<p><strong>You are correct about the maximum value, you just have the easting and northing backwards.</strong></p>
<p>In your first example, the <em>easting</em> is 414668 m and the <em>northing</em> is 6812844 m. The convention is eastings first. You can think of UTM coordinates as <span class="math-container">$(x, y)$</span> pairs, and they are sometimes labelled as such. Here's the conversion offered by <a href="http://rcn.montana.edu/Resources/Converter.aspx" rel="nofollow noreferrer">one converter</a>:</p>
<p><a href="https://i.sstatic.net/eMH3J.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/eMH3J.png" alt="enter image description here" /></a></p>
<p>As you say, <a href="https://www.maptools.com/tutorials/utm/details" rel="nofollow noreferrer">eastings are usually less than 834 000 m</a>, and more than 160 000 m.</p>
<p>Note than some UTM zones are non-standard widths. Also, you will sometimes see coordinates referenced to some neighbouring zone, which isn't a good idea but is sometimes convenient, so the numbers can be unexpectedly large. Lastly: be aware that in the US you may sometimes come across UTM coordinates in other units, such as feet. Horrible.</p>

CC BY-SA 4.0
2015-10-09T15:57:14.130Z
2021-12-15T11:24:09.383Z
2021-12-15T11:24:09.383Z
Matt Hall
<p>The circumference of the Earth at the equator is ~40,075km.
Given that each UTM Zone is 6 degrees spaced in Longitude, there are then 60 UTM Zones around the globe.
Each Zone is thus 40,075/60 or ~668km at the equator (less towards the poles).
The central Easting for each Zone is 500km, therefore the max and min Easting for each Zone is 500+668/2 (834km) and 500-668/2 (166km). These max and min Easting values clearly diminish at higher Lattitudes.</p>

CC BY-SA 4.0
2018-11-08T11:25:08.543Z
2018-11-08T11:25:08.543Z
Peter Murrell
<p>What is the maximum value of Easting in UTM coordinates?</p>

<p>In many websites I found the answer of maximum value is about <strong>834000</strong> meters, but if you convert some of these coordinates below the value will be much higher than that.</p>

<p>Latitude: 61.44 Longitude: 25.40 --> Converted in UTM: Sector: 35 V  Northing: 414668 Easting: <strong>6812844</strong></p>

<p>Latitude: -47.04 Longitude: -73.48 --> Converted: Sector: 18 G Northing: 615471 Easting: <strong>4789269</strong></p>

<projection><cartography>
What is the maximum value of Easting in UTM coordinates?
exg
# What is the maximum value of Easting in UTM coordinates?

(Asked by: username_0 on 2015-10-09)

What is the maximum value of Easting in UTM coordinates?

In many websites I found the answer of maximum value is about **834000** meters, but if you convert some of these coordinates below the value will be much higher than that.

Latitude: 61.44 Longitude: 25.40 --> Converted in UTM: Sector: 35 V Northing: 414668 Easting: **6812844**

Latitude: -47.04 Longitude: -73.48 --> Converted: Sector: 18 G Northing: 615471 Easting: **4789269**

**Tags:** projection, cartography


---

## 2 answers

### Answer by username_1 on 2015-10-09. Score: 5 | Accepted answer

**You are correct about the maximum value, you just have the easting and northing backwards.**

In your first example, the *easting* is 414668 m and the *northing* is 6812844 m. The convention is eastings first. You can think of UTM coordinates as $(x, y)$ pairs, and they are sometimes labelled as such. Here's the conversion offered by [one converter](http://rcn.montana.edu/Resources/Converter.aspx):

[![enter image description here](https://i.sstatic.net/eMH3J.png)](https://i.sstatic.net/eMH3J.png)

As you say, [eastings are usually less than 834 000 m](https://www.maptools.com/tutorials/utm/details), and more than 160 000 m.

Note than some UTM zones are non-standard widths. Also, you will sometimes see coordinates referenced to some neighbouring zone, which isn't a good idea but is sometimes convenient, so the numbers can be unexpectedly large. Lastly: be aware that in the US you may sometimes come across UTM coordinates in other units, such as feet. Horrible.


---

### Answer by username_2 on 2018-11-08. Score: 1

The circumference of the Earth at the equator is ~40,075km.
Given that each UTM Zone is 6 degrees spaced in Longitude, there are then 60 UTM Zones around the globe.
Each Zone is thus 40,075/60 or ~668km at the equator (less towards the poles).
The central Easting for each Zone is 500km, therefore the max and min Easting for each Zone is 500+668/2 (834km) and 500-668/2 (166km). These max and min Easting values clearly diminish at higher Lattitudes.


---

