Mayan Numeral Calculator

Numeral Converter

Decimal → Mayan

Mayan → Decimal

Live Clock

Calendar

Quiz

Enter Decimal Number (0-7999)

Mayan Vigesimal Value

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Mayan Numeral Representation

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How to Enter Mayan Numerals

Use the interactive builder below to create Mayan numerals place by place:

Select the place value (20⁰, 20¹, 20², etc.) for a row. Ensure each row has a unique place value.
Use the "+ Dot (1)" and "+ Bar (5)" buttons to set the value (0-19) for that place.
Use "+ Add Place Value" to add more rows (up to 4).
Click "Convert to Decimal" to see the result.

Mayan Numeral Builder

Value: 0

Decimal Value

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Mayan Calendar System

The Maya used multiple calendar systems, including:

Tzolkin: 260-day sacred calendar (13 numbers × 20 day names)
Haab: 365-day solar calendar (18 months of 20 days + 5 extra days)
Long Count: Linear count of days since the mythological creation date (Aug 11, 3114 BCE)

Convert between Gregorian dates and Mayan calendar dates below. Uses the GMT correlation (584283).

Gregorian Date

Mayan Calendar Date

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Mayan Time Display

This clock shows the current time using Mayan vigesimal numerals. Hours (0-23), minutes, and seconds are each displayed as separate Mayan numbers.

Current Time in Mayan Numerals

Mayan Numeral Quiz

Test your knowledge! Can you convert this Mayan numeral to decimal?

What is this number?

Score

0 / 0

About Mayan Numerals

The Maya civilization developed a vigesimal (base-20) number system using only three symbols:

A dot () represents 1
A bar () represents 5
A shell symbol () represents 0

Numbers 1-19 are formed by combining dots (max 4) and bars (max 3). Numbers are written vertically, with place values increasing upwards (20⁰ at the bottom, 20¹ above it, etc.).

Examples

Number 12 (in 20⁰ place)

2 bars (5+5 = 10) + 2 dots (1+1 = 2)

= 12

Number 25 (1.5 in vigesimal)

Place 20¹: 1 dot (1 x 20 = 20) Place 20⁰: 1 bar (5 x 1 = 5)

20¹

20⁰

= 25