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Year (yr)

An average Gregorian year (365.2425 days).

Result31,556,952,000

1 year = 31,556,952,000 milliseconds

Year at a glance

Unit nameYear (plural: years)
Symbolyr
Quantity measuredTime
Measurement systemMetric
Also known asyr, years, annum
Definition exact?No — factor is rounded

1 year in other time units

Unit1 yr equals
Nanosecond3.1556952 × 10¹⁶ ns
Microsecond31,556,952,000,000 µs
Millisecond31,556,952,000 ms
Second31,556,952 s
Minute525,949.2 min
Hour8,765.82 h
Day365.2425 d
Week52.1775 wk
Month12 mo
Decade0.1 dec
Century0.01 c
Millennium0.001 ky
Fortnight26.08875 fn

Popular year conversions

Frequently asked questions

What is a year?
An average Gregorian year (365.2425 days).
What is the symbol for the year?
The symbol for the year is yr. It measures time.
How many milliseconds are in a year?
1 year = 31,556,952,000 milliseconds.
How many seconds are in a year?
1 year = 31,556,952 seconds.
How many minutes are in a year?
1 year = 525,949.2 minutes.