Lat Long Reverse Lookup: Convert Coordinates to Addresses Online

You have a set of GPS coordinates and you need to know what address they correspond to. Maybe a fleet tracker gave you latitude and longitude values, or you exported geotagged data from a drone survey. Whatever the source, you need those numbers translated into real street addresses. That is exactly what a lat long reverse lookup does.

In this guide, I will show you how to convert coordinates to addresses using our free reverse geocoding tool. Whether you need a single lookup or thousands of coordinates processed at once, the entire process takes just a few minutes.

What is a Lat Long Reverse Lookup?

A lat long reverse lookup, also known as reverse geocoding, is the process of converting geographic coordinates (latitude and longitude) into a human-readable street address. It is the opposite of forward geocoding, which converts addresses into coordinates.

Here is the difference:

Forward geocoding: "1000 5th Ave, New York, NY" → 40.7794, -73.9632

Reverse geocoding: 40.7794, -73.9632 → "1000 5th Ave, New York, NY 10028, US"

Every time your phone shows you the name of the street you are standing on, it is performing a reverse geocoding lookup. The same technology is used by logistics companies, researchers, and anyone who needs to make sense of raw coordinate data.

Free Online Reverse Geocoding Tool

CSV2GEO offers a reverse geocoding tool that works directly in your browser. No software to install, no API key required for single lookups. Just enter your coordinates and get the address back instantly.

The tool supports both single coordinate lookups and bulk processing from CSV or Excel files. For single lookups, you do not even need an account. For bulk processing, you can convert up to 100 coordinates per day for free.

How to Reverse Geocode Coordinates (Step by Step)

Here is the complete process for converting coordinates to addresses using the CSV2GEO reverse geocoding tool.

Step 1: Prepare Your Coordinates

Your coordinates need to be in decimal degree format. This is the standard format used by GPS devices, Google Maps, and most mapping software. Each coordinate is a pair of numbers: latitude (north/south) and longitude (east/west).

Here are some examples of famous landmarks:

• Empire State Building: 40.7484, -73.9857
• Golden Gate Bridge: 37.8199, -122.4783
• Statue of Liberty: 40.6892, -74.0445
• Space Needle, Seattle: 47.6205, -122.3493
• Willis Tower, Chicago: 41.8789, -87.6359

Note: Longitude values in the Western Hemisphere are negative. If your coordinates look like "40.7484 N, 73.9857 W", convert them to decimal degrees: 40.7484, -73.9857.

Step 2: Enter or Upload Coordinates

For a single coordinate, go to reverse geocoding tool and type or paste your latitude and longitude values.

For multiple coordinates, go to batch geocoding tool and upload a CSV or Excel file containing your latitude and longitude columns. The system accepts .csv, .xlsx, and .tsv file formats. Your file should look something like this:

id, latitude, longitude

1, 40.7484, -73.9857

2, 37.8199, -122.4783

3, 40.6892, -74.0445

Step 3: Select Reverse Geocoding Mode

After uploading your file, you will see a data grid with your columns. Click the "Reverse" toggle in the options bar to switch from forward geocoding to reverse geocoding mode. Then map your latitude and longitude columns using the column header dropdowns. The AI module usually auto-detects these for you.

Step 4: Get Your Addresses

Click Process to geocode your coordinates. The system returns a full structured address for each coordinate pair. The output includes:

• Street number and street name
• City
• State or province
• Postal code / ZIP
• Country
• Formatted full address
• Relevance score (accuracy indicator, 1.0 = exact match)

Your original data is preserved. The address columns are appended after your existing columns, so you never lose any information.

Bulk Reverse Geocoding from a CSV File

If you have more than a handful of coordinates, uploading a file is the way to go. The process is the same as batch geocoding but in reverse mode.

1. Upload your CSV or Excel file with latitude and longitude columns
2. Select "Reverse" mode in the options bar
3. Map your lat/long columns (usually auto-detected)
4. Preview the first 10 results to verify accuracy
5. Process all data and download your file with addresses appended

CSV2GEO handles files with hundreds of thousands of rows. The first 100 lookups per day are free. For larger volumes, check our batch geocoding plans.

When Do You Need Reverse Geocoding?

The most common use cases we see:

• GPS fleet tracking — convert vehicle coordinates into delivery addresses
• Drone and satellite imagery — identify locations from geotagged images
• Geotagged social media — map coordinates from photo metadata to locations
• Real estate data — convert property coordinates to mailing addresses
• Delivery route verification — confirm coordinates match intended addresses
• Emergency services — translate GPS coordinates to dispatch addresses
• Research and analytics — enrich coordinate datasets with location context

In all of these cases, the raw coordinates are not useful on their own. You need the street address to take action, communicate with people, or generate reports.

Reverse Geocoding Accuracy

CSV2GEO provides rooftop-level accuracy for reverse geocoding. The relevance score in the output tells you how close the returned address is to your input coordinates. A score of 1.0 means the coordinates fall directly on a known building or address point.

Factors that affect accuracy:

Urban vs rural: Urban areas have denser address data, so accuracy is typically higher. Rural coordinates may return the nearest known address.

Coordinate precision: More decimal places mean higher precision. Six decimal places gives you ~0.11 meter accuracy, which is sufficient for any address lookup.

Coverage: CSV2GEO covers over 461 million rooftop addresses in 39 countries, with global coverage (200+ countries) via HERE fallback. The densest coverage is in the USA (121M addresses), Brazil (90M), Mexico (30M), France (26M), and Italy (26M).

Frequently Asked Questions

What is reverse geocoding?

Reverse geocoding is the process of converting latitude and longitude coordinates into a street address. It is the opposite of forward geocoding, which converts addresses into coordinates.

How accurate is lat long reverse lookup?

CSV2GEO uses rooftop-level geocoding data with over 461 million addresses. Each result includes a relevance score from 0 to 1.0, where 1.0 means exact match. Urban areas typically have higher accuracy than rural areas.

Can I reverse geocode multiple coordinates at once?

Yes. Upload a CSV or Excel file with latitude and longitude columns. CSV2GEO processes bulk reverse geocoding for files of any size. The first 100 lookups per day are free.

What coordinate format does CSV2GEO accept?

CSV2GEO accepts decimal degree format (e.g., 40.7484, -73.9857). This is the standard format used by GPS devices, Google Maps, and most mapping software. DMS format (degrees, minutes, seconds) should be converted to decimal degrees first.

Is reverse geocoding free?

Yes. You can reverse geocode up to 100 coordinates per day for free. No credit card required. For larger volumes, pay-as-you-go and subscription plans are available.

What countries are supported for reverse geocoding?

CSV2GEO supports reverse geocoding in 200+ countries, with rooftop accuracy in 39 primary countries worldwide, including the United States, Canada, United Kingdom, Germany, France, Australia, Brazil, Mexico, Italy, and many more.

Start Your Reverse Lookup Now

Ready to convert your coordinates to addresses? Use our reverse geocoding tool for single lookups, or upload a CSV file for batch geocoding for bulk processing. The first 100 lookups are free every day.

Need help with your data? Visit our Help page or contact us directly.

I.A.

CSV2GEO Creator