UTM coordinates on Google Maps: see where a site plan is and how to get there
Paste the coordinate table from a site plan, or type a single point. The tool applies the datum shift, shows the site on a map, checks the table against itself and opens the location in Google Maps for directions.
- Free, no sign-up
- Fixes legacy datums
- Checks the coordinate table
- Opens in Google Maps
Plot a site plan's UTM coordinates on a map
Zone = 1 + floor((longitude + 180) / 6). The contiguous US spans zones 10 to 19, northern hemisphere. The preloaded example is from Peru, zone 17 South.
Coordinate table
Copy the plan's table from Excel, the PDF or AutoCAD and paste it with Ctrl+V into any cell: the tool recognizes the columns. You can also type point by point; Enter moves to the next row.
Table 1 · 4 points
Table 2 · 4 points
Points read: 8 · tables: 2.
Your plan is here
Center of the lot · Table 1 · points 1 to 4
-9.1071019, -78.5130932
9°06'25.57" S · 78°30'47.14" W
Paste these coordinates as is into Google Maps or a GPS and you land 447 m from here: the dashed outline on the map, the difference between the plan's datum and WGS 84.
Datum shift with the EPSG: PSAD56 to WGS 84 (8) transformation, accurate to ±16 m: enough to find the plan and reach the site; for staking, use control points.
The plan on the map
Drag and zoom to compare with the streets.
Coordinate table check
We compare the distances and angles the table states with the ones its coordinates give. If they don't match, something on the plan is wrong.
Table 1 · points 1 to 4
Area: 94,076.58 m² (9.4077 ha) · Perimeter: 1,270.63 m
The table is consistent: distances and angles match the coordinates.
| Side | Table | Coordinates | Difference (m) |
|---|---|---|---|
| 1 – 2 | 234.8918 | 234.8918 | ✓ -0.000 |
| 2 – 3 | 400.1637 | 400.1637 | ✓ -0.000 |
| 3 – 4 | 235.1478 | 235.1478 | ✓ 0.000 |
| 4 – 1 | 400.4244 | 400.4245 | ✓ 0.000 |
| Point | Table | Interior angle | |
|---|---|---|---|
| 1 | 90°09'45" | 90°09'45" | ✓ Matches |
| 2 | 89°52'27" | 89°52'27" | ✓ Matches |
| 3 | 90°11'22" | 90°11'22" | ✓ Matches |
| 4 | 89°46'27" | 89°46'27" | ✓ Matches |
Table 2 · points A to D
Area: 811.74 m² (0.0812 ha) · Perimeter: 126.56 m
The table doesn't close: the measurements it states don't match its coordinates. Before using it, confirm which of the two is right.
| Side | Table | Coordinates | Difference (m) |
|---|---|---|---|
| A – B | 16.0000 | 16.0676 | ✗ 0.068 |
| B – C | 30.0000 | 47.0048 | ✗ 17.005 |
| C – D | 16.0000 | 33.0673 | ✗ 17.067 |
| D – A | 30.0000 | 30.4154 | ✗ 0.415 |
| Point | Interior angle |
|---|---|
| A | 89°43'34" |
| B | 107°03'15" |
| C | 46°53'37" |
| D | 116°19'34" |
Coordinates of each point
| Point | Easting | Northing | Latitude | Longitude | Google Maps |
|---|---|---|---|---|---|
| 1 | 773650.200 | 8992962.555 | -9.1050551 | -78.5126438 | View ↗ |
| 2 | 773822.010 | 8992802.383 | -9.1064918 | -78.5110717 | View ↗ |
| 3 | 773548.497 | 8992510.285 | -9.1091483 | -78.5135402 | View ↗ |
| 4 | 773376.321 | 8992670.442 | -9.1077118 | -78.5151157 | View ↗ |
| A | 773504.711 | 8992609.558 | -9.1082539 | -78.5139445 | View ↗ |
| B | 773515.724 | 8992621.259 | -9.1081475 | -78.5138452 | View ↗ |
| C | 773557.895 | 8992600.498 | -9.1083325 | -78.5134604 | View ↗ |
| D | 773526.959 | 8992588.819 | -9.1084400 | -78.5137410 | View ↗ |
In short
Google Maps doesn't accept UTM coordinates: only latitude and longitude in degrees, on WGS 84. To find a site plan, convert its easting and northing using the UTM zone and the datum. Legacy datums move the point: PSAD56, common on older Peruvian plans, shifts it about 450 m. This tool reads the plan's coordinate table, applies the datum shift, shows the site on a map, checks the table against itself and opens the location in Google Maps for directions.
How to plot UTM coordinates on Google Maps, step by step
- Copy the plan's coordinate table (point, side, distance, angle, easting and northing) from the PDF, Excel or AutoCAD and paste it into the table with Ctrl+V. No cleanup needed: the tool finds the easting and northing in each row and fills the columns. You can also type the points one by one, or a single point.
- Pick the UTM zone and hemisphere. Plans usually state them in the title block or legend.
- Pick the plan's datum. If it doesn't say, choose «I don't know» and compare where each reading lands on the map.
- Check the site on the map and open it in Google Maps: to see the point, the satellite view, or get directions.
Why not just type the easting and northing into Google Maps? Because its search box only reads degrees: decimal (−9.1071019, −78.5130932), degrees-minutes-seconds or decimal minutes. UTM coordinates must be converted first and, if the plan isn't on WGS 84, shifted to it. We walk through a real case in how to plot a site plan's UTM coordinates on Google Maps.
Zone and datum: what decides where the point lands
UTM coordinates only mean something with their zone, hemisphere and datum. With the wrong zone the point jumps hundreds of kilometers, because the same easting repeats in every zone. With the wrong datum it moves tens or hundreds of meters.
zone = 1 + floor((longitude + 180) ÷ 6)
The contiguous United States runs from zone 10 (West Coast) to zone 19 (Maine), all northern hemisphere. NAD83 matches WGS 84 within a few meters, so NAD83 UTM coordinates plot correctly. NAD27 isn't supported yet, and State Plane coordinates need converting to UTM or latitude and longitude first.
Where the coordinates are on a plan
- Coordinate table: points, sides, distances, angles and the easting and northing of each corner. That's the source to trust.
- Title block or legend: states the zone and the datum.
- Location map: the inset with a coordinate grid on its edges. Good for orienting yourself, not for measuring.
- Viewer coordinates: what AutoCAD or a mobile app shows when you tap the drawing. On a layout they are millimeters of paper; in model space they're only real if the plan was drawn in UTM.
A real example: a site plan from Nuevo Chimbote, Peru
The preloaded example is the coordinate table of a real location plan from Nuevo Chimbote, Peru: a four-corner lot in UTM zone 17 South, PSAD56 datum, plus a second area labeled A to D.
| Point | Easting PSAD56 (m) | Northing PSAD56 (m) | Latitude WGS 84 | Longitude WGS 84 |
|---|---|---|---|---|
| 1 | 773650.1996 | 8992962.5553 | −9.1050551 | −78.5126438 |
| 2 | 773822.0104 | 8992802.3829 | −9.1064918 | −78.5110717 |
| 3 | 773548.4967 | 8992510.2849 | −9.1091483 | −78.5135402 |
| 4 | 773376.3213 | 8992670.4415 | −9.1077118 | −78.5151157 |
The center of the lot is at −9.1071019, −78.5130932, in the Bellamar neighborhood. The table is consistent: its four sides and four angles match the coordinates and enclose 94,076.58 m² (9.41 ha).
Paste the same numbers as if they were WGS 84 and the point lands 447 m to the northeast, in another neighborhood. And the plan's second table doesn't close: it states sides of 16 and 30 m, but its coordinates draw sides of 16.07, 47.00, 33.07 and 30.42 m. The table check flags it in amber.
Why your point lands in the ocean or somewhere else
- Datum not shifted: PSAD56 read as WGS 84 moves the point about 450 m in northern Peru.
- Wrong zone: the point jumps hundreds of kilometers, because the same easting repeats in every zone.
- Wrong hemisphere: «north» instead of «south» puts the point on the other side of the equator.
- Swapped columns: in the southern hemisphere the northing has seven digits and the easting six. The tool tells them apart, but if a table has no header and both have six digits, set the order by hand.
- A mistyped digit: in the example, the location map's grid reads 763,600 where the table says 773,600. That 6 for a 7 is 10 km.
- Viewer coordinates: on a layout they are millimeters of paper, and in model space they only work if the plan was drawn in UTM.
Getting to the site with Google Maps
Open in Google Maps shows the point; Directions opens a route from where you are; Satellite view shows the aerial photo so you can recognize the site. Copy coordinates gives you the latitude and longitude ready to paste into Google Maps or a message. The KML opens the outline in Google Earth.
Need to convert hundreds of points or bring them into Civil 3D? Use the UTM to lat long converter, which exports to Excel, Civil 3D and Google Earth.
Getting plans on legacy datums or not georeferenced? We automate it.
We build AutoCAD and Civil 3D plugins that georeference plans, convert coordinates in bulk and check coordinate tables against your firm's rules.
Free initial diagnosis · No commitment · We reply the same day
Frequently asked questions
How do I enter UTM coordinates in Google Maps?
Google Maps doesn't accept UTM: convert to latitude and longitude on WGS 84 first. Type the easting and northing into this tool, pick the zone, hemisphere and datum, and use Open in Google Maps. You can also copy the latitude and longitude and paste them into the Google Maps search box.
Why do my coordinates land hundreds of meters off?
Usually it's the datum: the plan is on a legacy datum and was read as WGS 84. PSAD56, used on older Peruvian plans, shifts the point about 450 m. Pick the plan's datum and the tool corrects the position.
How do I find the UTM zone of a site plan?
Check the title block or legend. If it isn't there, it follows from the longitude: zone = 1 + floor((longitude + 180) / 6). The contiguous US spans zones 10 to 19, northern hemisphere.
Does it work with NAD83 or State Plane coordinates?
NAD83 UTM coordinates work: NAD83 matches WGS 84 within a few meters. State Plane coordinates need converting to UTM or latitude and longitude first, and NAD27 isn't supported yet.
Can I use the coordinates the AutoCAD viewer shows?
Only in model space, and only if the plan was drawn in real UTM coordinates. On a layout they are millimeters of paper, and many plans are drawn in local coordinates: the viewer shows values like 266.26, 106.43 that don't match the ground. Use the coordinate table.
How accurate is the location?
On WGS 84 or NAD83 the conversion is exact to the coordinates given. With PSAD56 the datum shift is good to about ±16 m: enough to find the site and drive there, not for staking. For boundaries, work from control points surveyed with GNSS.
Are my coordinates sent to a server?
No. Everything runs in your browser. The map downloads OpenStreetMap tiles for the area shown, and coordinates only reach Google if you open one of the Google Maps links.
Go deeper before you decide
How to find the exact location of a site plan from its UTM coordinates and open it in Google Maps
How to find where a site plan is: read its coordinate table, UTM zone and datum, apply the datum shift and open it in Google Maps. A real case.
Civil 3D import points from CSV, Excel or TXT: formats, latitude and longitude, duplicates and the most common errors
How to import points into Civil 3D from Excel: preparing the CSV, picking the PNEZD format, lat/long points, duplicates and why points don't show up.
Contours in Civil 3D: from Google Earth and satellite elevation models to your survey, step by step
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How to go from Civil 3D to Revit: link or import the surface as a toposolid, share coordinates, and bring alignments, corridors and pipe networks across.
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