Mayan Numerology
The Maya built the most sophisticated calendar system in the ancient world. The Tzolkin — a 260-day sacred calendar interlocking 20 day signs with 13 tones — was the heartbeat of Mesoamerican civilization for over two millennia.
Vigesimal Converter
The Maya used a base-20 (vigesimal) number system — one of only a few cultures to independently invent the concept of zero. Enter any number to see it in Mayan notation.
How to Read It
The Maya counted in twenties, not tens — using just three symbols: a shell for zero, a dot for one, and a bar for five. Numbers stack vertically, and each level upward is worth twenty times the one below it.
0 × 200= 0
Place value 1
Decimal 0 written in Mayan base-20. Read top to bottom: each row is a place-value, and its position multiplies it by a power of twenty (1, 20, 400, 8,000…), just as our digits use powers of ten.
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