T-RTK Height & Fall/Safety Zone Calculator

RTK Height & Fall-Zone Calculator

This tool calculates the height of a tree, pole, tower, or any tall object using a simple screenshot and two distance measurements. It automatically reads latitude and longitude from your screenshot using built-in OCR—no manual typing required.

Once coordinates are captured, you enter:

• Your eye height
• Horizontal distance from you to the base
• Laser distance to the top

The tool computes true object height, then generates:

• A precise fall-radius ring
• An additional 10-ft safety ring
• Values ready for mapping or planning

Features

• Upload any screenshot with visible lat/lon
• Automatic OCR pulls coordinates into the boxes
• Manual editing allowed
• Height calculation using right-triangle geometry
• Auto-generation of fall-radius + extra buffer ring
• Simple and fast field workflow
• Works with SW Maps, SparkFun RTK, SingularXYZ, and more
• Fully mobile-friendly

Perfect For

• Tree felling safety
• Forestry
• Utility pole measurement
• Construction planning
• RTK surveying
• Mapping hazard zones
• Field safety documentation

Workflow

1. Stand back from the object with your RTK rover.
2. Screenshot latitude/longitude.
3. Upload screenshot here → OCR fills coordinates instantly.
4. Enter eye height, base distance, and rangefinder height.
5. Tool outputs:
   • Exact height
   • Fall radius
   • Safety radius

Fast, accurate, and field-ready.