Microseconds to Years (µs to yr)
1 microsecond equals 3.168873851×10⁻¹⁴ years (rounded).
How to convert microseconds to years
To convert microseconds to years, multiply the number of microseconds by 3.168873851×10⁻¹⁴. The factor is rounded to 10 significant digits. To go the other way, multiply years by 31,556,952,000,000.
years = microseconds × 3.168873851×10⁻¹⁴
Example: 10 microseconds = 3.168873851×10⁻¹³ years.
Months and years are not constant. This site uses the average Gregorian year of 365.2425 days, so one 'year' converts to 365.2425 days, not 365; use 'common year' for exactly 365 days.
About these units
Microsecond (µs)
One millionth of a second. Used for electronics and processor timing.
Writing a microsecond takes a Greek letter, mu, which stands for the prefix micro-, one millionth. Where plain text cannot display it, people fall back on the letter u and write us. The unit belongs to electronics and radio: a signal that repeats every microsecond has a frequency of 1 MHz, and a radio wave of that period is about 300 m long.
A microsecond is one millionth of a second, short enough that light in a vacuum crosses only about 1 km in 3.34 of them. Digital audio lives on this scale, because a CD sample at 44.1 kHz lasts about 22.7 microseconds and a 48 kHz sample about 20.8. A modern solid-state drive has an access latency of about 50 microseconds, and a camera flash lasts around 1,000. Relativity matters at this scale too: GPS satellite clocks would drift by about 38 microseconds per day without compensation. Wikipedia notes that the 2011 Japanese earthquake shortened the day by about 1.8 microseconds.
1 microsecond = 0.000001 seconds (exactly).
Sources: Wikipedia: Microsecond; BIPM: SI Brochure, 9th edition
Year (yr)
The average Gregorian calendar year of 365.2425 days (31,556,952 seconds). A common year has 365 days and a leap year 366.
A year is the Earth's trip around the Sun, but there are several versions. The tropical year, which tracks the seasons, is about 365.2422 days. The sidereal year, measured against the stars, is about 365.2564 days, roughly 20 minutes longer, because the Earth's axis precesses. Calendars must squeeze these into whole days, which is the origin of leap years. English year descends from Old English gear, while Latin annus, the source of annual, comes from a different root.
The Gregorian calendar, introduced by Pope Gregory XIII's bull of 24 February 1582, fixed the problem of Julian drift that had moved the March equinox away from 21 March and upset the date of Easter. Ten days were skipped, so Thursday 4 October was followed by Friday 15 October. Its rule of skipping leap days in century years not divisible by 400 gives a mean year of 365.2425 days, the value this site uses for the year. Britain and its empire switched in 1752 and Russia in 1918. Scientists write the year as a, with the Julian year fixed at 31,557,600 seconds.
1 year = 31,556,952 seconds (exactly).
Sources: Wikipedia: Year; Wikipedia: Gregorian calendar
Related conversions
- Years to microseconds (reverse)
- Microseconds to seconds
- Microseconds to minutes
- Microseconds to hours
- Microseconds to days
- Microseconds to weeks
- Microseconds to months
- Microseconds to milliseconds
- Microseconds to nanoseconds
- Microseconds to decades
- Microseconds to centuries
- Microseconds to millennia
- Seconds to years
- Minutes to years
- Hours to years
- Days to years
- Weeks to years
- Months to years
- Milliseconds to years
- Nanoseconds to years
- Decades to years
- Centuries to years
- Millennia to years
- Picoseconds to years
See all time units.