Convert years to centuries
Enter the number of years that you want to convert to centuries.
How to Convert Years to Centuries
The year and century are both units of time. By definition, 1 century equals exactly 100 years. This means to convert years to centuries, you divide by 100.
Formula
Step-by-Step Example
Convert 5 yr to centuries:
We need to convert years to centuries
Since 1 century = 100 yr, divide by 100
5 ÷ 100 = 0.05
5 yr = 0.05 century
Year to Century Conversion Table
Quick reference table for common year to century conversions. Click any value for detailed calculation.
| Years (yr) | Centuries (century) |
|---|---|
| 1 yr | 0.01 century |
| 2 yr | 0.02 century |
| 5 yr | 0.05 century |
| 10 yr | 0.1 century |
| 15 yr | 0.15 century |
| 20 yr | 0.2 century |
| 25 yr | 0.25 century |
| 50 yr | 0.5 century |
| 100 yr | 1 century |
About These Units
Year (yr)
A year (yr) equals approximately 365.25 days (accounting for leap years) or 8,760 hours. Years measure age, anniversaries, academic periods, and historical timelines. Earth completes one orbit around the Sun in one year. A fiscal year may differ from a calendar year.
Century (century)
A century equals 100 years or 10 decades. Centuries organize historical periods (19th century = 1801-1900), architectural styles, and long-term climate data. The 21st century began January 1, 2001. "Turn of the century" marks the transition between centuries.
Frequently Asked Questions
How do I convert years to centuries?
To convert years to centuries, divide the value by 100. For example, 10 yr = 0.1 century.
How many centuries are in 1 year?
1 year equals 0.01 centuries.
What is the formula for years to centuries?
The formula is: century = yr ÷ 100.