Mayan Numerals Calculator

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Mayan Numerals Converter

Decimal ↔ Maya vigesimal (base-20) bar-and-dot numerals

Decimal Number

Enter any integer 0–1,999,999. Each position represents a power of 20.

Quick Examples

Bar-and-Dot Vigesimal Display

20^2 = 400

5 x 400
= 2,000

20^1 = 20

1 x 20
= 20

20^0 = 1

4 x 1
= 4

Reading guide: Each column is one vigesimal position, read left to right (highest to lowest). A bar (—) represents 5; a dot (●) represents 1. The shell symbol represents zero.

Positional Breakdown

20² = 400 — digit 5 (1 bar)2,000

20¹ = 20 — digit 1 (1 dot)20

20⁰ = 1 — digit 4 (4 dots)4

Decimal value2,024

Decimal

2,024

Vigesimal

5; 1; 4

Mayan Digit Reference (0–19)

About Mayan Numerals

Base-20 (vigesimal) was the counting system of the ancient Maya civilisation (~300 BCE – 900 CE), likely because humans have 20 fingers and toes combined.

Three symbols only: a dot (1), a bar (5), and a shell (0). One of the earliest known uses of zero as a placeholder in any positional numeral system.

Written vertically: positions stack top to bottom, with the highest power of 20 at the top. This calculator displays them left to right for readability.

Calendar use: The Maya Long Count calendar used modified vigesimal (18×20 = 360 days in the second position to approximate the solar year).

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What is Mayan Numerals Calculator?

Mayan Numerals Calculator converts modern numbers into the dot-and-bar numeral system developed by the ancient Maya civilization, including support for their unique calendar-based place values.