m.measure(1)

✨ m.measure ✨

okay bestie, welcome to the GRASS GIS User's Manual page for m.measure(1) — it's giving measurement era 🎀

💖 NAME 💖

m.measure — measures the lengths and areas of features. that's it, that's the whole job, and it eats every time 💅

🔑 KEYWORDS 🔑

miscellaneous, measurement, distance, area

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🌸 SYNOPSIS 🌸

m.measure
m.measure --help
m.measure [-g] coordinates=east,north[,east,north,...]  [units=string]
[--help]  [--verbose]  [--quiet]  [--ui]

🚩 Flags 🚩

• -g — shell script style ✨
• --help — prints the usage summary, for when you're like "wait what"
• --verbose — verbose module output, aka it tells you everything 👀
• --quiet — quiet module output, aka it tells you nothing 🤫
• --ui — forces the GUI dialog to launch, main character energy for your mouse 🖱️

🎀 Parameters 🎀

• coordinates=east,north[,east,north,...] [required] — the coordinates, bestie. you literally cannot skip this one. it's required fr fr
• units=string — the units 🦋
  • Default: project map units
  • Options: miles, feet, meters, kilometers, acres, hectares

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💜 DESCRIPTION 💜

so m.measure hands you a whole way to measure the lengths and areas of lines and polygons 🫶 no cap. and the areas? they can be stated in acres, hectares, square miles, square feet, square meters and square kilometers. iconic behavior honestly 💅

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🌈 EXAMPLES 🌈

✈️ distance example, orthodrome style

distance example in a latitude-longitude coordinate reference system (on great circle, i.e. an orthodrome):

Bonn_DE="7.09549,50.73438"
Philadelphia_US="-75.16379,39.95233"
m.measure coordinates="$Bonn_DE,$Philadelphia_US" units=kilometers
Length:  6217.916452 kilometers

Visualization (with d.geodesic) of m.measure distance example 🌍

🔲 square example, North Carolina sample dataset

as an example for the North Carolina sample dataset, here four points describing a square of 1000m side length:

m.measure units=meters \
  coordinates=922000,2106000,923000,2106000,923000,2107000,922000,2107000
Length:  3000.000000 meters
Area:    1000000.000000 square meters

and now the script style output moment:

# script style output:
m.measure -g units=hectares \
  coordinates=922000,2106000,923000,2106000,923000,2107000,922000,2107000
units=meters,square meters
length=3000.000000
area=1000000.000000

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👀 SEE ALSO 👀

d.geodesic

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👑 AUTHORS 👑

• Glynn Clements
• Some updates by Martin Landa, CTU in Prague, Czech Republic
• Derived from d.measure by James Westervelt, Michael Shapiro, U.S. Army Construction Engineering Research Laboratory

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📦 SOURCE CODE 📦

Available at: m.measure source code (history)

Accessed: Saturday Jan 17 05:41:36 2026

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© 2003-2025 GRASS Development Team, GRASS GIS 8.4.2 Reference Manual

and that's the whole page bestie, you ate that 🍓✨ mwah 💖 this was GRASS 8.4.2, m.measure(1), signing off 🦋👑