549_TDS_US.pdf) — Benjamin Moore & Co.. Used for: 400–450 sq ft per gallon at the recommended film thickness. Checked 2026-10-03. - [USG Sheetrock Brand UltraLight Panels submittal sheet (WB2501)](https://www.usg.com/content/dam/USG/pdpmovedocuments/sheetrock-ultralight-panels-submittal-en-wb2501.pdf) — USG Corporation. Used for: Width 4 ft or 54 in; lengths 8–16 ft. Checked 2026-10-03. **Estimate only.** Results are planning estimates computed from the numbers you enter. They are not engineering, structural, or code advice. Confirm quantities, product yields, and installation requirements with your supplier, the product label, and your local building authority before you order or build.