Does this unit take into account its own length in the measurement

Thank you for your question. The GLM20 measures from the back of the unit so it does calculate the device itself. If you have further questions please feel free to contact our Bosch Customer Service Representatives at 1-877-BOSCH-99 (1-877-267-2499)

Does it measure in meters/centimeters.

Thank you for your question. The GLM20 will measure in feet and inches, inches only and meters, it does not measure in centimeters. If you have further questions please feel free to contact our Bosch Customer Service Representatives at 1-877-BOSCH-99 (1-877-267-2499)

The specs say indirect. Will it calculate the third leg of a triangle after measuring the first two legs?

Thank you for your question. The GLM20 does not have an indirect measuring feature. The GLM35 does, indirect measurement is the technique of using similar figures and proportions to find a measure. If you have further questions please feel free to contact our Bosch Customer Service Representatives at 1-877-BOSCH-99 (1-877-267-2499).

Mide en metros también?

Gracias por la consulta Sí, puede cambiar la unidad de medida de su GLM 20 apagándolo y presionando el botón de encendido / apagado durante unos segundos. Puede elegir entre M (d), Ft / In, Ft (d). Para obtener más ayuda, contáctenos al 1-877-BOSCH99 (1-877-267-2499) de lunes a viernes 7A-7P CST.

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Description

📐 Measure smarter, not harder—own your space with Bosch BLAZE™ precision!

INSTANT CONFIDENCE - Real-time measurement mode and tactile buttons let you work solo with speed and accuracy—no extra hands needed.
EFFORTLESS OPERATION - Two-button simplicity with a unique rounding function for quick, precise results on the fly.
READ ANYWHERE ANYTIME - Brighter backlit display with large icons ensures flawless readability even in dim or dark environments.
POCKET SIZED POWERHOUSE - Compact, lightweight design with rubber overmold protection fits comfortably in your hand or pocket.
PRECISION THAT PAYS OFF - Measures up to 100 feet with 1/16 inch accuracy—never second guess your dimensions again.

The BOSCH GLM100-23 BLAZE™ Laser Distance Measure delivers professional-grade accuracy up to 100 feet with 1/16 inch precision. Featuring a bright backlit display, intuitive two-button operation, and a unique rounding function, it’s designed for fast, reliable measurements in any lighting. Compact and rugged with rubber overmold housing, it’s the perfect portable tool for managers and pros who demand efficiency and confidence on every project.

Specifications

ASIN	B0C76CPGC7
Are Batteries Included	Yes
Batteries are Included	Yes
Battery Description	Alkaline
Best Sellers Rank	#1,976 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3 in Laser Distance Meters
Brand	Bosch
Brand Name	Bosch
Color	Blue
Customer Reviews	4.7 out of 5 stars 17,522 Reviews
Global Trade Identification Number	00000346809336
Included Components	(1) GLM100-23 BLAZE™ 100 Ft. Laser Measure, (2) AAA Batteries
International Protection Rating	IP00
Item Dimensions L x W x H	3.9"L x 1.7"W x 0.9"H
Item Type Name	Laser Distance Measure
Item Weight	3.04 ounces
League Name	No League
Manufacturer	Bosch
Manufacturer Part Number	GLM100-23
Material	Rubber
Material Type	Rubber
Measuring Range	100ft
Model Number	GLM100-23
Sport	No Sport
Sport Type	No Sport
Team Name	Bosch
UPC	000346809336
Unit Count	1.0 Count
Warranty Description	Bosch measuring and layout tools are covered by a one year limited warranty with an additional year when you register your tool within eight weeks of purchase - for details, call 1-877-BOSCH99
Water Resistance Level	Not Water Resistant

Reviews

R**O

16.02.2026

P**A

12.03.2026

C**I

12.12.2025

A**O

8.03.2026

A**R

28.03.2026

J**K

2.03.2026

C**K

23.04.2026

B**.

4.03.2026

M**I

14.09.2024

A**D

22.07.2019

P**N

1.05.2022

P**N

25.06.2025

R**G

17.05.2022

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BOSCH GLM100-23 100 Ft BLAZE Laser Distance Measure, Includes 2 AA Batteries

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