Calculator
Choose a standard rail or define a custom section.
Formula used
The calculator is based on a simple weight relationship: Weight = (mass per length) × (total rail length).
- Net rail length is computed from your chosen mode (track or pieces).
- Gross rail length applies the allowance:
Gross = Net × (1 + allowance/100). - If you use Area & density, the mass per length is:
kg/m = Area(m²) × Density(kg/m³).
Standard rail selections use typical nominal mass-per-meter values for fast estimating. For procurement, always confirm the supplier’s certified section mass.
How to use this calculator
- Select your input unit system to match your measurements.
- Pick a standard section, or choose custom rail.
- Choose a calculation mode: by track length or by pieces.
- Enter lengths and counts, then add an optional allowance.
- Press Calculate to see results above the form.
- Use Download CSV or Download PDF for sharing.
Example data table
Sample scenarios| Rail Section | Mode | Inputs | Gross Weight |
|---|---|---|---|
| UIC 60 (60E1) | Track | Track length 1,000 m; Tracks 1; Rails/track 2; Allowance 3% | ≈ 124.1 t |
| 115RE | Pieces | Piece length 12 m; Pieces 200; Allowance 2% | ≈ 139.7 t |
| Custom (mass) | Track | Mass 55 kg/m; Track length 500 m; Tracks 2; Rails/track 2; Allowance 5% | ≈ 115.5 t |
Tip: If you know the supplier’s exact mass-per-length value, use the custom method for tighter estimates.
Notes for construction takeoffs
- Allowances often increase for turnouts, yards, and complex cutting plans.
- If you mix rail sizes, run separate calculations and sum the totals.
- For lifting plans, convert gross weight to the planned lifting unit.