Five phases, not five substances
The Chinese word usually translated as element is closer to phase or movement. Wood, Fire, Earth, Metal and Water describe kinds of change, like stages of a season, rather than physical materials.
Wood is linked with growth and spring, Fire with peak energy and summer, Earth with balance and the turn between seasons, Metal with structure and autumn, and Water with stillness and winter. Chinese astrology borrows these qualities to color each year and each animal.
This is a separate system from the four Western elements used for sun signs. If you want those, see our zodiac elements page; the two lists overlap only in name for Fire, Earth and Water.
Yin and yang in the zodiac
Yin and yang are the two complementary halves of every process in Chinese thought. Yang is associated with activity, light and outward movement; yin with rest, shade and inward focus. Neither is better, and each holds a seed of the other.
In the zodiac, years alternate strictly: a yang year, then a yin year. Six animals are yang (Rat, Tiger, Dragon, Horse, Monkey, Dog) and six are yin (Ox, Rabbit, Snake, Goat, Rooster, Pig), so each animal always appears in the same polarity.
Find a year's element from its last digit
The element of a Chinese year follows the last digit of the year number, in pairs. Years ending in 0 or 1 are Metal, 2 or 3 are Water, 4 or 5 are Wood, 6 or 7 are Fire, and 8 or 9 are Earth. An even final digit means yang, an odd one means yin.
So 2026 is Yang Fire and 2027 is Yin Fire, which is why 2027 is the Year of the Fire Goat. Because each element lasts two years and there are five of them, the elements repeat every 10 years.
One catch: the digit belongs to the Chinese year, which starts at Lunar New Year. A birth on January 20, 2027 belongs to the 2026 year, so its element is Yang Fire, not Yin Fire. The Chinese zodiac calculator handles this automatically.
The generating cycle
The elements feed one another in a fixed loop. Wood feeds Fire, Fire produces Earth as ash, Earth yields Metal from its ores, Metal gathers Water as condensation, and Water nourishes Wood, which closes the circle.
Astrologers use this cycle to describe supportive pairings. When the element of one year feeds the element of another, tradition reads the link as helpful, the way a parent supports a child.
The controlling cycle
A second loop keeps any element from growing too strong. Wood breaks up Earth, as roots split soil; Earth contains Water, as banks hold a river; Water puts out Fire; Fire melts Metal; and Metal cuts Wood.
Control is not the same as harm in this system. It is a balancing force, and tradition sees a healthy whole as one where both cycles are at work. When an element is said to be excessive or lacking in a reading, these two loops are the tools used to explain it.
Fixed elements and year elements
Each animal also has a fixed element of its own: the Rat and Pig are Water, the Tiger and Rabbit are Wood, the Snake and Horse are Fire, the Monkey and Rooster are Metal, and the Ox, Dragon, Goat and Dog are Earth.
That fixed element stays the same, while the year element changes. A Fire Horse doubles up on Fire, while a Water Horse mixes two elements that sit in a controlling relation. Each animal page, such as the Year of the Rat, describes all five versions.