GPS Position Error Calculator & Accuracy Formula

The Position Error Estimator combines satellite geometry and measurement noise to estimate expected GPS position accuracy. Practical positioning systems always contain errors from multipath, atmospheric conditions and hardware limitations.

GPS Position Error Calculator

INPUTS:

• User Equivalent Range Error = 3 meters
• PDOP = 2

OUTPUTS:

• GPS Position Error = 6 meters

GPS Position Error Formula

Benefits/Applications

• Estimates real world accuracy given current satellite geometry and error sources.
• Aids in GNSS receiver evaluation, field surveys, and simulation testing.
• Useful in robotics, autonomous vehicles, and any location aware platform.

Summary: This estimator delivers an accessible way to quantify how various error sources manifest in final GPS position uncertainty, supporting better planning and system choice.