Personal projectVue.jsGoogle Maps APIAI AssistantSpherical Geometry

Satellite Area Calculator

Draw on satellite imagery, get the area and distance.

A web app for measuring areas and distances on Google Maps satellite imagery. Draw a shape or a path and the numbers update as you go, or ask the built-in AI assistant to draw, measure and convert units for you.

satellitearea.com
The Satellite Area Calculator: an area drawn over satellite imagery with its measurement shown

Areas and paths are drawn straight onto Google Maps satellite imagery.

38,700+

users so far in 2026

68,000+

page views so far in 2026

15x

the users of all of 2025

270+

users a day over the last 30 days

Overview

Measuring land without leaving the browser

The Satellite Area Calculator lets people draw and measure areas on satellite imagery with accurate results. It is built with Vue.js on top of the Google Maps API, and pairs a simple drawing interface with the full mapping platform underneath.

An AI assistant understands natural language commands, so you can navigate, measure and convert units by typing what you want. A separate distance tool traces lines and paths, and tells straight-line distance apart from the real length of the path.

Nearly 39,000 people have used it so far in 2026, up from about 2,500 in all of 2025, from real estate professionals and roofers to farmers, planners and anyone who needs a measurement from above.

Traction

From 2,500 users to 38,700

In all of 2025 the site had about 2,500 users. In the first nine months of 2026 it had 38,700, nearly 9 in 10 of them from search engines, and daily traffic grew every quarter.

Active users

38,700

2026 to date, up from 2,500 in all of 2025

Page views

68,400

2026 to date, up from 3,700 in all of 2025

Events

212,700

2026 to date, up from 14,000 in all of 2025

Engagement per user

2m 14s

2026 to date, up from 2m 10s in all of 2025

Average users per day, 2026

From 39 a day in January to 277 a day in September

NewReturning
0100200300
JanFebMarAprMayJunJulAugSep

People come back

Returning users went from about 6 a day in January to 54 a day in September, rising from 15% of daily users to about 20% by August: people who measured once come back for the next job.

9x

returning users per day, Jan to Sep

7x

total users per day, Jan to Sep

Found through search

Users by first source, 2026 to date

  • Google search28,633
  • Direct4,074
  • Bing search3,767
  • DuckDuckGo836
  • AI assistants (ChatGPT, Copilot, Perplexity)720
  • Yahoo search548

Google search brought 333 users in all of 2025 and 28,600 so far in 2026.

Source: Google Analytics for satellitearea.com, Jan 1, 2025 to Sep 29, 2026.

Example use cases

From a single lot to a whole district

The same tools cover a property boundary, a planning radius or a set of environmental zones.

Area measurement of adjacent plots

Adjacent plots

Adjacent plot area measurements with precise boundaries

Urban area radius calculation

Urban planning

Urban planning with radius-based area analysis

Large scale environmental assessment

Environmental assessment

Environmental assessment with multiple radius zones

Detailed property measurement

Property measurement

High-resolution property measurement with satellite imagery

How it works

Find it, draw it, measure it

  1. 01

    Find the place

    Navigate high-resolution Google Maps satellite imagery by hand or by asking the assistant.

  2. 02

    Draw

    Outline an area with the drawing tools, or trace a line or path with the distance tool.

  3. 03

    Measure

    Spherical geometry gives accurate area and distance, updated in real time as you draw.

  4. 04

    Convert

    Switch between measurement units, or ask the assistant to convert in plain language.

Key features

What the app does

  • Interactive drawing tools for precise area measurement
  • Distance measurement tool for lines and paths, comparing straight-line to actual path length
  • Optimized AI assistant for natural language draw, measure and unit-conversion commands
  • High-resolution satellite imagery from Google Maps
  • Spherical geometry calculations for accurate measurements
  • Real-time updates as you draw, with support for multiple measurement units

Who uses it

Built for real measurement work

  • Real estate professionals for property assessment and planning
  • Urban planners for development area calculations
  • Researchers for environmental and land use studies
  • Surveyors and engineers for precise area and distance measurements
  • Anyone needing accurate measurements from satellite imagery

Technical implementation

How it is built

Frontend and UI

  • Vue.js for reactive UI components and state management
  • Google Maps API for high-quality satellite imagery
  • Responsive design that works across devices

AI and calculations

  • Optimized AI assistant for fast, natural language map commands
  • Spherical geometry algorithms for accurate area and distance calculations
  • Modern JavaScript features and TypeScript for type safety

Development process

The hard parts

The work focused on an interface that is easy to use while keeping the measurements accurate. The main challenges were:

  • Implementing precise area and distance calculation algorithms for spherical geometry
  • Optimizing the natural language assistant for faster, more reliable map commands
  • Optimizing performance with large satellite imagery datasets
  • Creating a responsive and intuitive drawing interface for both areas and lines
  • Ensuring cross-browser compatibility and mobile responsiveness

Measure something

Try the live demo to see the AI assistant and the area and distance tools working together on real satellite imagery.