Step-by-step instructions
- Enter or select Baktun.
- Enter or select Katun.
- Enter or select Tun.
- Enter or select Uinal.
- Enter or select K'in.
- Enter or select Days to add.
- Tap Calculate.
- Review the result shown directly below the calculator.
Maya Long Count Add Days Calculator
Add or subtract days from a Long Count date.
How to use the Maya Long Count Add Days Calculator
Add or subtract days from a Long Count date.
What the inputs mean
- Baktun
- Enter the value requested by this field label.
- Katun
- Enter the value requested by this field label.
- Tun
- Enter the value requested by this field label.
- Uinal
- Enter the value requested by this field label.
- K'in
- Enter the value requested by this field label.
- Days to add
- Enter the value requested by this field label.
Formula or calculation method
Long Count arithmetic uses 1 k'in = 1 day; 20 k'in = 1 uinal; 18 uinal = 1 tun = 360 days; 20 tun = 1 katun = 7,200 days; and 20 katun = 1 baktun = 144,000 days.
Example
Enter the requested Maya calendar or number values and compare the result with the documented cycle lengths shown in the explanation.
How to understand the result
Use the result as an estimate based on the values you entered. For planning decisions, double-check that the input units and assumptions match your real situation.
Tip: Keep all values in compatible units and use values from the same time period when the calculator compares two amounts.