Distance Plot
Example Data Table
| Start Northing | End Northing | Delta North | Direction | North/South Distance |
|---|---|---|---|---|
| 1000.00 | 1245.50 | 245.50 | North | 245.50 m |
| 840.00 | 790.25 | -49.75 | South | 49.75 m |
| 2200.00 | 2350.75 | 150.75 | North | 150.75 m |
Formula Used
Coordinate method: Delta North = End Northing - Start Northing.
North/South Distance: Absolute value of Delta North.
Bearing method: Delta North = Horizontal Distance × cos(Bearing).
Horizontal Distance: Slope Distance × cos(Vertical Angle).
Adjusted Distance: North/South Distance × Scale Factor.
How to Use This Calculator
Select the method first. Use coordinate mode when you have start and end northing values. Use bearing mode when field distance and bearing are available. Enter all known values. Choose the unit used by your construction drawing. Add a scale factor when grid-to-ground correction is needed. Press calculate. The result appears above the form.
Construction Guide
Why North South Distance Matters
North south distance is a core layout value in construction. It shows movement along the northing axis. Surveyors use it to check offsets, grid lines, pile positions, trenches, roads, and foundations. A small error can shift a wall, column, or utility route. This calculator helps reduce that risk with clear field values.
Coordinate Based Checking
The coordinate method is best for drawings and total station data. You enter the start northing and end northing. The calculator subtracts the first value from the second value. A positive result means movement toward north. A negative result means movement toward south. The absolute value gives the actual north south distance.
Bearing Based Checking
The bearing method is useful for field measurements. It converts a measured distance into north and east components. The bearing angle is measured from north. The calculator also supports vertical angle correction. This makes the result better for sloped ground, ramps, drains, and embankment work.
Scale and Reporting
Construction layouts may need scale correction. A scale factor can adjust grid distance to a project distance. Keep the value at one when no correction is needed. Use the CSV file for spreadsheets. Use the PDF report for site records. Both downloads support quick checking and documentation.
FAQs
1. What is north south distance?
It is the distance measured along the northing axis between two points. It ignores east west movement and focuses only on vertical grid direction.
2. Is north south distance always positive?
The distance value is normally positive. Delta north can be positive or negative. Positive means north movement. Negative means south movement.
3. Which method should I use?
Use coordinate mode for drawings and survey coordinates. Use bearing mode for measured field distance, bearing, and angle information.
4. What is a scale factor?
A scale factor adjusts measured or grid distance. It helps convert between drawing grid values and corrected site layout values.
5. Can this help with road layout?
Yes. It can check north south offsets for alignments, stations, culverts, edges, and control points during road construction work.
6. What is declination correction?
Declination correction adjusts bearing values. It helps when magnetic bearings need conversion toward project or true north reference.
7. Does vertical angle affect the result?
Yes. A vertical angle changes slope distance into horizontal distance. This improves accuracy when field ground is not level.
8. Can I export the results?
Yes. Use the CSV button for spreadsheet records. Use the PDF button for printable construction reports and site documentation.