RailCalcs — Ballast Calculator

For reference only — not a substitute for professional engineering judgement. See Terms.

Pre-filled from .

Track gauge: — mm · Rail head width: — mm · Rail height: — mm

Results and drawing update as you type.

Sleeper

Length (L) mm

Width (W) mm

Depth (H) mm

Spacing (c/c) mm

Ballast

Depth (d) mm

Shoulder Slope (H:V) :1

Shoulder Width (Left) mm

Shoulder Width (Right) mm

Track Cant mm

Subgrade

Crossfall 1:

Flat crossfall — horizontal formation

Crown — formation higher at centreline, falling to both sides (V-shape)

Consistent — uniform cross-slope across the full section (left/right side may be high depending on sign)

Results appear here.

Cross-Section Drawing

Enter inputs above to see the drawing.

Drawn at sleeper position. Shoulder heaping shown.

Assumptions