// multi-utility computation suite · offline · instant · precise
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│ [c] calcalyst_ │
│ computation suite │
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sci.Fitts-law-pointing-time Calculator
Calculates pointing movement time from Fitts' law and throughput TP = ID/MT to compare input devices. Index of difficulty ID = log₂(2D/W) in bits — mouse throughput ≈ 4–5 bits/s; touchscreen ≈ 3–4 bits/s; eye-gaze tracking ≈ 2–3 bits/s.
Inputs
D Mm
Separation between two points or total path length. Check that units are consistent throughout the calculation.
W Mm
Horizontal extent perpendicular to the length.
A Ms
Reference formula or conversion factor shown for context.
B Ms Per Bit
Reference formula or conversion factor shown for context.
Results
movement time MT (ms)
The computed duration or time value.
index of difficulty ID (bits)
Mining difficulty — the network target that determines how hard it is to mine a valid block. Auto-adjusts to maintain consistent block times.
throughput TP (bits/s)
Amount of work completed per unit time — requests per second, MB/s, or transactions per second.
MT = a + b·log₂(2D/W)
Reference formula or conversion factor shown for context.
throughput benchmark
Amount of work completed per unit time — requests per second, MB/s, or transactions per second.