Site layout · Elevation arithmetic
Convert elevations into signed grade.
Reconcile two elevations across a horizontal distance, lay out station intervals, and compare the measured endpoint with your entered design grade.
← Horizontal distance →↕ Elevation changeStart elevationEnd elevation
← Station interval →↕ Design elevation differenceMeasured station line
1 Enter measured elevations and distance
2 Set layout references
Transparent calculation
Grade percent is elevation change ÷ horizontal distance.
Positive values rise from start to end; negative values fall. The station output includes both endpoints and a final partial interval when needed.