Mathematics is the queen of the sciences.C. F. Gauss

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Staircase dimensions

Risers, treads, stringer length and stair angle.

6

Enter known values

Fill in the fields below — the result will appear alongside.

Live construction diagram
L = 0 inH = 0 in
in
in
in

Formulas

n=⌈H/ht⌉n=\lceil H/h_t\rceilh=H/nh=H/nm=n−1m=n-1b=L/mb=L/ms=H2+L2s=\sqrt{H^2+L^2}α=atan2⁡(H,L)\alpha=\operatorname{atan2}(H,L)

How it works

Risers, treads, stringer length and stair angle.

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Roofing & rafter calculator

Roof area, pitch geometry, rafter length and material quantities.

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