// multi-utility computation suite · offline · instant · precise
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math.spiral-length Calculator
Calculates the arc length and growth of an Archimedean or logarithmic spiral from radius, growth rate, and number of turns. The logarithmic spiral appears in nautilus shells, galaxies, and Fibonacci-based plant phyllotaxis — it's self-similar under rotation.
Inputs
A
Distance from centre to edge of a circle. Radius = diameter / 2.
B
Reference formula or conversion factor shown for context.
Turns
Count of items or occurrences.
Theta Start
Reference formula or conversion factor shown for context.