Track Length Calculator — Layout Planning
Calculate total track length needed for your model railway layout plan including sidings.
How We Calculate This
Calculates main line track length from layout dimensions and track plan style, then adds siding lengths.
Formula
- Oval = 2 x Length + Pi x Radius x 2 (for curves at each end)
- Sidings total = Number of sidings x Average siding length
- Total track = Main line + Sidings total
- Flex track pieces = Total / Track piece length (914mm for OO)
Frequently Asked Questions
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Last updated: February 2026
All calculations are estimates. Always verify quantities before purchasing materials.