This calculator is part of the math section. Keep the current tool open for calculation, then use the related calculators below to compare nearby planning tasks.
Math calculator
Use a fuller distance calculator when you want coordinate distance, spatial distance, and Earth-surface distance collected into one clean page.
How to use this calculator
Distance can mean several related things depending on the problem. On a 2D plane, it is the straight-line length between two coordinate points. In 3D space, the same idea extends with a third axis. On Earth, latitude and longitude distance is usually estimated with a great-circle method. The reference page separates these calculators into multiple sections. This version keeps the same three use cases, but lets the result summary, formula table, and visual reference update live on one page.
Formula / method
Distance depends on the coordinate system. The tool switches between 2D, 3D, and geographic methods while keeping the same input-and-result flow.
Example calculation
The example below reflects the current values shown in the calculator above, so it updates as you change the form without altering the calculation logic itself.
Disclaimer
Results are for reference only. Always verify assumptions, units, and rounding requirements before using an output in school, engineering, or compliance-sensitive work.
FAQ
The 2D formula is d = sqrt((x2 - x1)^2 + (y2 - y1)^2), which measures the straight-line distance between two points on a plane.
The 3D version adds a z-axis term, so the formula becomes d = sqrt((x2 - x1)^2 + (y2 - y1)^2 + (z2 - z1)^2).
This page uses a great-circle style haversine approach, which is a common way to estimate the shortest distance along the Earth's surface between two coordinates.
The reference page uses a calculate-and-show flow. Here the coordinate inputs, formula steps, and distance summary stay visible together while you switch modes or adjust values.