Almanac & sky · NUMORA
Nayin Calculator
The 60-jiazi nayin.
Open interactive calculatorHow to use
Pairs of stems map onto 30 nayin names.
Formula
nayin = floor(ganzhi index / 2)
FAQ
Is this Nayin calculator accurate?
The formula and assumptions are shown on the page, and the engine is covered by audit tests. Results are for reference — not financial or medical advice.
Do I need an account?
No. Calculations run in your browser. Recents can stay on this device.
What inputs do I need?
Pairs of stems map onto 30 nayin names.
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