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Free Calculator Tools

Free Model Railroad Scale Tools

Scale Conversion Calculator

Convert real (prototype) size to scale size, or convert scale size to real size.

Scale To Scale Converter

Convert inches to metrics, and convert the size of model railroad scales to other scale sizes (e.g. convert HO scale to OO gauge, or N scale)and Scale Speed Calculator.

Track Grade Calculator

Work out the track grade based on the length of track run and the vertical rise.

Helix Design Calculator

Work out helix dimensions to design and construct a working model railroad helix.

Scale Speed Calculator

Measure scale speeds for trains to cover the distance from point A to point B.