Models & Miniatures Tools
Scale ratios, material volumes and coverage — starting with why a step up in scale is modest in length and enormous in everything else.
Real size to model size at any scale and back — plus what a step to the next scale really costs in shelf space and material.
Scale Speed CalculatorScale speed on both conventions — divide by the scale, or by its square root — and why no running speed fixes a model clock.
Model Railroad Curve & Grade CalculatorWhat a layout curve is in prototype feet and degrees, what a grade costs in run, and the helix radius that will actually clear itself.
Ballast Coverage CalculatorBallast for a run of track, traced as the trapezoid it actually is — a flat-slab estimate comes up more than a quarter short.
Silicone Mold Volume CalculatorSilicone for a block mould, box less part — and why the margin you leave matters four times more than what the part displaces.
Body Paint Coverage CalculatorBody paint from surface area and coats, on all three published formulas — which agree through the middle and reach 10% apart at the corners.