// multi-utility computation suite · offline · instant · precise
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home.staircase-riser-tread Calculator
Calculates riser height and tread depth for a staircase from total rise and number of steps, and checks compliance with the 2R+T = 63–65 cm ergonomic formula. Non-compliant stair geometry is a tripping hazard and a building code violation.
Inputs
Total Rise Mm
Vertical measurement. For health calculators, typically standing height without shoes.
Preferred Riser Mm
Vertical measurement. For health calculators, typically standing height without shoes.
Min Tread Mm
Vertical extent downward, or thickness of a layer. For tanks: affects pressure at the base (P = ρgh).
Results
number of risers
Sample size or count used in the calculation.
actual riser height (mm)
The computed height.
recommended tread depth (mm)
The computed depth.
total going (horizontal run, mm)
The combined total across all inputs and components.
2R + T rule
Reference formula or conversion factor shown for context.